Yarmchuk
Edward Yarmchuk, Mahopac, NY US
Patent application number | Description | Published |
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20090072387 | CURVILINEAR HEAT SPREADER/LID WITH IMPROVED HEAT DISSIPATION - A heat spreader or lid for a microelectronic package, in which the heat spreader has an underside surface that includes at least one curvilinear contour, in which the curvilinear contour is selected from at least one positive or protruding curvilinear feature, at least one negative or recessed curvilinear feature, and a combination thereof. A microelectronic package that includes the heat spreader/lid, in which there is improved heat dissipation or reduced mechanical stress in an interface between the heat spreader/lid and a circuit chip. | 03-19-2009 |
20120309132 | CURVILINEAR HEAT SPREADER/LID WITH IMPROVED HEAT DISSIPATION - A heat spreader or lid for a microelectronic package, in which the heat spreader has an underside surface that includes at least one curvilinear contour, in which the curvilinear contour is selected from at least one positive or protruding curvilinear feature, at least one negative or recessed curvilinear feature, and a combination thereof. A microelectronic package that includes the heat spreader/lid, in which there is improved heat dissipation or reduced mechanical stress in an interface between the heat spreader/lid and a circuit chip. | 12-06-2012 |
Edward J. Yarmchuk, Mahopac, NY US
Patent application number | Description | Published |
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20080265867 | PROCESS FOR MEASURING BOND-LINE THICKNESS - A process for measuring the thickness of an insulating material. The process includes providing a device used to measure capacitance, and electrically connecting the capacitance measuring device to a heat sink and an electrical, heat-generating component. The thickness of the insulating material is determined by measuring the capacitance of the insulating material according to the formula; | 10-30-2008 |
20100289504 | PROCESS FOR MEASURING BOND-LINE THICKNESS - A process for measuring the thickness of an insulating material. The process includes providing a device used to measure capacitance, and electrically connecting the capacitance measuring device to a heat sink and an electrical, heat-generating component. The thickness of the insulating material is determined by measuring the capacitance of the insulating material according to the formula; | 11-18-2010 |
Edward J. Yarmchuk, Creedmoor, NC US
Patent application number | Description | Published |
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20140070822 | USING IN SITU CAPACITANCE MEASUREMENTS TO MONITOR THE STABILITY OF INTERFACE MATERIALS IN COMPLEX PCB ASSEMBLIES AND OTHER STRUCTURES - An electric potential is applied to first and second electrodes on opposite sides of a gap between an electronic component and a heat spreader. At least one of a thermal interface material in the gap, the electronic component and the heat spreader is subjected to a changing physical condition. The electrical capacitance between the electrodes is monitored during the changing physical condition. Such a method can be practiced using an array of components sharing a common heat spreader. An assembly for testing thermal interfaces includes a printed circuit board, a plurality of electronic components mounted to and operatively associated with the printed circuit board, a heat spreader positioned for absorbing heat generated by the electronic components, a first electrode associated with the heat spreader, a plurality of second electrodes associated, respectively, with the electronic component, and a device for monitoring electrical capacitances between the first and second electrodes. The technique may be employed for monitoring physical changes in electronic devices and other structures having interfaces between components. | 03-13-2014 |
Edward John Yarmchuk, Creedmoor, NC US
Patent application number | Description | Published |
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20110279683 | Automatic Motion Triggered Camera with Improved Triggering - An automatic motion triggered camera with improved triggering to produce images with the target animal substantially centered in the field of view. A single motion detector, a camera, and image memory are controlled by a processor that detects changes in the motion detector output and generates a trigger signal for the camera. The trigger follows a first stage of waiting until a predetermined minimum threshold of movement is detected and a second stage of waiting until a further change in the output signal indicative of an animal being substantially centered in the field of view of the camera is detected. Compensation for camera capture delay time can be included by sampling a plurality of motion detector signals, computing an estimated time at which the animal will be centered, and triggering the camera prior to that time. | 11-17-2011 |