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:
Sep. 06, 2005
Filed:
Sep. 20, 2001
Applicant:
Lawrence E. Felton, Hopkinton, MA (US);
Inventor:
Lawrence E. Felton, Hopkinton, MA (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B026/08 ; G02F001/29 ;
U.S. Cl.
CPC ...
Abstract
In an optical switching apparatus having a mirror structure bonded to a substrate, the gap between the mirror structure and the substrate is controlled by mechanical standoffs placed between the mirror structure and the substrate. The mirror structure is bonded to the substrate using solder. The mechanical standoffs are formed from a material having a higher melting point than that of the solder. The mirror structure is bonded to the substrate under pressure at a temperature between the melting point of the solder and the melting point of the mechanical standoffs.