The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2002
Filed:
Aug. 27, 2001
Zachary E. Berndlmaier, North Hero, VT (US);
Mark R. Bilak, Sandy Hook, CT (US);
Norman J. Rohrer, Underhill, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A design and burn-in technique that effectively reduces power consumption during burn-in for devices with high power consumption as a result of shrinking voltages, high instantaneous current, subthreshold leakage and high currents at stress conditions. Three methods of reducing power consumption during burn-in are disclosed in detail: (1) completely separate power grids, (2) isolated grids during burn-in, and (3) isolated grids for MTCMOS used during burn-in. Each technique provides a method of segmenting the power supply of a chip and controlling which segment of the chip is stressed based on which segment is 'powered on'. Those segments not being stressed are 'shutoff' so as to reduce power consumption.