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:
May. 17, 2005
Filed:
Jul. 18, 2002
Wang-jin Chen, Kao-Hsiung, TW;
Chen-teng Fan, Hsin-Chu Hsien, TW;
Cheng-i Huang, Hsin-Chu, TW;
Faraday Technology Corp., Hsin-Chu, TW;
Abstract
A mux scan cell includes a multiplexer having a first input node for receiving raw data, a second input node for receiving test data, an output node, a selection node, and a delay circuit electrically connected between the second input node and the output node for prolonging a traveling time which the test data takes to travel from the second input node to the output node. The mux scan cell also includes a flip-flop connected to the multiplexer. With the delay circuit, the traveling time of the test data is prolonged such that the traveling time which the test data takes to travel from the second input node to the output node simulates a sum of a traveling time in which the raw data travels through a combinational logic and a traveling time in which the raw data travels from the first input node to the output node.