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Floyd, CA
Brian H. Floyd, Sunnyvale, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090161725 | Process-invariant low-quiescent temperature detection circuit - In one embodiment, an integrated circuit is provided for detecting when a temperature reaches a specified value. The circuit includes a differential circuit block having first and second transistors. A control terminal of the first transistor is coupled to a first voltage source, and a control terminal of the second transistor is coupled to a second voltage source. The second transistor has an area larger than the first transistor. The differential circuit block compares a first current flowing into the first transistor and a second current flowing into the second transistor. The differential circuit block outputs a signal to indicate that the specified temperature has been reached when the first current equals the second current according to specified values of the first voltage source, the second voltage source, and the ratio of the areas of the first and second transistors. A single-ended circuit block amplifies the output signal of the differential circuit block to a predetermined amplitude. | 06-25-2009 |
Brian Harold Floyd, Sunnyvale, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110050328 | Methods and Circuits for a Low Input Voltage Charge Pump - A charge pump circuit comprises a plurality of subcircuits, where the subcircuits are connected to each other in a single or a dual array having a repeating pattern. Each of the subcircuits comprises one or more of the following: an X-channel device having an X-gate terminal, an X-source terminal and an X-drain terminal, a Y-channel device having a Y-gate terminal, a Y-source terminal and a Y-drain terminal, and a capacitor; wherein a first end of the capacitor, the X-drain terminal, and the Y-drain terminal are connected with each other to form the common drain terminal; and wherein a second end of the capacitor is the clock terminal. | 03-03-2011 |
| 20110163796 | Load Switch System Driven by a Charge Pump - A method for operating a load switch, wherein a charge pump drives a gate of the load switch, comprises the steps of: controlling a charge pump frequency as a function of states of the load switch; generating a charge pump output as a function of the charge pump frequency; and providing the charge pump output to the gate of the load switch. | 07-07-2011 |
Kirby Floyd, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080286444 | In Situ Substrate Holder Leveling Method and Apparatus - Embodiments of the present invention are directed to adjusting the spacing between the substrate support and the faceplate of the gas distribution member to achieve improved uniformity of the layer formed on the substrate. One embodiment of the present invention is directed to a method of adjusting a spacing between a gas distribution member and a substrate support disposed generally opposite from the gas distribution member, wherein the substrate support is configured to support a substrate on which to form a layer with improved thickness uniformity. The method comprises forming a layer on the substrate disposed on the substrate support; measuring a thickness of the layer on the substrate; and calculating differences in thickness between a reference location on the substrate and a plurality of remaining locations on the substrate. The method further comprises computing spacing adjustment amounts for the remaining locations relative to the reference location based on the differences in thickness between the reference location and the remaining locations. The spacing adjustment amount is positive to increase the spacing between the substrate support at the location and the gas distribution member if the thickness is greater at the location than at the reference location. The spacing adjustment amount is negative to decrease the spacing between the substrate support at the location if the thickness is smaller at the location than at the reference location. | 11-20-2008 |
| 20090031957 | HIGH RESOLUTION SUBSTRATE HOLDER LEVELING DEVICE AND METHOD - A method for adjusting a spacing of a leveling plate from a chamber body comprises attaching a mounting stud that includes a stud threaded surface to the chamber body. An adjustment screw is provided that has a first threaded surface threadingly engaged with the stud threaded surface. A bushing is provided that has a bushing threaded surface threadingly engaged with a second threaded surface of the adjustment screw. The bushing is movably coupled to the leveling plate. Coarse adjustment of the spacing between the leveling plate and the chamber body is made by rotating the adjustment screw with respect to the mounting stud. The bushing is fixed to the leveling plate. Fine adjustment of the spacing between the leveling plate and the chamber body is made by rotating the adjustment screw with respect to the mounting stud and the bushing. | 02-05-2009 |
Kirby H. Floyd, San Jose, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090120368 | ROTATING TEMPERATURE CONTROLLED SUBSTRATE PEDESTAL FOR FILM UNIFORMITY - Substrate processing systems are described. The systems may include a processing chamber, and a substrate support assembly at least partially disposed within the chamber. The substrate support assembly is rotatable by a motor yet still allows electricity, cooling fluids, gases and vacuum to be transferred from a non-rotating source outside the processing chamber to the rotatable substrate support assembly inside the processing chamber. Cooling fluids and electrical connections can be used to raise or lower the temperature of a substrate supported by the substrate support assembly. Electrical connections can also be used to electrostatically chuck the wafer to the support assembly. A rotary seal or seals (which may be low friction O-rings) are used to maintain a process pressure while still allowing substrate assembly rotation. Vacuum pumps can be connected to ports which are used to chuck the wafer. The pumps can also be used to differentially pump the region between a pair of rotary seals when two or more rotary seals are present. | 05-14-2009 |
