Invention Grant
- Patent Title: Method and apparatus for IC 3D lead inspection having color shadowing
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Application No.: US14283466Application Date: 2014-05-21
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Publication No.: US09626752B2Publication Date: 2017-04-18
- Inventor: Walter James Frandsen, Jr. , Kexiang Ken Ding
- Applicant: Delta Design, Inc.
- Applicant Address: US CA Poway
- Assignee: Delta Design, Inc.
- Current Assignee: Delta Design, Inc.
- Current Assignee Address: US CA Poway
- Agency: Foley & Lardner LLP
- Main IPC: H04N13/04
- IPC: H04N13/04 ; H04N9/47 ; G06T7/00 ; G01B11/02 ; G01N21/88 ; G01N21/95 ; G01N21/956

Abstract:
A system for three-dimensional inspection of leads mounted on an integrated circuit device includes an integrated circuit device, a first light source having a first color, a second light source having a second color different from the first color, a RGB color camera and a processor. The first light source is disposed at an acute angle to the integrated circuit device, and is configured to illuminate the leads such that lead shadows are created in a first color plane. The second light source is disposed in front of a surface of the integrated circuit device on which the leads are mounted, and is configured to illuminate the leads in a second color plane. The camera is configured to image the illuminated leads and lead shadows. The processor is configured to analyze the first and second color planes of a single image to detect three-dimensional bent leads.
Public/Granted literature
- US20140347446A1 METHOD AND APPARATUS FOR IC 3D LEAD INSPECTION HAVING COLOR SHADOWING Public/Granted day:2014-11-27
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