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. 25, 1995
Filed:
Nov. 03, 1992
Kouji Saitoh, Yokohama, JP;
Kazuyuki Uchida, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A testing integrated circuit for a semiconductor chip, having an integrated circuit, includes a selector, provided in the integrated circuit of the semiconductor chip, for selecting one of a first set of signals supplied from external portions of the semiconductor chip and a second set of signals used for measuring voltages at respective predetermined portions in an internal circuit of the semiconductor chip. The first set of signals is converted from analog to digital signals during a normal operation of the semiconductor chip. An analog-to-digital converter provided in the integrated circuit receives an analog signal output from the selector and produces a digital signal. A plurality of output pads disposed in the semiconductor chip transmits the digital signal from the analog-to-digital converter to the external portions. The output pads correspond to a bit quantity of the analog-to-digital converter.