Kang Sim Lee

US Patent:

20090164831, Jun 25, 2009

Filed:

Dec 19, 2007

Appl. No.:

11/959719

Inventors:

Hemanth K. Birru - Pennsburg PA, US
Kang W. Lee - Allentown PA, US

International Classification:

G06F 1/08

US Classification:

713601

Abstract:

An OTP and Reset Assert Counter and a method for protecting one-time programmable memory settings during read-out from an OTP memory block. The OTP memory block is set at ground and in a reset mode with a clock driven External Reset (RSTB) signal set at ground true active. A Delay Counter is programmed with a time delay to correspond with the time that is inherently needed by the OTP Memory block to complete a read-out process that begins with the External Reset (RSTB) signal being set to HIGH; and an input Clock signal is delayed by the Delay Counter for a duration of the time delay that begins with the External Reset (RSTB) signal being set to HIGH.

US Patent:

61270474, Oct 3, 2000

Filed:

Feb 18, 1992

Appl. No.:

7/837619

Inventors:

Wayne L. Worrell - Penn Valley PA
Kang N. Lee - Philadelphia PA

Assignee:

The Trustees of the University of Pennsylvania - Philadelphia PA

International Classification:

B32B 1500

US Classification:

428615

Abstract:

High temperature alloys resistant to degradation and oxidation are provided. In accordance with preferred embodiments, alloys comprising from about 0. 1 to about 50 atomic percent silicon, from about 10 to about 80 atomic percent aluminum, and at least one metal selected from the group consisting of chromium, iridium, rhenium, palladium, platinum, rhodium, ruthenium, osmium, molybdenum, tungsten, niobium and tantalum are formed. Shaped bodies and structural members comprising such alloys are also described as are methods for their fabrication.