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1. (WO2001006645) ELASTIC WAVE DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2001/006645    International Application No.:    PCT/JP2000/004469
Publication Date: 25.01.2001 International Filing Date: 05.07.2000
IPC:
H03H 9/02 (2006.01), H03H 9/145 (2006.01), H03H 9/25 (2006.01), H03H 9/64 (2006.01)
Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA [JP/JP]; 2-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-8310 (JP) (For All Designated States Except US).
YOSHIDA, Kenji [JP/JP]; (JP) (For US Only).
WADAKA, Shusou [JP/JP]; (JP) (For US Only).
MISU, Koichiro [JP/JP]; (JP) (For US Only).
NAGATSUKA, Tsutomu [JP/JP]; (JP) (For US Only).
MURAI, Kouji [JP/JP]; (JP) (For US Only).
YAMAGUCHI, Masatsune [JP/JP]; (JP) (For US Only).
HASHIMOTO, Kenya [JP/JP]; (JP) (For US Only).
OHMORI, Tatsuya [JP/JP]; (JP) (For US Only)
Inventors: YOSHIDA, Kenji; (JP).
WADAKA, Shusou; (JP).
MISU, Koichiro; (JP).
NAGATSUKA, Tsutomu; (JP).
MURAI, Kouji; (JP).
YAMAGUCHI, Masatsune; (JP).
HASHIMOTO, Kenya; (JP).
OHMORI, Tatsuya; (JP)
Agent: TAZAWA, Hiroaki; Daito Building 7F, 7-1, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo 100-0013 (JP)
Priority Data:
11/203662 16.07.1999 JP
Title (EN) ELASTIC WAVE DEVICE
(FR) DISPOSITIF A ONDE ELASTIQUE
Abstract: front page image
(EN)An elastic wave device comprising an interdigital electrode consisting of a conductor with a specified thickness and formed on a piezoelectric substrate mainly consisting of lithium niobate, wherein a surface rotated around a lithium niobate crystal X-axis within a range of 55° to 57° from a crystal Y-axis is used as the substrate surface, and a duty ratio of the interdigital electrode (electrode finger width w/array period p of electrode finger) is at least 0.4 and less than 1.0.
(FR)L'invention concerne un dispositif à onde élastique comprenant une électrode interdigitée constituée d'un conducteur ayant une certaine épaisseur et formée sur un substrat piézo-électrique constitué principalement de niobate de lithium. Une surface tournant autour d'un axe X du cristal de niobate de lithium dans les limites d'une plage de révolution de 55° à 57° d'un axe Y du cristal sert de surface de substrat et un coefficient de services de l'électrode interdigitée (largeur (w) du doigt d'électrode /réseau de période (p) du doigt d'électrode) vaut au moins 0,4 et moins que 1,0.
Designated States: CN, KR, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)