Patent application number | Description | Published |
20110127649 | 3D INTERCONNECTION STRUCTURE AND METHOD OF MANUFACTURING THE SAME - Provided are a three-dimensional (3D) interconnection structure and a method of manufacturing the same. The 3D interconnection structure includes a wafer that has one side of an inverted V-shape whose middle portion is convex and a lower surface having a U-shaped groove for mounting a circuit, and a first electrode formed to cover a part of the inverted V-shaped one side of the wafer and a part of the U-shaped groove. | 06-02-2011 |
20120057864 | OPTICAL TRANSMISSION APPARATUS INCLUDING COOLER - An optical transmission apparatus including a cooler includes: a platform having a transmission line patterned to have an angle of 90°; a light source mounted on the platform such that it is connected to the transmission line of the platform and generating light; a cooler positioned under the platform and uniformly maintaining the temperature of the light source; and a transistor outline (TO) stem package allowing the platform to be mounted thereon and having a lead pin connected to the transmission line of the platform through a bonding wire. Temperature control characteristics are provided, high frequency characteristics are improved, and a lens, or the like, can be mounted in a passive alignment manner. | 03-08-2012 |
20120069574 | OPTICAL TRANSMISSION APPARATUS HAVING TEMPERATURE CONTROL FUNCTION - An optical transmission apparatus having a temperature control function includes: a package having a cavity; a cooler mounted in the cavity and controlling temperature; and a substrate mounted on the cooler and including a light source mounted thereon to generate light. In spite of the presence of the cooler, the apparatus can be implemented to be compact and have a simple structure. | 03-22-2012 |
20120127458 | MULTI-FUNCTION OPTICAL MEASUREMENT DEVICE - A multi-function optical measurement device having an optical wavelength and power measurement function, a ferrule/fiber scoping function, and a ferrule/fiber cleaning function includes a path select unit separating an optical signal for transmission and an optical signal for scoping from a ferrule/fiber; a wavelength and power measurement unit measuring a wavelength and a power of the optical signal for transmission from the path select unit; and a ferrule/fiber scoping unit converting an optical signal for scoping from the path select unit into an electrical signal. It is possible to perform a wavelength and power measurement and a ferrule/fiber scoping by one connection. Since a ferrule/fiber cleaning may be additionally included in one measurement device, it is easy to handle and carry an optical measurement device. A time required to perform a work using an optical measurement device may be reduced. | 05-24-2012 |
20120128295 | MULTI-CHANNEL OPTICAL MODULE - The present inventive concept herein relates to multi-channel optical modules, and more particularly, to a multi-channel optical module capable of processing a plurality of signals having different optical wavelengths. The multi-channel optical module may include a stem including one or more cavities; at least one lead pin formed in one or more cavities; a plurality of optical devices formed in the one or more cavities; and a filter portion forming an optical path between the plurality of optical devices and an optical fiber by separating a plurality of optical signals according to a wavelength. According to the inventive concept, processing capacity of the optical module may be improved. Also, according to the inventive concept, electrical and optical cross talk of the optical module may be reduced. | 05-24-2012 |
20120286401 | 3D INTERCONNECTION STRUCTURE AND METHOD OF MANUFACTURING THE SAME - Provided are a three-dimensional (3D) interconnection structure and a method of manufacturing the same. The 3D interconnection structure includes a wafer that has one side of an inverted V-shape whose middle portion is convex and a lower surface having a U-shaped groove for mounting a circuit, and a first electrode formed to cover a part of the inverted V-shaped one side of the wafer and a part of the U-shaped groove. | 11-15-2012 |
20130027760 | OPTICAL PROBE USING SENSOR AND METHOD FOR CONTROLLING THE SAME - Disclosed are an optical probe using a sensor and a method for controlling the same. The optical probe includes: an optical converter to change a light path of light generated from a light source; a vibrator to convert an electrical signal into a mechanical motion; a transmission member to transmit the motion of the vibrator to the optical converter; a position sensor to sense the position of the optical converter; and a controller to adjust the position of the optical converter by controlling the vibrator based on the position sensed by the position sensor. | 01-31-2013 |
