David A Chen

US Patent:

6363419, Mar 26, 2002

Filed:

Apr 5, 1999

Appl. No.:

09/286499

Inventors:

Bruce K. Martin, Jr. - Palo Alto CA
David A. Chen - San Carlos CA
Lawrence M. Stein - San Jose CA
Bruce V. Schwartz - San Mateo CA
Gregory A. Heumann - San Mateo CA

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

G06F 1300

US Classification:

709219, 709313, 709328

Abstract:

A system for displaying idle content information on wireless computing devices during idle times is disclosed. The idle content information displayed on the wireless computing device might display the network operators customer support telephone number or advertisements. In one embodiment, a browser program within the wireless computing device is used to display other idle content information to the user during such time when the wireless computing device is idle. The browser program may be modified to support looping content, interaction with idle displays, automatic scrolling, and automatic updating of idle content information.

US Patent:

6693043, Feb 17, 2004

Filed:

Sep 20, 2002

Appl. No.:

10/251178

Inventors:

Senzi Li - San Jose CA
Helmuth Treichel - Milpitas CA
Kirk Ostrowski - San Jose CA
Chevan Goonetilleke - Hayward CA
Jim Su - Cupertino CA
David L. Chen - San Jose CA

Assignee:

Novellus Systems, Inc. - San Jose CA

International Classification:

H01L 21302

US Classification:

438725, 438706

Abstract:

A unique photoresist strip sequence using a downstream plasma system is described. The sequence can include a RF directional plasma alone, downstream plasma alone or combine both RF plasma and downstream plasma together. The process sequence can be a single step or multiple steps, which produce high strip rates while maintaining the dielectric properties of the film. The process can be an oxidizing process carried out at low temperature and low pressure, which reduces the reactivity of the oxygen with the low-k film. Furthermore, by adding a small percentage of an additive gas, such as a fluorine-containing gas, to the plasma, the inorganic residues from the strip process are removed, leaving a clean film cleared of photoresist and residue.

US Patent:

6781745, Aug 24, 2004

Filed:

Sep 11, 2002

Appl. No.:

10/242335

Inventors:

Jerry Chung - Mountain View CA
David Chen - Buena Park CA

Assignee:

Sipix Imaging, Inc. - Milpitas CA

International Classification:

G02B 2600

US Classification:

359296, 359254, 359316, 345107, 345108, 345111, 430 35, 252572

Abstract:

An electrophoretic display comprising at least one in-plane gating electrode. The gating electrode(s) provide a gating effect, which raises the effective threshold voltage to prevent the undesired movement of the charged particles in the cells. The design of the invention can be manufactured using low cost materials by efficient processes.

US Patent:

6806995, Oct 19, 2004

Filed:

Oct 28, 2002

Appl. No.:

10/282444

Inventors:

Jerry Chung - Mountain View CA
David Chen - Buena Park CA

Assignee:

SIPIX Imaging, Inc. - Milpitas CA

International Classification:

G02B 2600

US Classification:

359296, 359271

Abstract:

An electrophoretic display having at least one holding electrode is disclosed. The display comprises a plurality of electrophoretic cells filled with charged particles dispersed in a dielectric solvent. Each said cell is positioned between a top electrode layer and a bottom electrode layer. The top electrode layer comprises at least one driving electrode positioned over more than one cell. The bottom electrode layer comprises at least one driving electrode positioned under more than one cell. The display further comprises a holding electrode located in the bottom electrode layer. The display may further comprise a colored background located under and visible through the bottom electrode layer.

US Patent:

6855225, Feb 15, 2005

Filed:

Jan 24, 2003

Appl. No.:

10/351032

Inventors:

David Lee Chen - San Jose CA, US
Vincent Bernard Decaux - San Francisco CA, US

Assignee:

Novellus Systems, Inc. - San Jose CA

International Classification:

C23C016/00
C23F001/00

US Classification:

15634548, 118723 I, 31511151

Abstract:

A plasma source for use in, for example, semiconductor processing contains a radio-frequency generator, an impedance matching network, and a coil that encloses a tube. The coil is bifilar, i. e. , the turns of one are interlaced with the turns of a second winding. The matching network supplies only a single coil in the plasma source, unlike conventional arrangements wherein a single matching network supplies multiple coils in the plasma source.

US Patent:

6867086, Mar 15, 2005

Filed:

Mar 13, 2003

Appl. No.:

10/389164

Inventors:

David Chen - East Palo Alto CA, US
Vishal Gauri - San Jose CA, US
George D. Papasouliotis - Cupertino CA, US

Assignee:

Novellus Systems, Inc. - San Jose CA

International Classification:

H01L021/338
H01L021/336
H01L021/76
H01L021/31
H01L021/439

US Classification:

438219, 438295, 438404, 438787, 438788

Abstract:

High density plasma chemical vapor deposition and etch back processes that can fill high aspect ratio (typically at least 5:1, for example 6:1), narrow width (typically sub 0. 13 micron, for example 0. 1 micron or less) gaps with significantly reduced incidence of voids or weak spots are provided. This deposition part of the process may involve the use of any suitable high density plasma chemical vapor deposition (HDP CVD) chemistry. The etch back part of the process involves an integrated multi-step (for example, two-step) procedure including an anisotropic dry etch followed by an isotropic dry etch. The all dry deposition and etch back process in a single tool increases throughput and reduces handling of wafers resulting in more efficient and higher quality gap fill operations.

US Patent:

6968216, Nov 22, 2005

Filed:

Jul 31, 2001

Appl. No.:

09/919762

Inventors:

David Chen - San Carlos CA, US
Jared Oberhaus - Palo Alto CA, US

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

H04B001/00

US Classification:

455567, 455566

Abstract:

Improved techniques for controlling notification characteristics for wireless communication devices are disclosed. One aspect of the improved techniques pertains to timer-based notification control for wireless communication devices. Another aspect of the improved techniques pertains to calendar-based notification control for wireless communication devices. Still another aspect of the invention pertains to graphical user interfaces that can be utilized to set or monitor notification characteristics for wireless communication devices. The improved techniques are particularly suitable for use with wireless communication devices having constrained keypads and wireless browsers that display documents (e. g. , such as markup language documents) or messages to users of the wireless communication devices.

US Patent:

7020685, Mar 28, 2006

Filed:

Aug 16, 2000

Appl. No.:

09/640902

Inventors:

David A. Chen - San Carlos CA, US
Piyush Patel - San Jose CA, US

Assignee:

Openwave Systems Inc. - Redwood City CA

International Classification:

G06F 15/16
H04Q 7/20

US Classification:

709204, 455422, 455466, 455408, 455403, 455406

Abstract:

A method and apparatus for providing hypermedia content maintained remotely on a network to a wireless device without a browser are described. A Short Message Service (SMS) request for Internet-based content is received from the wireless device at a proxy server, via an SMS Center (SMSC). The SMS request is transmitted to the SMSC on a wireless network. The proxy server transcodes the SMS request from a character set of the SMSC to a character set of an application and extracts a keyword from the trancoded request. The proxy server maintains a mapping of keywords to URLs. The proxy server looks up the extracted keyword in the keyword-to-URL mapping to identify the URL of an application associated with the keyword. The proxy server constructs an HTTP POST operation containing the keyword and the URL, and submits the HTTP POST operation to the application over a wireline network such as the Internet. Upon receiving an HTTP response containing the requested content from the application in response to the POST operation, the proxy server extracts the content from the HTTP response.