Patent application number | Description | Published |
20090026604 | Semiconductor plastic package and fabricating method thereof - A semiconductor plastic package and a method of fabricating the semiconductor plastic package are disclosed. A method of fabricating a semiconductor plastic package can include: providing a core board, which includes at least one pad, and which has a coefficient of thermal expansion of 9 ppm/° C. or lower; stacking a build-up insulation layer over the core board; forming an opening by removing a portion of the build-up insulation layer such that the pad is exposed to the exterior; and placing a semiconductor chip in the opening and electrically connecting the semiconductor chip with the pad. This method can be utilized to provide higher reliability in the connection between the semiconductor chip and the circuit board. | 01-29-2009 |
20090084595 | Printed circuit board and manufacturing method of the same - A method of manufacturing a printed circuit board includes stacking a solder resist layer on one side of a carrier; forming a first circuit pattern, which includes a first electrode pad, on the solder resist layer; forming a conductive post on the first electrode pad; stacking and pressing the carrier onto an insulation layer stacked in an inner substrate, such that the conductive post faces the insulation layer; and removing the carrier. As the conductive posts are pressed into the insulation layers to implement interlayer connections, certain drilling processes for forming via holes may be omitted, so that the degree of freedom can be increased in designing the circuits, and the circuits can be made to have greater densities. As the circuit patterns are buried in the insulation layers, the board can be made thinner, and the attachment areas can be increased, to allow greater adhesion. | 04-02-2009 |
20090152742 | Method of manufacturing semiconductor package and semiconductor plastic package using the same - A method of manufacturing a semiconductor package may include: forming a first board; forming second boards, in each of which at least one cavity is formed; attaching the second boards to both sides of the first board, such that the second boards are electrically connected with the first board; and connecting at least one component with the first board by a flip chip method by embedding the component in the cavity. The method can prevent damage to the semiconductor chips and lower manufacturing costs, while the connection material may also mitigate stresses, to prevent cracking in the boards and semiconductor chips, while preventing defects such as bending and warpage. Defects caused by temperature changes may also be avoided. Furthermore, it is not necessary to use an underfill in the portions where the semiconductor chips are connected with the printed circuit board, which allows for easier reworking and lower costs. | 06-18-2009 |
20090236038 | Method for manufacturing insulating sheet and method for manufacturing metal clad laminate and printed circuit board using the same - A method for manufacturing an insulating sheet, a method for manufacturing a metal clad laminate, and a method for manufacturing a printed circuit board are disclosed. The method for manufacturing an insulating sheet may include stacking a thermoplastic resin layer over a reinforcement material, and hot pressing the thermoplastic resin layer into the reinforcement material to impregnate and attach the thermoplastic resin layer into the reinforcement material. Certain embodiments of the invention can be utilized to produce an insulation board that has a coefficient of thermal expansion close to that of the semiconductor chip, and thereby prevent bending or warpage in the multi-layer printed circuit board using the insulation board. Furthermore, the stress in the material connecting the semiconductor chip with the printed circuit board can be reduced, so that cracking or delamination in the connecting material, such as lead-free solder, may be avoided. | 09-24-2009 |
20090242248 | Insulating sheet and printed circuit board having the same - A method of manufacturing an insulating sheet can include: providing a reinforcement material on which a thermoplastic resin layer is stacked, stacking the thermoplastic resin layer stacked on the reinforcement material over a core substrate, and hot pressing the reinforcement material and the thermoplastic resin layer onto the core substrate. This method can be used to produce an insulation board that has a coefficient of thermal expansion close to that of the semiconductor chip, and thereby prevent bending or warpage in the printed circuit board using the insulation board. Furthermore, the stress in the connecting material can be reduced, so that cracking or delamination in the connecting material may be avoided, while heat-releasing performance may also be improved. | 10-01-2009 |
20090250253 | Printed circuit board and manufacturing method thereof - Disclosed are a printed circuit board and a manufacturing method thereof. The method of manufacturing a printed circuit board in accordance with an embodiment of the present invention includes: providing a first resin layer having a first pattern on one surface thereof; forming a conductive bump, which is electrically connected to the first pattern, on one surface of the first resin layer; compressing an insulation layer and the first resin layer such that the conductive bump passes through the insulation layer; laminating a second resin layer, which has a second pattern on a surface thereof facing the insulation layer, on the insulation layer; and forming an opening by etching a part of at least one of the first resin layer and the second resin layer. | 10-08-2009 |
20090255714 | Manufacturing an insulating sheet, a copper clad laminate, and a printed circuit board - A method of manufacturing an insulating sheet, a method of manufacturing a copper clad laminate, and a method of manufacturing a printed circuit board, as well as a printed circuit board manufactured using these methods are disclosed. The method of manufacturing an insulating sheet can include: forming a thermoplastic reinforcement material, which includes fibers secured by a thermoplastic polymer binder, and in which pores are formed; forming a thermoplastic resin layer such that the thermoplastic reinforcement material is impregnated with a thermoplastic resin; and hot pressing the thermoplastic reinforcement material and the thermoplastic resin layer. This method can be utilized to manufacture an insulating sheet, which has a low rate of moisture absorption and superb electrical properties, including a low dielectric constant (Dk) and low dielectric loss (Df), and in which the fibers can readily be impregnated with the resin. | 10-15-2009 |