20130033573 | OPTICAL PHASE EXTRACTION SYSTEM HAVING PHASE COMPENSATIONFUNCTION OF CLOSED LOOP TYPE AND THREE-DIMENSIONAL IMAGEEXTRACTION METHOD THEREOF - Provided is an image extraction method of optical phase extraction system. The image extraction method may include checking whether a phase error due to an environmental disturbance of optical fiber occurs by monitoring an output signal obtained by interfering reflection optical signals reflected through two paths. When a phase error occurs, an error is compensated using a phase compensation control method of closed loop type through one of the two paths and an image is extracted by capturing an image of object in a state that the image of object is shifted by the set phase value when a phase error is compensated. According to the inventive concept, a phase error occurring in an optical fiber type interferometer due to an environmental disturbance is minimized or compensated. Also, since an interference image accurately shifted by the phase value set among arbitrary various phase values is obtained through a camera, reliability of three-dimensional phase information being extracted is guaranteed. | 02-07-2013 |
20130034357 | BIDIRECTIONAL OPTICAL TRANSMISSION AND RECEIVING DEVICE - There is provided a bi-directional optical transmitting and receiving apparatus. The bi-directional optical transmitting and receiving apparatus includes: a package having a cavity and allowing a plurality of lead wires to pass therethrough; a platform mounted on the package and including a through hole formed above the cavity and having sloped surfaces; a reception unit mounted within the cavity and generating an electrical signal corresponding to input light made incident to the cavity through the through hole and outputting the generated electrical signal to at least one of the plurality of lead wires; a transmission unit mounted on the platform and generating output light according to an electrical signal transmitted through at least one of the plurality of lead wires; and a wavelength division multiplexing (WDM) filter mounted on the platform to transfer the output light toward an optical fiber and the input light toward the through hole. | 02-07-2013 |
20130071126 | BIDIRECTIONAL OPTICAL TRANSMITTING AND RECEIVING DEVICE - Disclosed is a bidirectional light transmitting and receiving device which includes a first conductive plate; a second conductive plate; at least one first lead pin which penetrates the first conductive plate and includes a first conductor and a first dielectric surrounding the first conductor; at least one second lead pin which penetrates the second conductive plate and includes a second conductor and a second dielectric surrounding the second conductor; a light receiving unit which is connected with the at least one first lead pin; and a light transmitting unit which is connected with the at least one second lead pin, wherein the first conductive plate is electrically isolated from the second conductive plate. | 03-21-2013 |
20130084633 | PETRI DISHES - Provided is a Petri dish, which improves or maximizes productivity. The Petri dish includes a dish including a bottom and a side wall, and accommodating a culture solution, and a cover covering an upper portion of the dish. The bottom of the dish includes a support region having a first thickness, and a measurement region having a second thickness smaller than the first thickness. | 04-04-2013 |
20130108262 | MULTI-CHANNEL OPTICAL MODULE | 05-02-2013 |
20130272665 | MULTI-CHANNEL OPTICAL MODULE - The multi-channel optical module in accordance with some embodiments of the inventive may comprise a housing; an optical fiber disposed on one side of the housing; a plurality of optical devices disposed on the other side of the housing separated from the optical fiber; and a polyhedral mirror disposed between the optical devices and having mirror sides reflecting an optical signal between the optical fiber and the optical devices. | 10-17-2013 |
20140081126 | APPARATUS FOR GUIDING ENDOSCOPE AND METHOD THEREFOR - An apparatus for guiding an endoscope and a method thereof are provided. According to an embodiment of the present invention, there is provided an endoscope guide method including: acquiring tomogram information of tissues based on an optical interference signal according to an optical signal; calculating a distance between an endoscope and the tissues based on the tomogram information; and controlling the location of the endoscope according to the result of comparison between the distance between the endoscope and the tissues and a predetermined reference distance. Accordingly, it is possible to accurately measure the distance between an endoscope and tissues. | 03-20-2014 |
20140126062 | SUNLIGHT COUPLER AND SUNLIGHT SYSTEM COMPRISING THEREOF - A sunlight coupler is provided, the sunlight coupler may include a beam integrator configured to concentrate beams of sunlight, which may be incident from a plurality of optical fibers, in the form of a single beam, a triplet lens focusing the concentrated beam on a specific position, and an optical fiber provided for transmission of the focused sunlight. The optical fiber may be a thermally-diffusion expand core fiber. | 05-08-2014 |
