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Fong, San Jose
Alex F. Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090207399 | Lithographic method - A method of calibrating a front to backside alignment capable lithographic apparatus. The method includes attaching a substrate having a plurality of alignment marks to a carrier, the substrate being arranged such that the alignment marks face towards the carrier; reducing the thickness of the substrate; using an alignment system of the apparatus to measure the positions of images of alignment marks formed by optics in a substrate table of the apparatus; projecting a pattern onto the substrate, the position of the pattern being determined according to the measured positions of the alignment marks; measuring the positions of the projected pattern and the alignment marks provided on the opposite side of the substrate, the position of the alignment marks provided on the opposite side of the substrate being measured by the alignment system directing radiation through the substrate; and comparing the measured positions in order to determine an overlay error. | 08-20-2009 |
| 20100221497 | Device with Protective Layer - A fluid impermeable protective layer is described for a structure that has a 3-dimensional profile. The 3-dimensional profile can include actuators. The protective layer is applied so that there are no breaches in the protective layer and so that the protective layer is not too thick to prevent the actuators from being able to properly function. | 09-02-2010 |
David Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090039897 | Systems and Methods for Scan Chain Testing Using Analog Signals - Systems and methods for utilizing analog signals for scan chain testing of a device are disclosed. At least one embodiment includes a method for utilizing an analog signal for scan chain testing of a device comprising: passing digital input signals from a test module into a signal disassembler configured to divide the digital input signals into bits corresponding to each of the digital input signals, passing the bits into a digital-to-analog converter configured to generate an analog input signal, passing the analog input signal to an analog-to-digital converter within the device under test to obtain bits corresponding to each of the digital input signals, passing the bits as inputs to scan chains within the device under test, and utilizing the bits to test the device under test by the scan chains. | 02-12-2009 |
David C. Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110262258 | Small Chip Packaging Fixture And Method Of Using Magnetic Field Assisted Self-alignment and Its Application for RFID Chip To Antenna Assembly - A method and fixture using magnetic field assisted self-alignment for chip packaging. Typical embodiments include a magnetic device having one or more pole groups, each pole group including two or three poles. Some embodiments provide multiple pole groups arranged in a one or two dimensional pole group array. The poles can build up a self-alignment magnetic field. The structure of fixture is simple and easy to implement. Typical embodiments can greatly reduce chip packaging cost and make packaging more efficient. In accordance with typical embodiments, a chip and a substrate can be self-aligned magnetically regardless of their shapes. | 10-27-2011 |
Steven Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100207601 | Method and Apparatus for Monitoring Leakage of a Faraday Cup - A current branch circuit is electrically coupled with a Faraday cup and an operation amplifier separately. The Faraday cup, the current branch circuit and the operation amplifier are formed as a portion of an ion implanter. When the Faraday cup is electrically coupled with a ground through a conductive structure formed by an ion beam received by the Faraday cup, a current flows from the output of the operation amplifier to the current branch circuit to balance another current flow from the current branch circuit through the Faraday cup to the ground. By dynamically monitoring the voltage of the output of the operation amplifier, current flows through the Faraday cup to the ground and through the resistance of the conductive structure can be dynamically monitored. Accordingly, the difference between the ion current measured by the Faraday cup and the real ion current implanted to the wafer can be dynamically acquired to avoid overdosage of the wafer with the ion beam. | 08-19-2010 |
| 20100254063 | STEP DOWN DECHUCKING - A method and an apparatus for dechucking an electrostatic chuck are disclosed. The gas escapes through an opening between a wafer and a chuck in each stage of a multi-stages process. In each stage, during at least a portion of the stage, the chucking voltage is reduced to a value less than the least threshold voltage needed for holding the wafer, so that the wafer is pushed away from the chuck by the gas. Hence, the gas can escape from an opening between the wafer and the chuck, thereby increasing the dechucking rate. By controlling the decrement and/or the duration of the reduced voltage, any potential damages due to the pushed-away wafer can be minimized. | 10-07-2010 |
Victor Chiu-Kit Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080266749 | Scalable integrated circuit high density capacitors - The present invention provides several scalable integrated circuit high density capacitors and their layout techniques. The capacitors are scaled, for example, by varying the number of metal layers and/or the area of the metal layers used to from the capacitors. The capacitors use different metallization patterns to form the metal layers, and different via patterns to couple adjacent metal layers. In embodiments, optional shields are included as the top-most and/or bottom-most layers of the capacitors, and/or as side shields, to reduce unwanted parasitic capacitance. | 10-30-2008 |
| 20090283858 | Scalable Integrated Circuit High Density Capacitors - The present invention provides several scalable integrated circuit high density capacitors and their layout techniques. The capacitors are scaled, for example, by varying the number of metal layers and/or the area of the metal layers used to form the capacitors. The capacitors use different metallization patterns to form the metal layers, and different via patterns to couple adjacent metal layers. In embodiments, optional shields are included as the top-most and/or bottom-most layers of the capacitors, and/or as side shields, to reduce unwanted parasitic capacitance. | 11-19-2009 |
| 20090290283 | Scalable Integrated Circuit High Density Capacitors - The present invention provides several scalable integrated circuit high density capacitors and their layout techniques. The capacitors are scaled, for example, by varying the number of metal layers and/or the area of the metal layers used to from the capacitors. The capacitors use different metallization patterns to form the metal layers, and different via patterns to couple adjacent metal layers. In embodiments, optional shields are included as the top-most and/or bottom-most layers of the capacitors, and/or as side shields, to reduce unwanted parasitic capacitance. | 11-26-2009 |
Walton Fong, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080212235 | DATA RECORDING SLIDER HAVING AN AIR BEARING SURFACE PROVIDING HIGH PRESSURE RELIEF FOR VIBRATION DAMPING - A slider for magnetic data recording. The slider has an air bearing surface with a trailing edge pad that is configured with a series of recesses that damp slider oscillations during use. The series of recesses formed in the trailing pad of the slider reduce slider oscillations by creating localized pressure gradients within the generally high pressure area over the pad. The slider can be configured with a raised primary pad and a secondary raised pad formed on the primary raised pad. A series of recesses formed in the secondary pad prevent slider oscillations, which would otherwise be especially problematic in a slider having such a secondary raised pad and associated higher pressure area thereover. | 09-04-2008 |
| 20100172056 | APPARATUS FOR RETAINING LUBRICANT ON THE DEPOSITED END OF A SLIDER IN A HARD DISK DRIVE - This application discloses a hard disk drive, a head stack assembly, a head gimbal assembly, each including a slider with a deposited end including at least one means for retaining lubricant that tends to accumulate on the deposited end. | 07-08-2010 |