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:
Nov. 08, 1983
Filed:
Jan. 13, 1983
Larry D Olson, Viroqua, WI (US);
UOP Inc., Des Plaines, IL (US);
Abstract
Multilayer laminates and substrates for carriers of silicon chips which are used in circuitry boards will comprise woven hybrid glass cloth formed from fiberglass and a second material which possesses a coefficient of thermal expansion of less than about 5.0.times.10.sup.-6 in/in/.degree.C. The resulting laminates will be thermally and dimensionally stable. As an example, a hybrid glass cloth may be formed in which the warp yarn of said cloth is fiberglass and the fill yarn is boron nitride. The resulting cloth may be used to form laminates which possess a coefficient of thermal expansion similar in nature to that of a chip carrier such as ceramic, thus minimizing the danger of a solder fracture.