20140147085 | MULTI-CHANNEL OPTICAL MODULE AND MANUFACTURING METHOD OF THE SAME - Provided is a multi-channel optical module and a manufacturing method of the same. The optical module includes a base block having a cavity on one edge(?) of the base block; a substrate arranged on the other side of the base block that faces the cavity; an integrated circuit (IC) chip mounted on the substrate; a platform arranged in the cavity; electrical contacts connected to the IC chip, wherein the electrical contacts are formed on the platform; an optical device array block arranged in the platform, wherein the optical device array block is connected to the electrical contacts; a plurality of optical fiber cores aligned with the optical device array block; and an optical fiber array block fixing the plurality of optical fiber cores, wherein the optical fiber array block is bonded to the platform and to the optical device array block and is fixed in the cavity. | 05-29-2014 |
20150043166 | OPTICAL TRANSMITTER MODULE WITH TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING THE SAME - The optical transmitter module may include a thermal-electric cooler comprising at least one metal pattern formed on a side of a cooling plate temperature of which is controlled by thermo-electric cooling elements, a laser diode installed in one of the at least one metal pattern, and a monitor photo diode which is installed in another one of the at least one metal pattern and monitors change of light signals emitted from the laser diode. Therefore, since elements are located on the same side of the cooling plate, the optical transmitter module may have a simple structure and an advantage that light signals emitted from the laser diode can be directly coupled to the optical fiber without optical path conversions. Also, since the laser diode is installed with a small gap from thermal-electric elements, the temperature control characteristics of the thermal-electric cooler can be enhanced. | 02-12-2015 |
20150102802 | OPTICAL FIBER CURRENT SENSOR - An optical fiber current sensor includes a transmitter optical subassembly (TOSA) that is formed in a package of a linear polarizer that applies light from a light source to a sensor coil that is formed with an optical fiber by linearly polarizing, a polarization beam splitter that separates light that is reflected from the sensor coil according to polarization, and a receiver optical subassembly (ROSA) that is formed in a package together with first and second photodetectors that detect separated light according to polarization. | 04-16-2015 |
20150159997 | WAVELENGTH-SELECTABLE COATING THICKNESS MEASUREMENT APPARATUS - Provided is an apparatus that measures a thickness of a coating by selecting a wavelength of a laser based on a color of the coating using a contactless method using a photoacoustic effect and an interferometer, the apparatus including a pulsed laser source to irradiate a pulsed laser beam toward the coating, a continuous wave (CW) laser source to irradiate a CW laser beam toward the coating, a detector to detect an optical interference signal corresponding to the CW laser beam, and a signal processor to process the optical interference signal to calculate a thickness of the coating. | 06-11-2015 |
20150214305 | METHOD OF FABRICATING GRAPHENE NANO DEVICE - Provided is a method of fabricating a graphene nano device. The method includes forming a first metal mask pattern on a substrate on which a graphene layer is formed, and forming a graphene pattern by performing an etching process on the graphene layer using the first metal mask pattern as an etching mask. The forming of the first metal mask pattern includes forming a first adhesive layer on the graphene layer, disposing the first metal mask pattern prepared in advance on the first adhesive layer, and heating the first adhesive layer to attach the first metal mask pattern on the substrate. | 07-30-2015 |
20160097518 | ASTRAL LAMP DEVICE HAVING DETACHABLE AND ANGLE-CONTROLLABLE LED MODULE BLOCKS AND METHOD OF SETTING THE SAME - Disclosed herein are an astral lamp device having detachable and angle-controllable LED module blocks and a method of setting the same. The astral lamp device having detachable and angle-controllable LED module blocks, includes a plurality of LED module blocks having one end attached to and disposed on a central frame; and an angle control part configured to control an angle of the LED module block attached to the central frame. | 04-07-2016 |
Patent application number | Description | Published |
20110148865 | METHOD FOR AUTOMATIC RIGGING AND SHAPE SURFACE TRANSFER OF 3D STANDARD MESH MODEL BASED ON MUSCLE AND NURBS BY USING PARAMETRIC CONTROL - The present invention relates to a method for automatic rigging and shape surface transfer of a 3-D standard mesh model based on muscles and Nurbs by using parametric control. The method for automatic rigging and appearance surface transfer of 3-D standard mesh model based on muscle and Nurbs by using parametric control includes: extracting a joint-skeleton structure from scan data of dynamic objects having a skeleton structure, or input 3-D mesh models, generating a muscle and a appearance surface based on anatomy information, and generating a standard mesh model that approximates the appearance of the models by using the extracted joint-skeleton structure and the generated muscle and appearance surface; and performing the transfer of the standard mesh model by controlling the parameter so that the occupying error between the multi-view image information of the dynamic objects and the projection image information of the approximating standard mesh model is in the predetermined allowable error range. | 06-23-2011 |
