Jonathan P Chang

US Patent:

6580072, Jun 17, 2003

Filed:

May 3, 2000

Appl. No.:

09/564058

Inventors:

Jonathan Cheang-Whang Chang - Mountain View CA
Brian J. Wollard - San Jose CA

Assignee:

Xilinx, Inc. - San Jose CA

International Classification:

H01J 37304

US Classification:

250297, 2504922, 25049221, 250398, 250309, 438618, 438620, 438768, 257700, 257701, 257706

Abstract:

Described are methods of adapting FIB techniques to copper metallization, and to structures that result from the application of such techniques. A method in accordance with the invention can be used to sever copper traces without damaging adjacent material or creating conductive bridges to adjacent traces. Semiconductor devices that employ copper traces typically include a protective passivation layer that protects the copper. This passivation layer is removed to render the copper traces visible to an FIB operator. The copper surface is then oxidized, as by heating the device in air, to form a copper-oxide layer on the exposed copper. With the copper-oxide layer in place, an FIB is used to mill through the copper-oxide and copper layers of a selected copper trace to sever the trace. The copper-oxide layer protects copper surfaces away from the mill site from reactive chemicals used during the milling process. In one embodiment, a copper-oxide layer of at least 40 nanometers thick affords adequate protection.

US Patent:

7091077, Aug 15, 2006

Filed:

Jun 7, 2005

Appl. No.:

11/146514

Inventors:

David Kuan-Yu Liu - Fremont CA, US
Jonathan Cheang-Whang Chang - Mountain View CA, US

Assignee:

Xilinx, Inc. - San Jose CA

International Classification:

H01L 21/336

US Classification:

438197, 257E21327, 257E21623

Abstract:

Polysilicon or other material is directionally trimmed using two layers of photoresist and a photoresist etching process, such as ashing. A first layer of photoresist is patterned on a wafer. Portions of the first patterned photoresist are covered with a second layer of photoresist. The photoresist is trimmed to reduce the size of the exposed portions of the first patterned photoresist without reducing the size of the covered portions of the first patterned photoresist. The second layer of photoresist is removed. The selectively etched patterned first layer of photoresist is used as a process mask to define a structure in the underlying material. In a particular embodiment, the second photoresist covers endcap portions of gate photoresist. Directional trimming reduces the width of a polysilicon gate structure (i. e. gate length) over an active area of an FET, without reducing the length of original first patterned photoresist.

US Patent:

7813350, Oct 12, 2010

Filed:

Oct 23, 2006

Appl. No.:

11/551932

Inventors:

Sumeet Singh - Fremont CA, US
George Varghese - Sunnyvale CA, US
Flavio Giovanni Bonomi - Palo Alto CA, US
Jonathan J. Chang - Cupertino CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

37039532, 37039543

Abstract:

A method and device to process a packet received by a network device is described. The method may comprise analyzing the packet to identify at least one set of a plurality of sets, mapping the at least one set to at least one functional unit, and performing functionality associated with the at least one functional unit. Analyzing the packet to identify at least one of a plurality of sets may comprise determining when the packet includes at least one set identifier, and identifying the at least one set based on the at least one set identifier. A set status identifier may be defined for each set, the set status identifier indicating when set identifiers associated with a corresponding set are detected in the packet. The device may be a router, switch or any other device that processes digital data e. g. , packet data including packets headers, payload or the like.

US Patent:

20130124624, May 16, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/294998

Inventors:

Robert William Cathcart - San Francisco CA, US
Rafael Linden Sagula - Kirkland WA, US
Cameron Alexander Marlow - Menlo Park CA, US
Jonathan Chang - San Francisco CA, US
Siddharth Kar - Palo Alto CA, US
Eric Sun - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Equivalent concepts expressed across multiple domains are matched and associated with a metapage generated by a social networking system. User preferences expressed on multiple domains, represented as pages in a social networking system, may be organized by concept and shared with advertisers, third-party developers, and other users using the metapages generated for the concepts. Aggregated social information may be presented to users viewing a page associated with a metapage. Information presented on external websites may be used to link pages across multiple domains with a metapage generated on the social networking system. Information on other external websites associated with the metapage may be presented as links on the pages associated with the metapage. Feedback from users may be used to include or exclude pages from being associated with a generated metapage. A best page for a concept embodied in multiple pages may be determined using a hierarchy of rules.

