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:
Jun. 23, 1992
Filed:
Aug. 07, 1987
Asuri Raghavan, Warrington, PA (US);
Satish Natu, Philadelphia, PA (US);
Raymond Foran, Philadelphia, PA (US);
Kulicke & Soffa Industries, Inc., Willow Grove, PA (US);
Abstract
An image processing system and method are used to ascertain the position of lead frame beams on a semiconductor lead frame prior to the formation of wire bonds to those lead frame beams. The lead frame beams are illuminated by a light source and light reflected from the lead frame beams is detected. Digital data representative of the reflected light is generated and stored in a memory. A control means defines corridors in that memory which are analyzed to define the position of the lead frame beams and to distinguish light reflected from the lead frame beams themselves from light reflected from interlead ceramic or glasslike material.