Ping Li

US Patent:

6727177, Apr 27, 2004

Filed:

Oct 18, 2001

Appl. No.:

10/035704

Inventors:

Wilbur G. Catabay - Saratoga CA
Zhihai Wang - Sunnyvale CA
Ping Li - San Jose CA

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H01L 2144

US Classification:

438687, 438627, 438628, 438643, 438644

Abstract:

Embodiments of the invention include a method for forming a copper interconnect having a bi-layer copper barrier layer. The method involves providing a substrate having an insulating layer with an opening therein configured to receive an inlaid conducting structure. A copper seed layer is formed on the insulating layer and in the opening. The seed layer is implanted with barrier material ions to form an implanted seed layer. Upon the implanted seed layer is formed a bulk copper-containing layer. The substrate is then annealed so that barrier material ions migrate through the seed layer to an interface between the seed layer and the insulating layer to form a final barrier layer. The barrier material can include palladium, chromium, tantalum, magnesium, and molybdenum.

US Patent:

6965620, Nov 15, 2005

Filed:

Mar 10, 2003

Appl. No.:

10/384813

Inventors:

Christine P. Spiegelberg - Tucson AZ, US
Jihong Geng - Tucson AZ, US
Yushi Kaneda - Tucson AZ, US
Shibin Jiang - Tucson AZ, US
Ronald Pollock - Van Nuys CA, US
Ik Joon Song - Montebello CA, US
Ping Li - Diamond Bar CA, US
Sean Staines - Hampshire, GB
Chih-Jen Chi - Thousand Oaks CA, US

Assignee:

NP Photonics, Inc. - Tucson AZ

International Classification:

H01S003/00

US Classification:

372 6, 372 92, 372 99, 372102

Abstract:

A short laser cavity (up to 30 cm in length) comprising a free-space tunable MEMS Fabry-Perot filter, a collimating lens and a section of erbium-doped phosphate gain fiber (2-25 cm) is formed between a pair of broadband reflectors. The cavity is optically pumped to excite the erbium ions and provide gain, which establishes an initial longitudinal mode structure that spans the C-band with a mode spacing of at least 0. 3 GHz and a roundtrip unsaturated gain of at least 8 dB over the tuning range. A controller tunes the MEMS filter, which has a filter function whose spectral width is at most ten and preferably less than four times the longitudinal mode spacing, to align its transmission maxima to one of a plurality of discrete output wavelengths that span the C-band. A thermal control element adjusts the longitudinal mode structure to align a single mode with the transmission maxima of the filter. Because the spectral width of the filter function is narrow, laser emission will be limited to a single longitudinal mode.

US Patent:

7174440, Feb 6, 2007

Filed:

Oct 2, 2003

Appl. No.:

10/678672

Inventors:

Robert C Chang - Danville CA, US
Bahman Qawami - San Jose CA, US
Farshid Sabet-Sharghi - San Jose CA, US
Ping Li - Santa Clara CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

G06F 12/10

US Classification:

711202, 711103

Abstract:

Methods and apparatus for caching updates or new data associated with a logical block are disclosed. According to one aspect of the present invention, a method for processing contents associated with blocks of a non-volatile memory includes obtaining a first set of contents that is associated with a first group of logical pages associated with a first logical block, and writing the first set of contents into a memory area. The first set of contents is then written from the memory area into a first group of physical pages associated with a second physical block that is then mapped to the first logical block. In one embodiment, the memory area is one of a RAM cache and a physical block cache.

US Patent:

7229923, Jun 12, 2007

Filed:

Feb 3, 2004

Appl. No.:

10/772133

Inventors:

Wilbur G. Catabay - Saratoga CA, US
Zhihai Wang - Sunnyvale CA, US
Ping Li - San Jose CA, US

Assignee:

LSI Corporation - Milpitas CA

International Classification:

H01L 21/44

US Classification:

438687, 438643

Abstract:

Methods for forming robust copper structures include steps for providing a substrate with an insulating layer with openings formed therein. At least two barrier layers are then formed followed by the deposition of a copper seed layer which is annealed. Bulk copper deposition of copper and planarization can follow. In one approach the seed layer is implanted with suitable materials forming an implanted seed layer upon which a bulk layer of conductive material is formed and annealed to form a final barrier layer. In another approach, a barrier layer is formed between two seed layers which forms a base for bulk copper deposition. Another method involves forming a first barrier layer and forming a copper seed layer thereon. The seed layer being implanted with a barrier material (e. g. palladium, chromium, tantalum, magnesium, and molybdenum or other suitable materials) and then bulk deposition of copper-containing material is performed followed by annealing.

