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:
Oct. 19, 1993
Filed:
Jan. 10, 1992
Masakazu Kimura, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A static random access memory integrated circuit comprises a plurality of memory cells that contain load resistance elements formed as load resistance strips in proximity of active and passive components of the integrated circuit. A conductive layer formed between the load resistance strips and such components functions as a shield to protect the load resistance strips of a memory cell from the effects of electric fields established from operation of such components, such as, MOS transistors underlying the load resistance strips between which the shield is formed. With the load resistance strips protected by the presence of the shield, their resistance values will not vary or be effected by imposing electric fields from the operation of the MOS transistors. Shield protection of the load resistance values by this shielding permits a corresponding thinning of thickness of the load resistance strips to increase their resistance value thereby permitting a reduction in the length of these strips while maintaining their necessary high resistance values for operation of the memory cell, which reduces the consumption current, I.sub.DD, as well as the overall size of the memory cell so that the total density of the static memory device is effectively increased.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile