Henry Shinghua Chen

US Patent:

6580156, Jun 17, 2003

Filed:

Apr 4, 2002

Appl. No.:

10/115013

Inventors:

Akira Ito - Irvine CA
Henry Kuoshun Chen - Irvine CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01L 2358

US Classification:

257665, 257529, 257173, 257209, 438215

Abstract:

An integrated fuse has regions of different doping located within a fuse neck. The integrated fuse includes a polysilicon layer and a silicide layer. The polysilicon layer includes first and second regions having different types of dopants. In one example, the first region has an N-type dopant and the second region has a P-type dopant. The polysilicon layer can also include a third region in between the first and second regions, which also has a different dopant. During a fusing event, a distribution of temperature peaks around the regions of different dopants. By locating regions of different dopants within the fuse neck, agglomeration of the silicide layer starts reliably within the fuse neck (for example, at or near the center of the fuse neck) and proceeds toward the contact regions. An improved post fuse resistance distribution and an increased minimum resistance value in the post fuse resistance distribution is realized compared to conventional polysilicon fuses.

US Patent:

6618010, Sep 9, 2003

Filed:

Nov 14, 2001

Appl. No.:

09/994989

Inventors:

G. Dickey Arndt - Friendswood TX
Phong H. Ngo - Friendswood TX
Henry A. Chen - Houston TX
Chau T. Phan - Houston TX
Brian A. Bourgeois - Houston TX
John Dusl - Houston TX
Brent W. Hill - San Diego CA

Assignee:

United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

G01S 302

US Classification:

342465, 342442, 342463

Abstract:

System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter. In a preferred embodiment, a phase difference between the transmitter and receiver is extracted utilizing a noncoherent demodulator in the receiver. The receiver includes an antenna array with three antenna elements, which preferably are patch antenna elements spaced apart by one-half wavelength. Three receiver channels are preferably utilized for simultaneously processing the received signal from each of the three antenna elements. Multipath transmission paths for each of the three receiver channels are indexed so that comparisons of the same multipath component are made for each of the three receiver channels. The phase difference for each received signal is determined by comparing only the magnitudes of received and stored modulation signals to determine a winning modulation symbol.

US Patent:

6770948, Aug 3, 2004

Filed:

Apr 9, 2003

Appl. No.:

10/409584

Inventors:

Akira Ito - Irvine CA
Henry Kuoshun Chen - Irvine CA

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01L 2900

US Classification:

257529, 257173, 257209, 257665, 257910, 1022024, 3612751, 438467, 438600, 438601

Abstract:

An integrated fuse has regions of different doping located within a fuse neck. The integrated fuse includes a polysilicon layer and a silicide layer. The polysilicon layer includes first and second regions having different types of dopants. In one example, the first region has an N-type dopant and the second region has a P-type dopant. The polysilicon layer can also include a third region in between the first and second regions, which also has a different dopant. During a fusing event, a distribution of temperature peaks around the regions of different dopants. By locating regions of different dopants within the fuse neck, agglomeration of the silicide layer starts reliably within the fuse neck (for example, at or near the center of the fuse neck) and proceeds toward the contact regions. An improved post fuse resistance distribution and an increased minimum resistance value in the post fuse resistance distribution is realized compared to conventional polysilicon fuses.

US Patent:

6903685, Jun 7, 2005

Filed:

Jul 1, 2003

Appl. No.:

10/612562

Inventors:

G. Dickey Arndt - Friendswood TX, US
Phong H. Ngo - Friendswood TX, US
Henry A. Chen - Houston TX, US
Chau T. Phan - Houston TX, US
Brian A. Bourgeois - Houston TX, US
John Dusl - Houston TX, US
Brent W. Hill - San Diego CA, US

Assignee:

The United States of America as represented by the National Aeronautics and Space Administration - Washington DC

International Classification:

G01S001/08
G01S005/04
H01Q001/00

US Classification:

342465, 342370, 342442, 342463

Abstract:

System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter. In a preferred embodiment, a phase difference between the transmitter and receiver is extracted utilizing a noncoherent demodulator in the receiver. The receiver includes antenna array with three antenna elements, which preferably are patch antenna elements aced apart by one-half wavelength. Three receiver channels are preferably utilized for simultaneously processing the received signal from each of the three antenna elements. Multipath transmission paths for each of the three receiver channels are indexed so that comparisons of the same multipath component are made for each of the three receiver channels. The phase difference for each received signal is determined by comparing only the magnitudes of received and stored modulation signals to determine a winning modulation symbol.

