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. 20, 1979
Filed:
Dec. 12, 1977
Mordechai Wiesler, Lexington, MA (US);
Teledyne, Inc., Hawthorne, CA (US);
Abstract
A precision centering device with a pair of relatively movable plates forming a guideway for four relatively movable guides. A tapered centering port having a rectangular profile is formed by the guides which are constrained for mutual coacting movement by the plates. The relative positions of the movable plates define the geometric shape of the centering port and the relative locations of the guides determine the size of the centering port. A reciprocating collet configured to carry a semiconductor chip is received within the centering port at the center thereof. As the collet moves downwardly, the chip is guided through the tapered port and is centered on the collet.