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:
Jun. 29, 1999
Filed:
Sep. 29, 1997
Applicant:
Inventors:
Robert Charles Camilletti, Midland, MI (US);
Loren Andrew Haluska, Midland, MI (US);
Keith Winton Michael, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524394 ; 524588 ; 524398 ; 524399 ; 524435 ; 524434 ; 524430 ; 524437 ; 524432 ; 524406 ; 524413 ; 524408 ; 524423 ; 524425 ; 524448 ; 524440 ; 524441 ; 524445 ; 524449 ; 524451 ; 524 35 ; 525420 ; 525487 ;
Abstract
Disclosed is a method of forming tamper-proof coatings on electronic devices. The method comprises applying a coating of a silica precursor resin and a filler onto the electronic device, wherein the filler is one which reacts in an oxidizing atmosphere to liberate enough heat to damage the electronic device. The coated electronic device is then heated at a temperature sufficient to convert the silica precursor resin to a silica containing ceramic matrix.