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:
Oct. 17, 2000
Filed:
Sep. 30, 1998
Applicant:
Assignee:
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01R / ; H01L / ;
U.S. Cl.
CPC ...
324769 ; 324766 ; 438 14 ;
Abstract
A method for determining a reliable gate oxide thickness for a transistor involves subjecting test transistors to an alternating current (AC) voltage until the test transistors break down. The breakdown times of the test transistors are measured and correlated with the corresponding gate oxide thickness of the test transistor to form a reliability model of the transistor. The reliable gate oxide thickness is determined by extrapolating the reliability model out to a predetermined period of time for which reliability is desired, for example, ten years.