Patent application number | Description | Published |
20140034708 | SOLAR CELL PAD DRESSING - A process for dressing a solder pad removes excess solder from locations that should be free of solder, such as circuit traces, other solder pads, and components near the solder pad being dressed. A first area of a substrate comprises solder to be removed and is heated to a first temperature. A second area of the substrate is heated to a second temperature. A vacuum nozzle is heated to a third temperature sufficient to melt the solder and is scanned across the area to be dressed, melting and vacuuming away the excess solder. The scanning process is controlled using a computer numerical controlled (CNC) machine. | 02-06-2014 |
20140034715 | VACUUM REFLOW VOIDING REWORK SYSTEM - A solar cell module comprises a solar cell soldered to a mounting element, such as a ceramic substrate. The solder bond can comprise a void. A method of reducing a solder void comprises reflowing the solder using a vacuum source and a heat source in a sealed chamber. The chamber is formed, at least in part, by a cowling into which the solar cell module is mounted. A system for reducing voids in a solder bond comprises a heat source and a vacuum source coupled to the sealed chamber into which a solar cell module is placed. The system can optionally include a control system that automates the execution of methods of reducing solder voids. The system can further include a pressure source to aid in reducing the solder void and reflowing the solder after the void is reduced. | 02-06-2014 |
20140034716 | HOT BAR SOLDERING - A solar cell module comprises a solar cell die that is soldered to a substrate. The substrate comprises one or more power contacts. A power conductor is soldered to a power contact, thereby electrically coupling the power conductor to the solar cell die. A pre-heat module heats a first side of the substrate at a first area to a first temperature for a first duration. Then, a solder heat source solders a power conductor to a power contact at a second area of the substrate at a second temperature for a second duration. The resulting solder connection at the power conductor is less prone to cold-solder defects. The temperature of the pre-heat module is controlled to promote curing of an RTV sealant used in the manufacture of the solar cell module. The temperature of the solder heat source is controlled to avoid burning and degrading of the RTV sealant. | 02-06-2014 |
20140117384 | METHOD OF AND DEVICE FOR MANUFACTURING LED ASSEMBLY USING LIQUID MOLDING TECHNOLOGIES - A method of and a system for making LED comprising concurrently forming multiple dam structures on a whole silicon wafer using a liquid transfer mold, attaching dies to the silicon wafer inside each of the dam structure, performing flux reflow, cleaning flux, performing wire bonding, dispensing phosphor, curing the phosphor, concurrently forming dome structures by using a liquid transfer mold on all of the dam structures, mounting wafer, and using a saw for single or multiple LED(s) singulation. | 05-01-2014 |
20140127987 | ENERGY SAVING-EXHAUST CONTROL AND AUTO SHUT OFF SYSTEM - An energy-efficient ventilation system comprises a ventilation fan, ductwork, system controller, and a plurality of ventilation points, each comprising a damper, a differential pressure sensor, a ventilation point controller, and a fume detector. When a ventilation point does not require ventilation, a signal is sent to the system controller to reduce the ventilation fan speed thereby using only as much energy as is needed to provide service to the ventilation points that need ventilation. The fume detector, damper, and differential pressure sensor for each ventilation point are used to determine whether ventilation is needed at a ventilation point and to control the ventilation point accordingly. | 05-08-2014 |
20140196879 | HEAT SINK THERMAL PRESS FOR PHASE CHANGE HEAT SINK MATERIAL - Methods of and apparatuses for electronic board assembly are provided. The apparatus can comprises one or more thermal heads controlled by a programmable logic controller. A user is able to enter the controlling parameters into the programmable logic controller through an human operator interface. The thermal heads are able to be connected with one or more pneumatic solenoid to make the thermal heads moving vertically until the thermal head in contact with the heat sink. The thermal head is able to provide a temperature, at or above the operating temperature of the thermal pad, capable of making the phase change thermal interface material to bond the heat sink and the electronic boards. | 07-17-2014 |
20140239342 | LED BACK END ASSEMBLY AND METHOD OF MANUFACTURING - An LED device and method of manufacture including separately coupling a thin flexible interposer and an LED die to a heat sink structure and then electrically coupling the interposer and the LED die together with a wirebond. A specifically shaped perimeter of an aperture within the interposer negates the need for a cavity or alignment markings within the heat sink structure by limiting the orientation in which the die fits within the aperture. Alternatively, an LED device and method of manufacture include coupling a rigid circuit board to an LED die such that electrical contacts of the die are electrically coupled with electrical input/output terminals of the circuit board. This die/board unit is then able to be coupled to a heat sink structure to form a portion of the device. | 08-28-2014 |
20140312479 | ESCAPE ROUTES - Methods of and devices for providing escaping routes for the flux and gases generated to move away from the solder joint in the process of solder joint formation. | 10-23-2014 |
Patent application number | Description | Published |
20090075674 | CRC-Based Message Detection/Demodulation Apparatus and Method for Radio Frequency Signals - A method for determining a location of a wireless transmitting device transmitting a digitally modulated transmitted radio frequency signal. The method comprises, at spaced-apart receivers: generating a received radio frequency signal and including time tags therein responsive to the transmitted radio frequency signal, detecting a destination message signal responsive to the received radio frequency signal, comparing the destination message signal and the received radio frequency signal and determining a time of arrival of the destination message signal responsive to the step of comparing and responsive to the time tags. The method further comprises determining a pairwise time difference of arrival of the received radio frequency signal for two pairs of receivers and determining the location of the device responsive to the pairwise time difference of arrival. | 03-19-2009 |
