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:
Jun. 17, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventor:
Siang Ping Kwok, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 60 ; 437195 ; 437922 ;
Abstract
A low-capacitance antifuse (34 or 76) is provided for use in user-programmable integrated circuitry. The antifuse includes first (38 or 80) connection metal layers and second (54 or 94) connection metal layers. Between the metal layers is dielectric layer (52 or 82), and between the dielectric layer and at least one of the metal layers is a conductive layer in the form of pillar (40) or stack (81). The pillar or stack extends the separation between the metal layers thereby decreasing the capacitance of the antifuse.