US Patent:

6950355, Sep 27, 2005

Filed:

Dec 18, 2001

Appl. No.:

10/020208

Inventors:

Surya Battacharya - Irvine CA, US
Ming Chen - Mission Viejo CA, US
Liming Tsau - Irvine CA, US
Henry Chen - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

G11C007/00

US Classification:

365201, 365154

Abstract:

A method for testing a semiconductor wafer. An array of probes is coupled to the semiconductor wafer. Then a voltage difference is applied across a plurality of adjacent metal line pairs (e. g. , wordline and/or bitline pairs) of one or more SRAM arrays of at least one die. Application of the voltage difference induces failure of metal stringers or defects between the adjacent lines. Additionally, the voltage can be applied across respective pairs of substantially all parallel metal lines of the one or more SRAM arrays of more that one die of the semiconductor wafer.

US Patent:

7009832, Mar 7, 2006

Filed:

Mar 14, 2005

Appl. No.:

11/078511

Inventors:

Henry KuoShun Chen - Irvine CA, US
Akira Ito - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01G 4/228

US Classification:

3613061, 361309, 361329, 257306, 257310, 29 2541

Abstract:

A capacitor including a first and second component capacitor structure disposed on a substrate. A component capacitor structure includes an upright arm, a transverse arm, and a via. The upright arm has a top end and a bottom end that extend at substantially right angles to a central axis of the upright arm. The transverse arm has a left and right end that extend at substantially right angles to a central axis of the transverse arm. The upright arm and the transverse arm intersect to form a cross-like pattern and the top, bottom, left and right ends all extend in the same rotary direction. The via is electrically coupled to an area of intersection of the upright and transverse arms.

US Patent:

7009891, Mar 7, 2006

Filed:

May 19, 2005

Appl. No.:

11/132335

Inventors:

Vincent Chen - Newport Coast CA, US
Henry Chen - Irvine CA, US
Liming Tsau - Irvine CA, US
Jay Shiau - Irvine CA, US
Surya Battacharya - Irvine CA, US
Akira Ito - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01L 29/00
G11C 7/00

US Classification:

36518901, 257530, 257532, 438131, 438467, 438600, 3652257

Abstract:

A one-time programming memory element, capable of being manufactured in a 0. 13 μm or below CMOS technology, having a capacitor, or transistor configured as a capacitor, with an oxide layer capable of passing direct gate tunneling current. Also included is a write switch, having first and second switches coupled to the capacitor, and a read switch also coupled to the capacitor. The capacitor/transistor is one-time programmable as an anti-fuse by application of a program voltage across the oxide layer via the write switch to cause direct gate tunneling current to rupture the oxide layer to form a conductive path having resistance of approximately hundreds of ohms or less.

US Patent:

7151660, Dec 19, 2006

Filed:

Jan 4, 2006

Appl. No.:

11/324221

Inventors:

Henry KuoShun Chen - Irvine CA, US
Akira Ito - Irvine CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H01G 4/228

US Classification:

3613061, 361309, 361329, 257306, 257310, 29 2541

Abstract:

A capacitor including a first and second component capacitor structure disposed on a substrate. A component capacitor structure includes a first arm, a second arm, and a via. The first arm has a first end and a second end. The second arm has a third end and a fourth end. The first arm and the second arm intersect and the first, second, third and fourth ends all extend in the same rotary direction. The via is electrically coupled to an area of intersection of the first and second arms.