Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takashi Matsuda0
Kazunori Inoue0
Keiji Tsuda0
Shunichi Aikawa0
Jyouji Kimura0
Date of Patent
September 8, 2009
0Patent Application Number
120184600
Date Filed
January 23, 2008
0Patent Primary Examiner
Patent abstract
An acoustic wave device includes an acoustic wave element formed on a substrate, a first seal portion provided on the substrate so as to form a cavity above the acoustic wave element, and a second seal portion provided on the first seal portion, the first seal portion having a step so that the first seal portion has a width on a first side and another width on a second side arranged so that the first side is closer than the second side to the substrate, and the width on the first side is greater than the another width on the second side.
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