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:
Oct. 27, 1998
Filed:
Sep. 16, 1996
Applicant:
Inventors:
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73620 ; 73629 ; 438 14 ; 438 15 ;
Abstract
A non-destructive method of determining substrate tilt within a packaged component includes providing the packaged component (10) with a component surface (32), providing a substrate (22) in the packaged component (10) wherein the substrate (22) has a substrate surface (33), using an acoustic wave (50) to measure a distance (34) between the component surface (32) and a region on the substrate surface (33), using another acoustic wave (53) to measure another distance (35) between the component surface (32) and a different region on the substrate surface (33), and comparing the distances (34, 35) to a threshold value.