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. 23, 1996
Filed:
Jul. 22, 1994
Gregory Hotchkiss, Richardson, TX (US);
Jules D Levine, Dallas, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An improved method of affixing spheres 4 to a conductive foil sheet 28 is described herein. A cell matrix is provided. The cell matrix includes a conductive foil matrix 2 with spheres 4 mounted therein. Each of the spheres 4 has an insulating layer 20 disposed on it. A portion of this insulating layer 20 is removed from each of the spheres 4 to expose a portion 22 of the spheres 4. A cell sandwich 32 is then formed between an upper pressure pad 34 and a lower pressure pad 36. The cell sandwich 32 includes the cell matrix 2/4 and a conductive foil 28. The cell sandwich 32 is then heated (preferably to between about 350.degree. and 450.degree. C.). The spheres 4 are then affixed to the conductive foil 28 by compressing the cell sandwich 32. In one embodiment, the compression takes place in a roll press 48.