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.

Date of Patent:
Apr. 07, 2015

Filed:

Nov. 21, 2012
Applicants:

Kazuo Noda, Osaka, JP;

Takahiro Inoue, Osaka, JP;

Inventors:

Kazuo Noda, Osaka, JP;

Takahiro Inoue, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01H 37/76 (2006.01); G01J 1/44 (2006.01); G11C 17/16 (2006.01); G11C 17/18 (2006.01);
U.S. Cl.
CPC ...
H01H 37/761 (2013.01); G01J 1/44 (2013.01); G11C 17/16 (2013.01); G11C 17/18 (2013.01);
Abstract

A resistor array is provided in an element array. A mean value of a characteristic-value distribution is associated with a median of combined resistance values obtained by the element array. An array of trimming information pieces corresponding to combined resistance values larger than the median is set in a descending order of '15' to '8' in decimal number, and an array of trimming information pieces corresponding to combined resistance values less than the median is set in an ascending order of ‘0’ to ‘7’ in decimal number. A circuit converts trimming information derived from the trimming information generation circuit to generate element selection information for selecting turn-off resistors to obtain combined resistance values from the resistor array. Thus, the number of melted-and-cut fuses involved in generation of trimming information associated within the range of 'mean value±2σ' in the distribution is reduced.


Find Patent Forward Citations

Loading…