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:
Sep. 12, 2000
Filed:
Sep. 26, 1997
Carl E Haugan, Saint Paul, MN (US);
Jeffrey A Jalkio, Saint Paul, MN (US);
Steven K Case, Saint Louis Park, MN (US);
CyberOptics Corporation, Minneapolis, MN (US);
Abstract
The present invention is a light based detection system for providing a low cost, very fast and very accurate measurements of lead positions and heights for integrated circuit board components. The alignment detections systems of the present invention are preferably located on a component placement head. The detector is a linear or rectangular array of pixels. The light path between the light source and the detector array is directed by the optical components across one or more leads in a plane that is neither parallel to nor perpendicular to the seating plane of the component. The light path is directed across the relevant leads without substantial interference from the body of the component or the other leads not being measured. A digital processor analyzes the measurements of the light sensitive detector to determine positions and/or coplanarity of the leads.