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. 28, 2004
Filed:
Mar. 14, 2002
Frederick Austin Stawitcke, Sunnyvale, CA (US);
Shalini Venkatesh, Santa Clara, CA (US);
Datong Chen, Fremont, CA (US);
Richard Earl Haven, Sunnyvale, CA (US);
Mark Andrew Troll, Seattle, WA (US);
David James Anvar, Mountain View, CA (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
Bubble stability within an optical switch is enhanced by controlling the expansion or movement of a bubble from a liquid-containing trench into available adjacent spacing. Typically, the adjacent spacing is formed between an optical waveguide substrate and a heater substrate, where the heater substrate includes a microheater for forming the bubble. The bubble enhancement is provided by intentionally altering surface features along at least one of the substrates.