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:
Jan. 29, 2002
Filed:
May. 03, 2000
Applicant:
Inventor:
Robert Sykes, Tenoring, GB;
Assignee:
D{dot over (a)}ge Precision Industries, Ltd., Buckinghamshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/08 ;
U.S. Cl.
CPC ...
G01N 3/08 ;
Abstract
A device is described for testing the force to shear a deposit of solder or gold from a substrate, these deposits having a diameter in the range 50-100 &mgr;m and being for the bonding of electrical conductors. A shear tool has a semi-cylindrical cavity which closely approximates to the mean diameter of a range of substrates. This tool is adapted to re-shape substrates for a better fit, re-shaping occurring over 30% or less of the circumference of a deposit, and to a depth of 10% or less of the diameter of the substrate.