Jason R Hoff

US Patent:

6680629, Jan 20, 2004

Filed:

Dec 18, 2001

Appl. No.:

10/026154

Inventors:

Andrew M. Rankin - Fort Collins CO
Jason Hoff - Madison WI
Ken Szajda - Holliston MA

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H03B 100

US Classification:

327108, 327112, 326 27, 326 82, 326 83

Abstract:

A long channel transistor and a shorter channel transistor operate in conjunction to drive an output node. The long channel device is first activated by a drive signal and the drive signal is input to a delay element that then activates the shorter channel device. By enabling the long channel device first, hot carrier injection effects are reduced. Employing two transistors that are sized to operate in different voltage ranges reduces surge current. The two-transistor configuration of the present invention occupies less area than a single long channel device with similar drive capabilities.

US Patent:

7168055, Jan 23, 2007

Filed:

Aug 10, 2004

Appl. No.:

10/914921

Inventors:

Jason Hoff - Fort Collins CO, US
Daniel Prevedel - Fort Collins CO, US

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

G06F 17/50

US Classification:

716 4, 716 5

Abstract:

A method for detecting nets physically changed and electrically affected by a design ECO includes steps as follows. An ECO is executed on an IC design to produce a post-ECO IC design. A first group of nets of the IC design physically changed by the ECO is identified by comparing a pre-ECO database with a post-ECO database. A pre-ECO design SPEF file of the IC design is parsed with a script to identify a second group of nets in the pre-ECO database based on the first group of nets, the second group of nets being coupled to the first group of nets. The second group of nets is pre-ECO electrically affected nets. Parasitics for the first group of nets in the post-ECO database are extracted to generate a parasitic data file for the first group of nets. The parasitic data file is parsed with the script to identify a third group of nets in the post-ECO database based on the first group of nets, the third group of nets being coupled to the first group of nets. The third group of nets is post-ECO electrically affected nets.

US Patent:

63074141, Oct 23, 2001

Filed:

Mar 10, 2000

Appl. No.:

9/523505

Inventors:

Jason K. Hoff - Fort Collins CO

Assignee:

LSI Logic Corporation - Milpitas CA

International Classification:

H03K 512

US Classification:

327170

Abstract:

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a first output signal having a predetermined slew rate and propagation delay in response to a first input signal and a control signal. The second circuit may be configured to generate a second output signal having a predetermined slew rate and propagation delay in response to a second input signal and the control signal.