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:
Aug. 18, 2015
Filed:
Aug. 31, 2011
Applicants:
Colin C. Mcandrew, Phoenix, AZ (US);
Brandt Braswell, Chandler, AZ (US);
Inventors:
Colin C. McAndrew, Phoenix, AZ (US);
Brandt Braswell, Chandler, AZ (US);
Assignee:
FREESCALE SEMICONDUCTOR, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); H01L 21/66 (2006.01); H01L 27/092 (2006.01);
U.S. Cl.
CPC ...
H01L 22/34 (2013.01); H01L 27/092 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A semiconductor device comprises a plurality of transistor mismatch circuits formed on a semiconductor wafer; and a characterization circuit formed on the semiconductor wafer. The characterization circuit is coupled to receive input provided by the absolute value circuits simultaneously which themselves receive inputs from the mismatch circuits simultaneously and is configured to output a standard deviation of mismatch between transistors in the mismatch circuits.