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:
Apr. 20, 1976
Filed:
Sep. 15, 1971
Arthur E Horton, Richardson, TX (US);
Jordan W Brantley, Hurst, TX (US);
Paul R Smith, Dallas, TX (US);
Cecil W Lightfoot, Dallas, TX (US);
Richard L Hanneman, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A continuous film transistor fabrication process utilizes a roll of polyimide substrate film on which a plurality of groups of three metal contacts is patterned. The edges of the film are turned under, including portions of the metal contacts, to facilitate the ohmic bonding of the substrate contacts to other respective contacts on a support member. Holes are formed in the film between each pattern to act as indexing means for feeding the film through a series of processing stations. As the film passes through each station, a separate step in the fabrication takes place, until the completed, tested, and sorted transistors are removed from the last station.