Jin Qiu

7244970, Jul 17, 2007

Dec 22, 2004

11/020507

Adrian I. Cogan - Redwood City CA, US
Jin Qiu - San Francisco CA, US
Richard A. Blanchard - Los Altos CA, US

Tyco Electronics Corporation - Middletown PA

H01L 29/72

257173, 257355

A two-terminal barrier controlled TVS diode has a depletion region barrier blocking majority carrier flow through the channel region at the vicinity of the cathode region at bias levels below the predetermined clamping voltage applied between the anode electrode and the cathode electrode, and may be arranged such that the anode region provides conductivity modulation by injecting minority carriers into the channel region during conduction of the semiconductor structure. In presently preferred form the majority carriers are electrons and the minority carriers are holes. Fabrication methods are described.

7544544, Jun 9, 2009

Jul 17, 2007

11/879424

Adrian I. Cogan - Redwood City CA, US
Jin Qiu - Lake Forest CA, US
Richard A. Blanchard - Los Altos CA, US

Tyco Electronics Corporation - Middletown PA

H01L 21/332

438133

A two-terminal barrier controlled TVS diode has a depletion region barrier blocking majority carrier flow through the channel region at the vicinity of the cathode region at bias levels below the predetermined clamping voltage applied between the anode electrode and the cathode electrode, and may be arranged such that the anode region provides conductivity modulation by injecting minority carriers into the channel region during conduction of the semiconductor structure. In presently preferred form the majority carriers are electrons and the minority carriers are holes. Fabrication methods are described.

8367451, Feb 5, 2013

Jul 23, 2008

12/178563

Jin Qiu - Sunnyvale CA, US

Wispry, Inc. - Irvine CA

H01L 21/00

438 53, 438619, 257E21495

Methods and structures for fabricating MEMS devices on compliant layers are provided. In particular, disclosed are methods and structures that can include the use of a sacrificial layer composed of a material having material properties relative to one or more other layers. These methods and structures can reduce final device shape sensitivity to process parameters, deposition temperature differences, specific material, time, and/or geometry. Further, such methods and structures can improve the final as-built shape of released devices, reduce variability in the as-built shape, eliminate decoupling of the deposited layers from the substrate, and reduce variability across a product array, die, or wafer.

20120125104, May 24, 2012

Sep 30, 2011

13/249902

Jin Qiu - Sunnyvale CA, US
Joe Seeger - Menlo Park CA, US
Alexander Castro - San Francisco CA, US
Igor Tchertkov - Pleasanton CA, US
Richard Li - Mountain View CA, US

InvenSense, Inc. - Sunnyvale CA

G01P 15/125
G01P 15/00

7351432, 7351416

Described herein is an accelerometer that can be sensitive to acceleration, but not anchor motion due to sources other than acceleration. The accelerometer can employ a set of electrodes and/or transducers that can register motion of the proof mass and support structure and employ and output-cancelling mechanism so that the accelerometer can distinguish between acceleration and anchor motion due to sources other than acceleration. For example, the effects of anchor motion can be cancelled from an output signal of the accelerometer so that the accelerometer exhibits sensitivity to only acceleration.

20140266170, Sep 18, 2014

Mar 13, 2014

14/208222

- San Jose CA, US
Jin Qiu - Sunnyvale CA, US
Matthew Julian Thompson - Beaverton OR, US

Invensense, Inc. - San Jose CA

G01R 33/02
B81B 7/02
G01P 15/02

324227, 73509

A MEMS device including a first proof mass, a first magnetized magnetic material disposed partially on a surface of the first proof mass, a first spring anchored to a substrate to support the first proof mass, and a first sensing element coupled to the first proof mass and operable to sense the motion of the first proof mass caused by an ambient acceleration. The MEMS device further includes a second sensing element coupled to the first proof mass and operable to sense the motion of the first proof mass caused by an ambient magnetic field