| 20090120584 | COUNTER-BALANCED SUBSTRATE SUPPORT - A semiconductor processing system is described. The system includes a processing chamber having an interior capable of holding an internal chamber pressure below ambient atmospheric pressure. The system also includes a pumping system coupled to the chamber and adapted to remove material from the processing chamber. The system further includes a substrate support pedestal, where the substrate support pedestal is rigidly coupled to a substrate support shaft extending through a wall of the processing chamber. A bracket located outside the processing chamber is provided which is rigidly and sometimes rotatably coupled to the substrate support shaft. A motor coupled to the bracket can be actuated to vertically translate the substrate support pedestal, shaft and bracket from a first position to a second position closer to a processing plate. A piston mounted on an end of the bracket provides a counter-balancing force to a tilting force, where the tilting force is generated by a change in the internal chamber pressure and causes a deflection in the position of the bracket and the substrate support. The counter-balancing force reduces the deflection of the bracket and the substrate support. | 05-14-2009 |
Michael Floyd, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090132721 | Chunk Header Incorporating Binary Flags and Correlated Variable-Length Fields - Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with flags associated with the content data of the multimedia files. Through the use of the flags, playback of the content is enhanced without significantly increasing the file size of the multimedia file. | 05-21-2009 |
Michel Floyd, Redwood City, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090083704 | System and method for expediting information display - Exemplary systems and methods for expediting information display on a user device are provided. In exemplary embodiments, a request for information is received. An application server then generates and provides source code for a web page containing the requested information. In exemplary embodiments, a removal module is returned with the source code for the first web page. The removal module is configured to remove unnecessary elements from subsequent source code in order to expedite loading and displaying of subsequent web pages on the user device. In some embodiments, the web page comprises a syndicated web page within a window of a main web page. | 03-26-2009 |
Phil Floyd, Sunnyvale, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080259971 | Method for improving high frequency operation of a vertical cavity surface emitting laser (VCSEL) with monolithically integrated bridge arm - A vertical cavity laser apparatus is provided. In one embodiment, the apparatus includes an electrically responsive substrate; a support block positioned on the electrically responsive substrate; a bridge arm structure coupled to the support block, the structure having a base; a laser active area on the bridge arm structure, a tuning pad on the bridge arm structure, a laser bond pad on the bridge arm structure with traces connecting the laser bond pad to the laser active area and base. The traces are positioned and shaped to be symmetric to avoid problems due to the asymmetry of the injection current. Additionally, in this embodiment, the laser bond pad is kept at a height of the base in order to minimize device capacitance and the traces are also kept at the height of the base. Methods are also provided whereby impedance matching and high speed performance can be accomplished irregardless of the mechanical configuration of the bridge arm structure. | 10-23-2008 |
| 20100061417 | Method for reducing capacitance and improving high frequency performance in vertical cavity surface emitting lasers (VCSELs) - A VCSEL structure is provided. The VCSEL structure comprises a substrate consisting of a III-V material. The structure may also include one or more conducting layers positioned on said substrate. There may be void spaces positioned between portions of the conducting layers to electrically isolate the portions. A method for fabricating the VCSEL structure is also provided. | 03-11-2010 |
| 20110096801 | METHOD FOR REDUCING CAPACITANCE AND IMPROVING HIGH FREQUENCY PERFORMANCE IN VERTICAL CAVITY SURFACE EMITTING LASERS (VCSELS) - A VCSEL structure is provided. The VCSEL structure comprises a substrate. The structure may also include one or more conducting layers positioned on the substrate. There may be void spaces positioned between portions of the conducting layers to electrically isolate the portions. A method for fabricating the VCSEL structure is also provided. | 04-28-2011 |
Philip Floyd, Redwood City, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090071932 | ETCHING PROCESSES USED IN MEMS PRODUCTION - The efficiency of an etching process may be increased in various ways, and the cost of an etching process may be decreased. Unused etchant may be isolated and recirculated during the etching process. Etching byproducts may be collected and removed from the etching system during the etching process. Components of the etchant may be isolated and used to general additional etchant. Either or both of the etchant or the layers being etched may also be optimized for a particular etching process. | 03-19-2009 |
| 20090071933 | ETCHING PROCESSES USED IN MEMS PRODUCTION - The efficiency of an etching process may be increased in various ways, and the cost of an etching process may be decreased. Unused etchant may be isolated and recirculated during the etching process. Etching byproducts may be collected and removed from the etching system during the etching process. Components of the etchant may be isolated and used to general additional etchant. Either or both of the etchant or the layers being etched may also be optimized for a particular etching process. | 03-19-2009 |
| 20090219605 | OPTICAL INTERFERENCE DISPLAY PANEL AND MANUFACTURING METHOD THEREOF - A first electrode and a sacrificial layer are sequentially formed on a substrate, and then first openings for forming supports inside are formed in the first electrode and the sacrificial layer. The supports are formed in the first openings, and then a second electrode is formed on the sacrificial layer and the supports, thus forming a micro electro mechanical system structure. Afterward, an adhesive is used to adhere and fix a protection structure to the substrate for forming a chamber to enclose the micro electro mechanical system structure, and at least one second opening is preserved on sidewalls of the chamber. A release etch process is subsequently employed to remove the sacrificial layer through the second opening in order to form cavities in an optical interference reflection structure. Finally, the second opening is closed to seal the optical interference reflection structure between the substrate and the protection structure. | 09-03-2009 |