20110148875 | METHOD AND APPARATUS FOR CAPTURING MOTION OF DYNAMIC OBJECT - The present invention relates to a method and apparatus for capturing a motion of a dynamic object, and restore appearance information of an object making a dynamic motion and motion information of main joints from multi-viewpoint video images of motion information of a dynamic object such as a human body, making a motion through a motion of a skeletal structure on the basis of the skeletal structure, acquired by using multiple cameras. According to the exemplary embodiments of the present invention, it is possible to restore motion information of the object making a dynamic motion by using only an image sensor for a visible light range and to reproduce a multi-viewpoint image by effectively storing the restored information. Further, it is possible to restore motion information of the dynamic object without attaching a specific marker. | 06-23-2011 |
20120154393 | APPARATUS AND METHOD FOR CREATING ANIMATION BY CAPTURING MOVEMENTS OF NON-RIGID OBJECTS - Disclosed herein are an apparatus and method for creating animation by capturing the motions of a non-rigid object. The apparatus includes a geometry mesh reconstruction unit, a motion capture unit, and a content creation unit. The geometry mesh reconstruction unit receives moving images captured by a plurality of cameras, and generates a reconstruction mesh set for each frame. The motion capture unit generates mesh graph sets for the reconstruction mesh set and generates motion data, including motion information, using the mesh graph sets. The content creation unit creates three-dimensional (3D) content for a non-rigid object by generating a final transformation mesh set, having a topology similar to that of the reconstruction mesh set, using the motion data. | 06-21-2012 |
20120162217 | 3D MODEL SHAPE TRANSFORMATION METHOD AND APPARATUS - Disclosed herein is a 3D model shape transformation apparatus. The 3D model shape transformation apparatus includes a camera unit, a shape restoration unit, a skeleton structure generation unit, and a skeleton transformation unit. The camera unit obtains a plurality of 2D images in a single frame by capturing the shape of an object. The shape restoration unit generates a 3D volume model by restoring the shape of the object based on the plurality of 2D images. The skeleton structure generation unit generates the skeleton structure of the 3D volume model. The skeleton transformation unit transforms the size and posture of the 3D volume model into those of a template model by matching the skeleton structure of the template model with the skeleton structure of the 3D volume model. | 06-28-2012 |
20120163675 | MOTION CAPTURE APPARATUS AND METHOD - Disclosed herein is a motion capture apparatus and method. The motion capture apparatus includes a three-dimensional (3D) appearance reconstruction unit for reconstructing a 3D appearance of an entity using a multi-view image obtained by capturing the entity at a T+1-th frame. A 3D skeleton generation unit generates a 3D skeleton of the T+1-th frame using the 3D appearance and a model of the entity having a motion of a T-th frame. A motion reconstruction unit reconstructs a motion of the T+1-th frame of the model by changing the motion of the model based on the 3D skeleton of the T+1-th frame. | 06-28-2012 |
20120163733 | APPARATUS AND METHOD FOR CREATING 3D CONTENT FOR ORIENTAL PAINTING - Disclosed herein are an apparatus and method for creating 3D content for an Oriental painting. The apparatus includes a 2D image analysis unit, a 3D information extraction unit, a content creation unit, and a 3D content conversion unit. The 2D image analysis unit receives previous knowledge information, and analyzes 2D information about at least one of an empty space, light and shading, and a composition of an image of the Oriental painting based on the previous knowledge information. The 3D information extraction unit extracts 3D information about at least one of a distance, a depth, a viewpoint, and a focus of the Oriental painting image. The content creation unit creates content for the Oriental painting image based on the analysis information and the 3D information. The 3D content conversion unit converts the content for the Oriental painting image into 3D content based on the 3D information. | 06-28-2012 |
Patent application number | Description | Published |
