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:
Mar. 01, 1994
Filed:
Jun. 21, 1991
Bertrand Conan, Aix en Provence, FR;
SGS-Thomson Microelectronics, S.A., Gentilly, FR;
Abstract
To reduce the number of connections in an electrically programmable memory circuit, a device for the testing of the memory cells is proposed. The test consists in the reading of the current that goes through the cells to which access is had in reading mode. The testing device no longer uses specific testing connections between the cells and the corresponding input/output pins but the operational connections of the reading mode, between the reading amplifiers and the input/output buffers, in short-circuiting the input and the output of the reading amplifiers located in a zone close to the memory cells and the input/output buffers located on the peripheral zone, close to the input/output pins. The means to short-circuit the amplifiers and the buffers are respectively located in a zone close to the memory cells, and in the peripheral zone.