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. 18, 1978
Filed:
Dec. 15, 1976
Werner F Esseluhn, Wyomissing, PA (US);
Western Electric Co., Inc., New York, NY (US);
Abstract
A wafer is mounted upon a substrate and separated into individual chips which are retained on the substrate. The separated wafer and substrate are then placed on a demounting device with a passageway such that the chips on a first portion of the wafer lie over the passageway while chips on a second portion of the wafer do not. When the separated wafer is subsequently subjected to a demounting force, the chips will demount from the substrate with the chips on the first portion falling into a catch bin located in the passageway while chips on the second portion are discarded. Additional demounting devices can be provided within the passageway, if further sorting of the chips on the first portion of the separated wafer is desired.