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:
Mar. 23, 2004
Filed:
Mar. 12, 2002
Applicant:
Inventors:
Hubert Bellm, Stutensee, DE;
Dieter Kant, Rheinstetten, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/188 ;
U.S. Cl.
CPC ...
G01N 2/188 ;
Abstract
An inspection device for inspecting the solder paste printing on printed circuit boards. Three-dimensional surface structures ( ) are optically detected ( ) and the values of their geometric properties are calculated. The values thus measured are inspected ( ) for conformance to an absolute tolerance range. To fine-adjust the limit values, an operator has the option of evaluating the displayed defects as pseudo-defects, in which case the measured values are automatically accepted as the new limit values of the respective absolute tolerance range.