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. 24, 2001
Filed:
Feb. 09, 1998
John Edwin Graebner, Short Hills, NJ (US);
Sungho Jin, Millington, NJ (US);
Wei Zhu, Warren, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Embodiments of the invention include an improved diamond-based surface acoustic wave (SAW) filter device. The SAW device comprises polished, large-grained diamond in combination with a piezoelectric layer to enhance the acoustic velocity and operational frequency of the SAW device with reduced loss and increased efficiency. Also, the use of a pre-polished, large-grained diamond slab reduces processing complications such as contamination or stressing of delicate device circuitry adjacent to the diamond component. Alternative embodiments of the invention include planar or vertical interconnection schemes for packaging of the SAW device and also include planarization schemes for convenient deposition and patterning of the SAW device metallization layer.