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:
Mar. 22, 2016
Filed:
Jan. 30, 2014
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Preminder Singh, Belmont, CA (US);
Sung Wook Kang, Santa Clara, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 25/00 (2006.01); G01R 31/30 (2006.01); G06F 1/32 (2006.01); G01R 31/28 (2006.01); H01L 21/66 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3004 (2013.01); G06F 1/324 (2013.01); G01R 31/2879 (2013.01); H01L 22/34 (2013.01);
Abstract
A device includes an integrated circuit programmed with an operating surface equation. The operating surface equation may define an operating point as a function of operating voltage, operating frequency, and leakage current. The operating surface equation may be generated by fitting a surface equation to data for operating voltage and operating frequency versus leakage current for a plurality of test integrated circuits. An operating voltage of the integrated circuit at a given operating frequency may be determined by the operating surface equation and a leakage current value fused into the device.