20090293533 | Refrigerator - A refrigerator includes an ice maker disposed at one side of a storage chamber for storing food, a folding shelf disposed at the ice maker to be folded in a vertical direction or unfolded in a horizontal direction to efficiently use a space formed on the side of the ice maker, a shelf supporting member fixed to the ice maker to rotatably support the folding shelf, and a locking part disposed at the shelf supporting member to support the folding shelf when the folding shelf is unfolded to be arranged in a horizontal direction. When the folding shelf disposed in the storage chamber is folded in a vertical direction, there is formed a space capable of storing containers or food products having a great height. When the folding shelf is unfolded in a horizontal direction, containers or food products having a small height may be put on the folding shelf. Thus, a storage space of the refrigerator may be more efficiently used. | 12-03-2009 |
20100077789 | Refrigerator and ice storage container therefor - A refrigerator includes an ice storage container coupled to a mounting space of an inner wall of a freezing chamber door, and the ice storage container is attachable to and detachable from the mounting space by elastic lever units to maintain and release locking of the ice storage container with the mounting space, and elastic coupling units to maintain coupling of the ice storage container to the mounting space by elastic deformation and restrict movement of the ice storage container in the horizontal direction of the mounting space when the ice storage container is mounted on the mounting space, thereby preventing abrasion and breakdown of components due to user's ease in the assembly of the ice storage container and increase in the fixing force of the ice storage container. | 04-01-2010 |
20100083685 | Refrigerator - Disclosed is a refrigerator including a main body cabinet forming a storage compartment with a front opening, a door opening and closing the front opening of the storage compartment, and an ice making tray mounted to the door and making ice. The refrigerator includes a water supplying pipe which receives water from a water supplying source; a discharging pipe guide which includes a hollow part and is mounted to a through part penetrating from an outside region of the door to an upper side of the ice making tray; and a discharging pipe which includes a first end detachably connected to the water supplying pipe, and a second end disposed above the ice making tray after passing through the hollow part and detachably coupled to the door. | 04-08-2010 |
20130098097 | REFRIGERATOR WITH ICEMAKER COMPARTMENT HAVING AN IMPROVED AIR FLOW - A refrigerator with an ice making device. The refrigerator includes a body defined with a refrigerating compartment, a freezing compartment, and an ice making compartment, the ice making compartment arranged in the refrigerating compartment while being thermally insulated from the refrigerating compartment, a first evaporator arranged in the refrigerating compartment, a second evaporator arranged in the freezing compartment, a refrigerating duct for circulating cold air from the first evaporator to the refrigerating compartment, a freezing duct for circulating cold air from the second evaporator to the freezing compartment, and an ice making flow passage for communicating the second evaporator and the ice making compartment. The second evaporator, ice making compartment, and ice making flow passage form a closed circuit such that the cold air in the ice making compartment does not enter the refrigerating compartment. | 04-25-2013 |
20140305156 | REFRIGERATOR WITH ICEMAKER COMPARTMENT HAVING AN IMPROVED AIR FLOW - A refrigerator includes body having a refrigerating compartment, a freezing compartment, and an ice making compartment disposed outside the freezing compartment. The ice making compartment is in communication with an evaporator space via a supply duct to supply cold air from the evaporator to the ice making compartment, a blowing fan to introduce cold air from the evaporator into the ice making compartment, and a return duct configured so that circulated air inside the ice making compartment is discharged through an outlet of the return duct and mixed together with circulated air from inside the freezing compartment at a lower region of the evaporator space, the mixed air flowing through the evaporator in an upward direction as the mixed air is heat exchanged by the evaporator before being discharged to the freezing compartment or the supply duct. | 10-16-2014 |
20150338157 | REFRIGERATOR - A refrigerator includes a storage chamber for storing food; an ice making compartment provided at an upper side corner of the storage chamber; and two shelves provided between a sidewall of the ice making compartment and a sidewall of the storage chamber opposite to the sidewall of the ice making compartment. The two shelves include a rotatable shelf and a horizontal shelf mounted between the sidewall of the storage chamber and the rotatable shelf and configured to be adjustable vertically upwards and downwards independently of the rotatable shelf. The rotatable shelf, while maintaining the vertical position, forms a vertical space for keeping food having a great height and stored on a shelf provided below the rotatable shelf. The rotatable shelf and the horizontal shelf form a horizontal space for keeping food having a great width when the horizontal shelf and the rotatable shelf in the horizontal position are horizontally aligned. | 11-26-2015 |
