David C Wu

US Patent:

6351013, Feb 26, 2002

Filed:

Jul 13, 1999

Appl. No.:

09/352339

Inventors:

Scott Luning - San Francisco CA
David Wu - San Jose CA
Khanh Tran - San Jose CA

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

H01L 31062

US Classification:

257368, 257372, 257900, 257369, 438595

Abstract:

The capacitance between the gate electrode and the source/drain regions of a semiconductor device is reduced by forming sub-spacers of a low dielectric constant (K) material at the corners of the gate electrode above the source/drain regions. Subsequently, insulating sidewall spacers are formed over the sub-spacers to shield-shallow source/drain regions from subsequent impurity implantations. The resulting semiconductor device exhibits reduced capacitance between the gate electrode and the source/drain regions, while maintaining circuit reliability.

US Patent:

6727558, Apr 27, 2004

Filed:

Feb 15, 2001

Appl. No.:

09/784790

Inventors:

Michael P. Duane - Santa Clara CA
David D. Wu - Austin TX
Massud Aminpur - Dresden, DE
Scott D. Luning - Austin TX

Assignee:

Advanced Micro Devices, Inc. - Austin TX

International Classification:

H01L 21425

US Classification:

257377, 257374, 257510, 257382

Abstract:

A method is provided, the method including forming a gate dielectric above a substrate layer, and forming a gate conductor above the gate dielectric. The method also includes forming at least one dielectric isolation structure in the substrate adjacent the gate dielectric.

US Patent:

6775722, Aug 10, 2004

Filed:

Jul 5, 2001

Appl. No.:

09/899426

Inventors:

David Wu - Sunnyvale CA
Jerry Kuo - San Jose CA

Assignee:

Zarlink Semiconductor V. N. Inc. - Irvine CA

International Classification:

G06F 300

US Classification:

710 53, 710 52, 710 5, 710 6, 710 20, 710 21, 710 29, 710 54

Abstract:

An architecture for data retrieval from a plurality of coupling queues. At least first and second data queues are provided for receiving data thereinto. The data is read from the at least first and second data queues with reading logic, the reading logic reading the data according to a predetermined queue selection algorithm. The data read from by reading logic and forwarded to an output queue.

US Patent:

6784101, Aug 31, 2004

Filed:

May 16, 2002

Appl. No.:

10/146029

Inventors:

Bin Yu - Cupertino CA 95014
David Wu - Austin TX 78759

International Classification:

H01L 2144

US Classification:

438666, 438197, 438198, 438199

Abstract:

A semiconductor device is formed by providing a semiconductor substrate comprising a strained lattice semiconductor layer at an upper surface thereof and having a pre-selected amount of lattice therein, forming a thin buffer/interfacial layer of a low-k dielectric material on the upper surface of the semiconductor substrate, and forming a layer of a high-k dielectric material on the thin buffer/interfacial layer of a low-k dielectric material. Embodiments include forming the thin buffer/interfacial layer and high-k layer at a minimum temperature sufficient to effect formation of the respective dielectric layer without incurring, or at least minimizing, strain relaxation of the strained lattice semiconductor layer.

US Patent:

7650416, Jan 19, 2010

Filed:

Aug 12, 2003

Appl. No.:

10/640459

Inventors:

David Tze-Si Wu - Fremont CA, US
Steven McCanne - Berkeley CA, US

Assignee:

Riverbed Technology - San Francisco CA

International Classification:

G06F 15/16
G06F 15/173

US Classification:

709228, 709227, 709229, 709238, 709239

Abstract:

In a network supporting transactions between clients and servers over a network path having operating characteristics to overcome, data is transported to overcome the operating characteristics using user affinities and dynamic user location information to selectively preload data, or representations, signatures, segments, etc. of data, in order to overcome the one or more operating characteristic. Examples of operating characteristics to overcome include bandwidth limitations, errors and latency. The dynamic location information can be stored in data structures accessible by agents of a data server and the data structures are populated based on user activities with respect to proxies associated with user locations, or the dynamic location information can be obtained implicitly as proxies maintain connections after termination by clients and the use of those maintained connections for preloading of data for the users associated with those clients. The data being preloaded can be protocol-specific data or protocol-independent data.

US Patent:

7853699, Dec 14, 2010

Filed:

Nov 14, 2005

Appl. No.:

11/273861

Inventors:

David Tze-Si Wu - Fremont CA, US
Vivasvat Keswani - Fremont CA, US
Case Larsen - Union City CA, US

Assignee:

Riverbed Technology, Inc. - San Francisco CA

International Classification:

G06F 15/16

US Classification:

709227, 709217

Abstract:

Network proxies reduce server latency in response to series of requests from client applications. Network proxies intercept messages clients and a server. Intercepted client requests are compared with rules. When client requests match a rule, additional request messages are forwarded to the server on behalf of a client application. In response to the additional request messages, the server provides corresponding response messages. A network proxy intercepts and caches the response messages. Subsequent client requests are intercepted by the network application proxy and compared with the cached messages. If a cached response message corresponds with a client request message, the response message is returned to the client application immediately instead of re-requesting the same information from the server. A server-side network proxy can compare client requests with the rules and send additional request messages. The corresponding response messages can be forwarded to a client-side network proxy for caching.

US Patent:

8069225, Nov 29, 2011

Filed:

Aug 12, 2003

Appl. No.:

10/640405

Inventors:

Steven McCanne - Berkeley CA, US
Michael J. Demmer - San Francisco CA, US
Arvind Jain - Santa Clara CA, US
David Tze-Si Wu - Fremont CA, US

Assignee:

Riverbed Technology, Inc. - San Francisco CA

International Classification:

G06F 15/16

US Classification:

709219, 706 21

Abstract:

In a network that conveys requests from clients to servers and responses from servers to clients, a network transaction accelerator for accelerating transactions involving data transfer between at least one client and at least one server over a network comprising a client-side engine, a server-side engine and a transaction predictor configured to predict, based on past transactions, which transactions are likely to occur in the future between the client and server. The transaction predictor might be in the server-side engine, the client-side engine, or both. The client-side engine receives indications of requests from the client, a transaction buffer for storing results of predicted transactions received from the server or the server-side engine ahead of receipt of a corresponding request, and a collator for collating the requests from the client with the stored results or received results, wherein a request and a response that are matched by the collator are identified and the matched response is provided to the client in response to the matched request. The server-side engine receives indications of transactions including requests and responses and conveys requests to the server in response to actual transactions or predicted transactions.

US Patent:

8112763, Feb 7, 2012

Filed:

Nov 29, 2005

Appl. No.:

11/289717

Inventors:

Suhong Ma - Beijing, CN
David W. Wu - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 3/00
G06F 9/44
G06F 9/46
G06F 13/00

US Classification:

719315

Abstract:

A computer-implemented method, apparatus, and computer program product in a data processing environment for transmitting information between a CORBA application executing within a client and a server utilizing HTTP are disclosed. An application that is being executed by a client requests a CORBA IDL stub to invoke a method. The CORBA IDL stub transmits requests to a server utilizing Internet Inter-ORB Protocol (IIOP). An HTTP stub is generated that transmits requests utilizing HTTP. The HTTP stub corresponds to the CORBA IDL stub such that the CORBA IDL stub and the HTTP stub define the same methods. The HTTP stub transmits the request of the CORBA IDL stub to invoke the method to the server utilizing HTTP.