Chin Hsien Chang

US Patent:

7542820, Jun 2, 2009

Filed:

Sep 28, 2006

Appl. No.:

11/536582

Inventors:

Chung-Ho Huang - San Jose CA, US
Shih-Jeun Fan - San Jose CA, US
Chin Chuan Chang - Los Altos CA, US
Nicolas Bright - San Jose CA, US

Assignee:

Lam Research Corporation - Fremont CA

International Classification:

G06F 19/00

US Classification:

700104

Abstract:

A method for affecting a creation of a recipe for processing a substrate in a processing system. The method includes providing a best-known method driven recipe editor. The best-known method driven recipe editor incorporates best-known methods (BKMs), which are best practice specifications for the recipe. The method also includes creating a plurality of BKM modules based on the BKMs for the recipe. The method further includes defining rules for parameters in the plurality of BKM modules. The rules are propagated by the BKMs. The methods moreover includes creating a BKM driven recipe by employing the best-known method driven recipe editor to enter values for the parameters within the guidelines of BKM rules.

US Patent:

8427126, Apr 23, 2013

Filed:

Nov 30, 2009

Appl. No.:

12/627912

Inventors:

Hao Peng - Sunnyvale CA, US
Chin Chang - Agoura Hills CA, US

Assignee:

Semtech Corporation - Camarillo CA

International Classification:

G05F 1/575

US Classification:

323283, 323284

Abstract:

A system and method for controlling a digital pulse-width modulated power converter achieves a fast large-signal transient response while maintaining a slow response near the steady-state operating point in order to assure stability and to reduce the system's susceptibility to noise. Digital output error samples are processed through a gain scheduling block that applies a non-linear gain function to produce a weak loop response when the system is near its steady-state equilibrium point and a strong loop response when large transients are encountered. The resulting system maintains a fast transient response to large error signals while reducing noise and loop jittering and assuring loop stability.

US Patent:

54200130, May 30, 1995

Filed:

Aug 2, 1993

Appl. No.:

8/101259

Inventors:

Philippe Pouletty - Atherton CA
Peter Chun - South San Francisco CA
Chin H. Chang - Los Altos CA

Assignee:

Sangstat Medical Corporation - Menlo Park CA

International Classification:

G01N 33543
G01N 33577

US Classification:

435 724

Abstract:

Methods and compositions are provided for detecting HLA polymorphs where distinguishing antibodies are not readily available. Cross-reactive antibodies are employed, where one cross-reacts with the HLA of interest and other alleles, and the other cross-reacts with one of the other alleles, but not with the HLA of interest. By appropriate protocols and controls, the polymorph of interest may be detected.