Patent application number | Description | Published |
20090272994 | SEMICONDUCTOR LIGHT EMITTING DEVICE - The embodiment discloses a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, a second conductive semiconductor layer on the active layer, a first electrode formed under the first conductive semiconductor layer and comprising a patterns of a predetermined shape, and a nitride semiconductor layer between the patterns of the first electrode. | 11-05-2009 |
20100155752 | SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device that includes a first conductive type semiconductor layer, a first electrode, a insulating layer, and an electrode layer. The first electrode has at least one branch on the first conductive type semiconductor layer. The insulating layer is disposed on the first electrode. The electrode layer is disposed on the insulating layer. | 06-24-2010 |
20100295080 | LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE HAVING THE SAME - A light emitting device may comprise a first semiconductor layer having a first and second surfaces, the first and second surfaces being opposite surfaces, the first semiconductor layer having a plurality of semiconductor columns extending from the second surface, the plurality of semiconductor columns being separated from each other; a light emitting structure formed over the first semiconductor layer, the light emitting structure including a first conductive semiconductor layer, an active layer and a second semiconductor layer, the light emitting structure having a side surface and an exposed side surface of a semiconductor column closest to the side surface of the light emitting structure being non-aligned with the side surface of the light emitting structure; and a substrate provided adjacent to the plurality of semiconductor columns. | 11-25-2010 |
20110012152 | LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE HAVING THE SAME - Disclosed are a light emitting device and a light emitting device package having the same. The light emitting device includes a light emitting structure that includes a first conductive type semiconductor layer, an active layer on the first conductive type semiconductor layer, and a second conductive type semiconductor layer on the active layer, a first electrode including at least one arm shape and contacted with a portion of the first conductive type semiconductor layer, an insulating layer covering the first electrode, and a second electrode including on at least one arm shape, wherein the second electrode disposes on at least one of the insulating layer and the second conductive type semiconductor layer. | 01-20-2011 |
20130037848 | LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE HAVING THE SAME - Disclosed are a light emitting device and a light emitting device package having the same. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, a first electrode disposed in an opening portion of the light emitting structure and contacted with a portion of the first conductive type semiconductor layer, an insulating layer covering the first electrode, a second electrode disposed on the insulating layer and connected to the second conductive type semiconductor layer, a first electrode layer under the second electrode. | 02-14-2013 |
20140077252 | SEMICONDUCTOR LIGHT EMITTING DEVICE - A light emitting device including a first conductive type semiconductor layer, an active layer on the first conductive type semiconductor layer, a second conductive type semiconductor layer on the active layer, an electrode layer on the second conductive type semiconductor layer, a first electrode on the first conductive type semiconductor layer, and a second electrode on the second conductive type semiconductor layer and in an opening, the opening being in the electrode layer, wherein the second electrode has a first portion in the opening and a second portion extending from the first portion and overlapping at least a portion of the first electrode. | 03-20-2014 |
20140110746 | LIGHT EMITTING DEVICE AND LIGHT EMITTING DEVICE PACKAGE HAVING THE SAME - Disclosed are a light emitting device. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, a first electrode disposed in an opening portion of the light emitting structure and contacted with a portion of the first conductive type semiconductor layer, an insulating layer covering the first electrode, a second electrode disposed connected to the second conductive type semiconductor layer and first electrode layer is connected to the second conductive type semiconductor layer and the second electrode. The first electrode layer is disposed on a top surface of the second conductive type semiconductor layer and a top surface of the insulating layer. The second electrode is not vertically overlapped with the first electrode. | 04-24-2014 |