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:
Mar. 01, 2005
Filed:
Oct. 24, 2002
Mark Karnacewicz, Norristown, PA (US);
John William Osenbach, Kutztown, PA (US);
Alexandru Paunescu, Neshanic Station, NJ (US);
Mark Karnacewicz, Norristown, PA (US);
John William Osenbach, Kutztown, PA (US);
Alexandru Paunescu, Neshanic Station, NJ (US);
TriQuint Technology Holding Co., Hillsboro, OR (US);
Abstract
An optical wire board which utilizes a silicon substrate as the base for both the optical subassembly and the electrical RF transmitting circuit. An optical fiber is preferably passively aligned to the active optical device mounted on the optical subassembly using a V-groove etched into the silicon (and may include a lens or other optical element positioned between the fiber and the active device). An integrated circuit for coupling the active optical device to external contacts is preferably flip-chip mounted to the silicon substrate upon pads disposed on precisely defined edges around a cavity etched beneath the circuit, the inclusion of the cavity beneath the electrical circuit functioning to minimize the dielectric loading effect of the silicon substrate on the integrated circuit.