US Patent:

20130124625, May 16, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/295000

Inventors:

Robert William Cathcart - San Francisco CA, US
Rafael Linden Sagula - Kirkland CA, US
Cameron Alexander Marlow - Menlo Park CA, US
Jonathan Chang - San Francisco CA, US
Siddharth Kar - Palo Alto CA, US
Eric Sun - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Equivalent concepts expressed across multiple domains are matched and associated with a metapage generated by a social networking system. User preferences expressed on multiple domains, represented as pages in a social networking system, may be organized by concept and shared with advertisers, third-party developers, and other users of the social networking system using the metapages generated for the concepts. Aggregated social information may be presented to users of the social networking system viewing a page associated with a metapage. Information presented on external websites may be used to link pages across multiple domains with a metapage generated on the social networking system, presenting the information on other external websites associated with the metapage as links on the pages associated with the metapage. Feedback from users may be used to include or exclude pages from being associated with a generated metapage.

US Patent:

20130124626, May 16, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/295001

Inventors:

Robert William Cathcart - San Francisco CA, US
Rafael Linden Sagula - Kirkland CA, US
Cameron Alexander Marlow - Menlo Park CA, US
Jonathan Chang - San Francisco CA, US
Siddharth Kar - Palo Alto CA, US
Eric Sun - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Equivalent concepts expressed across multiple domains are matched and associated with a metapage generated by a social networking system. User preferences expressed on multiple domains, represented as pages in a social networking system, may be organized by concept and shared with advertisers, third-party developers, and other users of the social networking system using the metapages generated for the concepts. Aggregated social information may be presented to users of the social networking system viewing a page associated with a metapage. Information presented on external websites may be used to link pages across multiple domains with a metapage generated on the social networking system. A best page may be determined for a concept embodied in multiple pages on the social networking system using a hierarchy of rules. A best page may also be determined for a user based on information about the user.

US Patent:

20130124627, May 16, 2013

Filed:

Nov 11, 2011

Appl. No.:

13/295002

Inventors:

Robert William Cathcart - San Francisco CA, US
Rafael Linden Sagula - Kirkland WA, US
Cameron Alexander Marlow - Menlo Park CA, US
Jonathan Chang - San Francisco CA, US
Siddharth Kar - Palo Alto CA, US
Eric Sun - Palo Alto CA, US

International Classification:

G06F 15/16

US Classification:

709204

Abstract:

Equivalent concepts expressed across multiple domains are matched and associated with a metapage generated by a social networking system. User preferences expressed on multiple domains, represented as pages in a social networking system, may be organized by concept and shared with advertisers, third-party developers, and other users of the social networking system using the metapages generated for the concepts. Aggregated social information may be presented to users of the social networking system viewing a page associated with a metapage. Information presented on external websites may be used to link pages across multiple domains with a metapage generated on the social networking system. Social context information may be provided on a page associated with a metapage for a viewing user that shows expressions of interest by other users on the page and other pages associated with the metapage.

US Patent:

20130260789, Oct 3, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/835276

Inventors:

Jonathan R. Zhang - Palo Alto CA, US
Jonathan D. Chang - Palo Alto CA, US

Assignee:

Groupon, Inc. - Chicago IL

International Classification:

H04W 4/02

US Classification:

4554561

Abstract:

Provided herein are system, methods and computer readable storage media in facilitating the determination of a location of at least one mobile device. In providing such functionality, the system may be configured to, for example, receive contextual data corresponding to a contextual state of a mobile device, determine the location of a mobile device, and transmit the location of the mobile device to at least one other mobile device.