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:
Feb. 19, 2008
Filed:
Mar. 23, 2004
Michio Miura, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Yoshio Satoh, Kawasaki, JP;
Masanori Ueda, Yokohama, JP;
Hideki Takagi, Tsukuba, JP;
Michio Miura, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Yoshio Satoh, Kawasaki, JP;
Masanori Ueda, Yokohama, JP;
Hideki Takagi, Tsukuba, JP;
Fujitsu Media Devices Limited, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
A method of manufacturing a surface acoustic device that has a surface acoustic wave filter including comb-like electrodes, electrode pads, and wiring patterns formed on a joined substrate produced by joining a piezoelectric substrate and a supporting substrate to each other. This method includes the steps of: activating at least one of the joining surfaces of the piezoelectric substrate and the supporting substrate; and joining the piezoelectric substrate and the supporting substrate in such a manner that the activated joining surfaces face each other.