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:
Jul. 21, 2015
Filed:
Aug. 28, 2013
International Business Machines Corporation, Armonk, NY (US);
Raghu G. GopalaKrishnaSetty, Bangalore, IN;
Kshitij Kulshreshtha, Karnataka, IN;
Balaji Upputuri, Bangalore, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for creating an architecture to support Q-gating for launch-off-shift (LOS) scan testing using a plurality of flip-flops is provided. The method may include applying a common clock signal to each clock input of the plurality of flip-flops and applying a gated scan enable signal to each scan enable input of the plurality of flip-flops. The method may further include applying a global scan enable signal directly to each of a plurality of Q-gates corresponding to each of the plurality of flip-flops, wherein the global scan enable signal traverses a signal path that bypasses combinational logic located between any two flip-flops of the plurality of flip-flops.