Jing L Li

US Patent:

8446748, May 21, 2013

Filed:

Aug 4, 2011

Appl. No.:

13/198292

Inventors:

Chung Hon Lam - Peekskill NY, US
Jing Li - Ossining NY, US
Robert Montoye - Rochester MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11C 15/04

US Classification:

365 491, 3651892

Abstract:

What is disclosed is a novel memory array and process for creating a memory array to reduce wireline variability. The method includes accessing a routing design of a memory array with a plurality of memory cells. Each memory cell in the array includes one or more access devices, and a group of wires electrically connected between one or more of the memory cells and peripheral circuitry (PC). The group of the group of wires is divided into at least one subgroup (N). Next, a capacitance (C, C. . . CN) of each wire in the subgroup (N) is calculated. Continuing further, a maximum capacitance (CMAX) of wires in the subgroup (N) is determined. An add-on capacitance to be added to a number (NA) of the wires in the subgroup (N) is calculated.

US Patent:

8560902, Oct 15, 2013

Filed:

Aug 16, 2012

Appl. No.:

13/587146

Inventors:

Chung H. Lam - Peekskill NY, US
Jing Li - Ossining NY, US
Robert K. Montoye - Rocheter MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11C 29/00
G01R 31/28

US Classification:

714721, 714732

Abstract:

A method for programming a Phase Change Material-Content Addressable Memory (PCM-CAM). The method includes receiving a word to be written in a PCM-CAM. The word includes low bits represented by a low resistance state in the PCM-CAM and high bits represented by a high resistance state in the PCM-CAM. The method further includes repeatedly writing the low bits in memory cells of the PCM-CAM until the resistance of the memory cells are below a threshold value, and writing the high bits in memory cells of the PCM-CAM only once.

US Patent:

8605497, Dec 10, 2013

Filed:

Dec 22, 2011

Appl. No.:

13/335310

Inventors:

Chung H. Lam - Peekskill NY, US
Jing Li - Yorktown Heights NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11C 11/00

US Classification:

365163, 365158

Abstract:

A system, a method for parallel programming multiple bits of a phase change memory array for high bandwidth. The system and method includes parallel programming scheme wherein a common wordline (WL) is driven with a first pulse of one of: gradually increasing (RESET) or decreasing (SET) amplitudes which control current flow through one or more phase change memory cells associated with the WL. Simultaneously therewith, one or more bitlines (BLs) are driven with one or more second pulses, each second pulse more narrow than that of the first pulse applied to the WL. The starting time of the one or more second pulses may vary with each bitline driven at a time later than, but within the window of the wordline pulse to achieve a programming current suitable for achieving the corresponding memory cell state.

US Patent:

8614911, Dec 24, 2013

Filed:

Dec 22, 2011

Appl. No.:

13/335155

Inventors:

Chung H. Lam - Peekskill NY, US
Jing Li - Yorktown Heights NY, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11C 11/00

US Classification:

365163, 365158

Abstract:

A drive circuit and method for parallel programming a plurality of phase change memory (PCM) cells includes a first signal generator device for generating a slow ramping signal; an adiabatic computing element receives the slow ramping signal and responsively generates an output slow ramping signal in adiabatic fashion, the output slow ramping signal applied to the single wordline conductor associated with each PCM cell of the plurality of cells being programmed in a time interval. Each PCM cell of the plurality being programmed is connected to a respective bitline conductor. A second signal generator generates, during the time interval, one or more bitline signals for input to a respective bitline conductor of a respective PCM cell. A state of the applied slow ramping output signal and the one or more bitline signals during the time interval governs a programmed state of the PCM cell.

US Patent:

8638598, Jan 28, 2014

Filed:

Oct 1, 2012

Appl. No.:

13/551574

Inventors:

Chung H. Lam - Peekskill NY, US
Jing Li - Ossining NY, US
Robert K. Montoye - Rocheter MN, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11C 11/00

US Classification:

365158, 365148, 36518503

Abstract:

An example embodiment is a method for determining a binary value of a memory cell represented by an electrical resistance level of the memory cell. The method includes iteratively charging shunt capacitors having different capacitances until a selected shunt capacitor causes the voltage to decay through the memory cell to a reference voltage within a predetermined time range. A binary value of the most significant bits of the memory cell is determined based on the selected shunt capacitor. The selected shunt capacitor is then charged to a second voltage and the binary value of the least significant bits of the memory cell is determined based on a decay of the second voltage at the selected shunt capacitor through the memory cell.

US Patent:

20030032027, Feb 13, 2003

Filed:

Feb 12, 2002

Appl. No.:

10/073123

Inventors:

Jing Li - Flushing NY, US
Scott Powers - Greenlawn NY, US

International Classification:

C12Q001/68
G06F019/00
A61K048/00

US Classification:

435/006000, 702/020000, 514/044000

Abstract:

There are disclosed methods and compositions for the diagnosis, prevention, and treatment of tumors and cancers in mammals, for example, humans, utilizing the WIP1 gene, which are amplified breast, and/or lung, and/or colon, and/or ovarian, and/or prostate cancer genes. The WIP1 gene, its expressed protein products and antibodies are used diagnostically or as targets for cancer therapy; they are also used to identify compounds and reagents useful in cancer diagnosis, prevention, and therapy.

US Patent:

20030044814, Mar 6, 2003

Filed:

Feb 8, 2002

Appl. No.:

10/071838

Inventors:

Jing Li - Flushing NY, US
Scott Powers - Greenlawn NY, US
Phil Xiang - San Francisco CA, US
Yue Peng - South Setauket NY, US

Assignee:

Tularik Inc. - South San Francisco CA

International Classification:

C12Q001/68
G01N033/574
C12P019/34

US Classification:

435/006000, 435/007230, 435/091200

Abstract:

The present invention provides nucleic acid and protein sequences for a novel protein, PRC17, and methods, reagents, and kits for diagnosing and treating cancer in a mammal, e.g., a human. This invention is based upon the discovery that the novel PRC17 is overexpressed and/or amplified in cancer. Methods to detect cancer or a propensity to develop cancer, to monitor the efficacy of a cancer treatment, and to treat cancer, by inhibiting the expression and/or activity of PRC17 in a cancer cell are included.

US Patent:

20030099985, May 29, 2003

Filed:

Aug 27, 2002

Appl. No.:

10/228263

Inventors:

Jing Li - Flushing NY, US

International Classification:

C12Q001/68
G06F019/00
G01N033/48
G01N033/50
A61K048/00

US Classification:

435/006000, 702/020000, 514/044000

Abstract:

There are disclosed methods and compositions for the diagnosis, prevention, and treatment of tumors and cancers in mammals, for example, humans, utilizing the C8FW gene, which are amplified breast and/or brain and/or colon and/or lung and/or prostate and/or ovarian cancer genes. The C8FW gene, its expressed protein products and antibodies are used diagnostically or as targets for cancer therapy or vaccine; they are also used to identify compounds and reagents useful in cancer diagnosis, prevention, and therapy.