US Patent:

7320126, Jan 15, 2008

Filed:

Nov 6, 2001

Appl. No.:

10/005740

Inventors:

Robert C. Chang - Danville CA, US
Ping Li - Santa Clara CA, US
Farshid Sabet-Sharghi - San Jose CA, US

Assignee:

SanDisk Corporation - Milpitas CA

International Classification:

G06F 9/44

US Classification:

717168, 717171, 710 5

Abstract:

Methods and apparatus for efficiently enabling firmware associated with a flash memory card to be updated are disclosed. According to one aspect of the present invention, a method for updating firmware associated with a memory storage device includes providing new firmware to a host and sending the new firmware from the host to a reader which communicates with the host. The reader interfaces with the memory storage device which includes installed firmware. The method also includes sending the new firmware from the reader to the memory storage device, and incorporating the new firmware into the memory storage device such that the new firmware at least partially replaces the installed firmware. In one embodiment, the method further includes embedding the new firmware into a first command. In such an embodiment, sending the new firmware from the host to the reader includes sending the first command from the host to the reader.

US Patent:

7413984, Aug 19, 2008

Filed:

Apr 10, 2007

Appl. No.:

11/733673

Inventors:

Wilbur G. Catabay - Saratoga CA, US
Zhihai Wang - Sunnyvale CA, US
Ping Li - San Jose CA, US

Assignee:

LSI Corporation - Milpitas CA

International Classification:

H01L 21/44

US Classification:

438687, 438643

Abstract:

Embodiments of the invention include a method for forming a copper interconnect having a bi-layer copper barrier layer. The method comprises the steps of providing a substrate with a low-K dielectric insulating layer and an opening in the insulating layer. A first barrier layer of tantalum/tantalum nitride is formed on the insulating layer and in the opening. A second barrier layer consisting of a material selected from the group of palladium, chromium, tantalum, magnesium, and molybdenum is formed on the first barrier layer. A copper seed layer is formed on the second barrier layer and implanted with barrier ions and a bulk copper layer is formed on the seed layer. The substrate is annealed and subject to further processing which can include planarization.

US Patent:

7552345, Jun 23, 2009

Filed:

Mar 4, 2002

Appl. No.:

10/092049

Inventors:

Robert C. Chang - Danville CA, US
Ping Li - Santa Clara CA, US
Farshid Sabet-Sharghi - San Jose CA, US

Assignee:

SanDisk Corporation - Sunnyvale CA

International Classification:

G06F 21/00
H04L 9/00

US Classification:

713193

Abstract:

Methods and apparatus for enabling protected contents such as device keys to be stored on a reader are disclosed. According to one aspect of the present invention, a method for accessing a memory storage device that includes a memory and is coupled to a host system through an adapter, the memory storage device including a memory includes obtaining a key from the adapter. The key is suitable for encrypting information that is arranged to be stored in the memory, and is also suitable for decrypting the encrypted information. The method also includes processing the information using the key. In one embodiment, the information is stored in the memory, and the information that is stored in the memory is obtained by processing the information such that the information may be decrypted using the key.

US Patent:

7710983, May 4, 2010

Filed:

Apr 21, 2005

Appl. No.:

11/112635

Inventors:

Danyang Zheng - Fremont CA, US
Ping Li - Fremont CA, US
Jack C. Cham - San Leandro CA, US
Charles Shen - Fremont CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370396, 370432, 370386, 370422, 370408, 370398

Abstract:

A method and apparatus for determining information associated with a particular multicast channel in a multicast network are disclosed. In accordance with the method, a request message requesting information associated with the particular multicast channel is generated and sent to the multicast network. Further, the request message is propagated downstream in a recursive manner via a multicast topology of the multicast network. A response to the request message is propagated upstream via the multicast topology to generate a response message including requested information associated with the particular multicast channel. The information may comprise number of users receiving the particular multicast channel.