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:
Apr. 03, 2012
Filed:
Dec. 30, 2008
Applicants:
Richard Jones, San Mateo, CA (US);
Alexander W. Fang, Los Angeles, CA (US);
Inventors:
Richard Jones, San Mateo, CA (US);
Alexander W. Fang, Los Angeles, CA (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/10 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acid-stop structure for a rib waveguide comprises a fin structure formed between the sidewalls in each rib channel of the rib waveguide, thereby preventing acids and other etchants from flowing down the rib channel and under a die that has been bonded to a wafer.