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:
Jan. 16, 1996
Filed:
Dec. 08, 1994
Dominic J Schepis, Wappingers Falls, NY (US);
Kris V Srikrishnan, Wappingers Falls, NY (US);
Seshadri Subbanna, Hopewell Junction, NY (US);
Manu J Tejwani, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A programmable antifuse element comprising adjacent bodies of germanium and aluminum or aluminum allow form a low resistance connection of good mechanical and thermal properties when heated to a temperature where alloying of the aluminum and germanium occurs. Heating for the purpose of programming the antifuse element can be done by electrical resistance heating in the-germanium, which may be doped to achieve a desired resistance value, or by laser irradiation. Due to the high resistance of intrinsic or lightly doped germanium, a resistance change ratio of greater than 10,000:1 is achieved.