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:
Dec. 28, 1993
Filed:
Jan. 21, 1992
Applicant:
Inventor:
Gaylord L Francis, Painted Post, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428426 ; 428428 ; 428446 ; 428469 ; 428471 ; 428472 ; 501 53 ;
Abstract
A composite article comprising a silicon body and a glass body bonded directly thereto by electrostatic bonding. The glass composition consists essentially of oxides of silicon, aluminum, and lithium, and the glass has a coefficient of thermal expansion approximating that of silicon, etches at a rate of at least 100 mg/cm.sup.2 in 20 minutes in 48% HF, and may be electrostatically bonded to silicon at a voltage not over 1,000 volts/mm of glass thickness at a temperature not over 440.degree. C.