20100259448 | METHOD AND SYSTEM FOR HEALTH MONITORING OF AN OVER THE AIR GEO-LOCATION SYSTEM - A method for testing each one of a plurality of receiving sites operative in a time difference of arrival geo-location system. The method comprises determining a theoretical time of arrival of a test message at each receiving site assuming the test message was transmitted from a test message transmitting antenna at a known location; determining a measured time of arrival of the test message at each receiving site, the test message transmitted from the test message transmitting antenna; determining a true time of arrival of the test message at each receiving site, the true time of arrival comprising the measured time of arrival less a start time of the test message; determining a difference between the theoretical and the true times of arrival for each receiving site, wherein the difference for each receiving site is indicative of a health of the receiving site. | 10-14-2010 |
20110090807 | Method and System for Analyzing Radio Performance During Over-the-Air Operation - An apparatus for determining operating characteristics of radio-frequency (RF) transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises at least one signal sensor for receiving the RF signals, each sensor responsive to the RF signals received at a plurality of antennas or received at a directional antenna, an analyzer for determining signal parameters of received RF signals and for determining operating characteristics of the transmitting devices from the signal parameters, wherein each RF signal includes an identifier of the transmitting device, the apparatus using the identifier to link operating characteristics determined from the RF signals to the transmitting device, and a graphical user interface for displaying the operating characteristics for each transmitting device. | 04-21-2011 |
20110207476 | GPS-Based Location System and Method - A system for locating an object, comprising one or more of a first GPS receiver and a first long and short range transceiver onboard a subject object at a first location; one or more of a second GPS receiver and a second long and short range transceiver onboard a secondary object at a second location; a control center for transmitting a location query message requesting first location information; the first long range transceiver transmitting the first location information to the control center, or the first short range transceiver transmitting the first location information and a subject object identification to the second short range transceiver, that transmits the first location information and the subject object identification to the control center, or the second long range transceiver transmitting the second location information to the control center when the subject object and the secondary object are within a predetermined distance. | 08-25-2011 |
20110319029 | METHOD AND SYSTEM FOR DIAGNOSING RADIO PERFORMANCE DURING FUNCTIONAL OVER-THE-AIR OPERATION - An apparatus for determining a health of radio-frequency transmitters each transmitting a transmitted signal during normal operation. The apparatus comprises a receiver for receiving received signals, each received signal responsive to a transmitted signal, a first element for determining signal parameters of each received signal, the signal parameters responsive to an operating condition of a transmitter, each transmitted signal and each associated received signal including an identifier of the transmitter that transmitted the transmitted signal, the apparatus using the identifier to link determined signal parameters with the transmitter that transmitted the transmitted signal and a second element for determining a health of the transmitter that transmitted the transmitted signal, the health responsive to a relationship between one or more signal parameters and a selected value or a range of selected values for each signal parameter. | 12-29-2011 |
20140092949 | Method and System for Diagnosing Radio Performance During Functional Over-the-Air Operation - An apparatus for determining a health of radio-frequency transmitters each transmitting a transmitted signal during normal operation. The apparatus comprises a receiver for receiving received signals, each received signal responsive to a transmitted signal, a first element for determining signal parameters of each received signal, the signal parameters responsive to an operating condition of a transmitter, each transmitted signal and each associated received signal including an identifier of the transmitter that transmitted the transmitted signal, the apparatus using the identifier to link determined signal parameters with the transmitter that transmitted the transmitted signal and a second element for determining a health of the transmitter that transmitted the transmitted signal, the health responsive to a relationship between one or more signal parameters and a selected value or a range of selected values for each signal parameter. | 04-03-2014 |
20150105030 | Method and System for Analyzing Radio Performance During Over-the-Air Operation - An apparatus for identifying failed or suspect RF transmitting devices while the devices are in normal operation transmitting over-the-air RF signals. The apparatus comprises an RF signal sensor receiving the RF signals from at least one of the devices that are mobile or portable. The sensor is responsive to the received RF signals. An analyzer determines RF frequency characteristics of the received RF signals from the at least one transmitting device, determines the respective identifier of the at least one transmitting device from the received RF signals, and uses the identifier from the received RF signals to correlate the RF frequency characteristics of the particular one of the transmitting devices. A graphical user interface displays at least one RF frequency characteristic in a form that can be used to identify transmitting devices that have failed and transmitting devices that are suspect. | 04-16-2015 |