Josef Rzeznik - Conshohocken PA Raymond E. Foran - Philadelphia PA
Assignee:
Kulicke and Soffa Industries, Inc. - Willow Grove PA
International Classification:
H01L 2314 H01L 2304
US Classification:
357 74
Abstract:
A light concentrating cluster mount for super bright light emitting diodes is provided. The cluster mount is provided with a plurality of LED receivers therein. Said cluster mount has a central axis and each of the LED receivers has a focus axis displaced from the central axis and is focused to cross the central axis at a predetermined distance from the cluster mount so that the side light and the frontal light emitted from each of the light emitting diodes is refocused on to area to be illuminated at a predetermined distance from the cluster mount.
George Berkin - Yardley PA Richard F. Heady - Jenkintown PA Jeffrey Clarke - Telford PA Asuri Raghavan - Bedminster NJ Raymond Foran - Philadelphia PA Ralph Mayer - Ambler PA Joseph Chlebda - Langhorne PA
Assignee:
Kulicke & Soffa Industries, Inc. - Willow Grove PA
International Classification:
G06K 948
US Classification:
382 8
Abstract:
A system and method for determining the condition and location of an electronic die on a die holding means is disclosed. The system includes means for illuminating the die and means for generating a video image in which the appearance of the die is enhanced relative to the die holding means. This is accomplished by providing a sensing means for sensing primarily only that light reflected from the candidate die. Means for converting the video image into a digital image and processing said digital image to identify the edges of the die is also disclosed. More particularly, means for generating digital data representing the video image, means for defining a corridor in said digital image, said corridor having a width and a length, and means for processing the digital image to obtain a signature element within the digital data are provided. A signature element is the widthwise summation of data within the corridor at a point along the lengthy of the corridor and represents the relative blackness or whiteness in a particular region of the digital image. Also provided are control means for defining a corral within the digitized image of the die, means for obtaining a black count within the corral, and means for analyzing the black count to determine the condition of the die.
Asuri Raghavan - Warrington PA Satish Natu - Philadelphia PA Raymond Foran - Philadelphia PA
Assignee:
Kulicke & Soffa Industries, Inc. - Willow Grove PA
International Classification:
G06K 900
US Classification:
382 8
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.