20090288293 | Metal core package substrate and method for manufacturing the same - A metal core package substrate and a method for manufacturing the same. A method for manufacturing a metal core package substrate may include: forming a plurality of holes in a metal core; forming a plurality of paste bumps piercing into insulation layers of a first copper foil layer and a second copper foil layer; positioning the first and second copper foil layers at positions corresponding to the holes of the metal core so that the paste bumps are opposed to each other around the metal core; allowing each paste bump to pierce into the holes of the metal core by pressing the first and second copper foil layers; and forming inner circuits in the metal core pierced with the paste bumps. | 11-26-2009 |
20100291737 | Method of manufacturing semiconductor package - A method of manufacturing a semiconductor package that includes: forming a first board; forming second boards, in each of which at least one cavity is formed; attaching the second boards to both sides of the first board, such that the second boards are electrically connected with the first board; and connecting at least one component with the first board by a flip chip method by embedding the component in the cavity. The method can prevent damage to the semiconductor chips and lower manufacturing costs, while the connection material may also mitigate stresses, to prevent cracking in the boards and semiconductor chips, while preventing defects such as bending and warpage. Defects caused by temperature changes may also be avoided. Furthermore, it is not necessary to use an underfill in the portions where the semiconductor chips are connected with the printed circuit board, which allows for easier reworking and lower costs. | 11-18-2010 |
20100330747 | Method of fabricating semiconductor plastic package - A method of fabricating a semiconductor plastic package can include: providing a core board, which includes at least one pad, and which has a coefficient of thermal expansion of 9 ppm/° C. or lower; stacking a build-up insulation layer over the core board; forming an opening by removing a portion of the build-up insulation layer such that the pad is exposed to the exterior; and placing a semiconductor chip in the opening and electrically connecting the semiconductor chip with the pad. This method can be utilized to provide higher reliability in the connection between the semiconductor chip and the circuit board. | 12-30-2010 |
20110139499 | Printed circuit board and manufacturing method of the same - A printed circuit board the includes: an insulation layer; a first circuit pattern including a first electrode pad buried in the insulation layer such that a portion of the first circuit pattern is exposed at a surface of the insulation layer; an inner substrate having the insulation layer stacked therein and having a second circuit pattern including a second electrode pad formed thereon; a conductive post buried in the insulation layer such that one end thereof is connected to the first electrode pad and the other end thereof is connected to the second electrode pad; and a solder resist layer stacked on the insulation layer. | 06-16-2011 |
20110315437 | Printed circuit board with reinforced thermoplastic resin layer - A printed circuit board includes; a thermoplastic reinforcement material having fibers secured by a thermoplastic polymer binder and having pores formed therein; a thermoplastic resin layer having the thermoplastic reinforcement material impregnated with a thermoplastic resin; and a circuit pattern formed over the thermoplastic resin layer, wherein the thermoplastic reinforcement material and the thermoplastic resin layer have a thickness ratio (thickness of the thermoplastic reinforcement material÷thickness of the thermoplastic resin layer) of 0.9 or higher. | 12-29-2011 |
20120012247 | Method of manufacturing insulating sheet and printed circuit board having the same - A method of manufacturing an insulating sheet, the method including providing a reinforcement material having a thermoplastic resin layer stacked thereon; stacking the thermoplastic resin layer stacked on the reinforcement material over a core substrate; and hot pressing the reinforcement material and the thermoplastic resin layer onto the core substrate. | 01-19-2012 |
20120012379 | Printed circuit board - A printed circuit board including: an insulation layer; a first pattern buried in one surface of the insulation layer; a first resin layer laminated on one surface of the insulation layer to cover the first pattern; a second pattern buried in the other surface of the insulation layer; a via electrically connecting the first pattern with the second pattern; and a second resin layer laminated on the other surface of the insulation layer to cover the second pattern. | 01-19-2012 |
20120018195 | Printed circuit board - A printed circuit board including: an inner layer substrate part; a first insulation layer laminated on one surface of the inner layer substrate part; a first pattern buried in one surface of the first insulation layer; a first resin layer laminated on one surface of the first insulation layer to cover the first pattern; and a first via electrically connecting the first pattern with the inner layer substrate part, wherein the first resin layer is made of a material comprising one of Liquid Crystal Polymer (LCP), Polyimide (PI), Polytetrafluoroethylene (PTFE). Polyetheretherketon (PEEK) and a photo solder resist. | 01-26-2012 |
20120030938 | Method of manufacturing printed circuit board - A printed circuit board including: an inner layer substrate part; a first insulation layer laminated on one surface of the inner layer substrate part; a first pattern buried in one surface of the first insulation layer; a first resin layer laminated on one surface of the first insulation layer to cover the first pattern; and a first via electrically connecting the first pattern with the inner layer substrate part, wherein the first resin layer is made of a material comprising one of Liquid Crystal Polymer (LCP), Polyimide (PI), Polytetrafluoroethylene (PTFE). Polyetheretherketon (PEEK) and a photo solder resist. | 02-09-2012 |