Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1998-08-05
2000-06-20
Ramirez, Nestor
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, 310342, H01L 4108
Patent
active
060781238
ABSTRACT:
A structure for mounting a SAW (Surface Acoustic Wave) device includes photosensitive resin filling a gap between the SAW device and a mounting substrate in the peripheral portion of the SAW device. The entire structure is substantially as small in size as the SAW device and light weight. The photosensitive resin is formed in a region including pads for connection in order to absorb thermal stresses and extraneous forces apt to act on the pads. Second resin may surround the photosensitive resin or may be provided in a laminate structure together with the photosensitive resin so as to enhance a sealing ability. A method of mounting a SAW device is also disclosed.
REFERENCES:
patent: 4047129 (1977-09-01), Ishiyama
patent: 4734608 (1988-03-01), Takoshima
patent: 5623236 (1997-04-01), Yoshinaga et al.
patent: 5920142 (1999-07-01), Onishi et al.
Fukiharu Eiichi
Funaya Takuo
Otake Kenichi
Tanaka Kei
Tanaka Yasunori
Medley Peter
NEC Corporation
Ramirez Nestor
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