Philip Don Floyd, Redwood City, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080279498 | MEMS STRUCTURES, METHODS OF FABRICATING MEMS COMPONENTS ON SEPARATE SUBSTRATES AND ASSEMBLY OF SAME - Methods of fabricating a microelectromechanical systems (MEMS) device with reduced masking and MEMS devices formed by the same are disclosed. In one embodiment, a MEMS device is fabricated by laminating a front substrate and a carrier, each of which has components preformed thereon. The front substrate is provided with stationary electrodes formed thereover. A carrier including movable electrodes formed thereover is attached to the front substrate. The carrier of some embodiments is released after transferring the movable electrodes to the front substrate. In other embodiments, the carrier stays over the front substrate, and serves as a backplate for the MEMS device. Features are formed by deposition and patterning, by embossing, or by patterning and etching. In some embodiments in which the MEMS device serves as an interferometric modulator, the front substrate is also provided with black masks to prevent or mitigate bright areas in the actuated state of the MEMS device. Static interferometric modulators can also be formed by shaping or preformation and lamination. The methods not only reduce the manufacturing costs, but also provide a higher yield. The resulting MEMS devices can trap smaller volumes between laminated substrates and are less susceptible to pressure variations and moisture leakage. | 11-13-2008 |
| 20090009444 | MEMS DEVICES HAVING IMPROVED UNIFORMITY AND METHODS FOR MAKING THEM - Disclosed is a microelectromechanical system (MEMS) device and method of manufacturing the same. In one aspect, MEMS such as an interferometric modulator include one or more elongated interior posts and support rails supporting a deformable reflective layer, where the elongated interior posts are entirely within an interferometric cavity and aligned parallel with the support rails. In another aspect, the interferometric modulator includes one or more elongated etch release holes formed in the deformable reflective layer and aligned parallel with channels formed in the deformable reflective layer defining parallel strips of the deformable reflective layer. | 01-08-2009 |
| 20100182675 | METHODS OF FABRICATING MEMS WITH SPACERS BETWEEN PLATES AND DEVICES FORMED BY SAME - Methods of fabricating a microelectromechanical systems (MEMS) device with spacers between plates and MEMS devices formed by the same are disclosed. In one embodiment, a MEMS device is fabricated by laminating a front substrate and a carrier, each of which has components preformed thereon. The front substrate is provided with stationary electrodes formed thereover. A carrier including movable electrodes formed thereover is attached to the front substrate. The carrier of some embodiments is released after transferring the movable electrodes to the front substrate. In other embodiments, the carrier stays over the front substrate, and serves as a backplate for the MEMS device. Features are formed by deposition and patterning, by embossing, or by patterning and etching. Spacers are provided between the front substrate and the backplate to maintain a gap therebetween. The methods not only reduce the manufacturing costs, but also provide a higher yield. The resulting MEMS devices can trap smaller volumes between laminated substrates and are less susceptible to pressure variations and moisture leakage. | 07-22-2010 |
| 20100219155 | EQUIPMENT AND METHODS FOR ETCHING OF MEMS - Etching equipment and methods are disclosed herein for more efficient etching of sacrificial material from between permanent MEMS structures. An etching head includes an elongate etchant inlet structure, which may be slot-shaped or an elongate distribution of inlet holes. A substrate is supported in proximity to the etching head in a manner that defines a flow path substantially parallel to the substrate face, and permits relative motion for the etching head to scan across the substrate. | 09-02-2010 |
Steven A. Floyd, Petaluma, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110005373 | Non-Lethal Restraint Device With Diverse Deployability Applications - An immobilization device and method of restraining vehicles, persons and animals uses tendrils attached to various devices to engage the target. The immobilization device, system and method includes a housing containing launchable tendrils that are launched from the housing by a propellant. The tendrils may be attached to straps or other elements carried by the immobilization device. The tendrils will engage the target and restrain it if it is a vehicle such as a car, truck, boat, submarine, or like vehicle. In stopping a person or animal the tendrils will deliver a marking package, a shocking package or a snare package to mark, shock or snare the target. Straps may be pulled off the housing leaving the housing near the point of deployment. | 01-13-2011 |
| 20110030540 | NON-LETHAL RESTRAINT DEVICE WITH DIVERSE DEPLOYABILITY APPLICATIONS - An immobilization device and method of restraining vehicles, persons and animals uses tendrils attached to various devices to engage the target. The immobilization device, system and method includes a housing containing launchable tendrils that are launched from the housing by a propellant. The tendrils may be attached to straps or other elements carried by the immobilization device. The tendrils will engage the target and restrain it if it is a vehicle such as a car, truck, boat, submarine, or like vehicle. In stopping a person or animal the tendrils will deliver a marking package, a shocking package or a snare package to mark, shock or snare the target. Straps may be pulled off the housing leaving the housing near the point of deployment. | 02-10-2011 |