| Presentation | 1999/2/12 Consideration of realizing fundamental mode vibration and high heat-resistance in crystal resonators Takaya Watanabe, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This is proposal that AT-cut overtone mode is suppressed in fundamental mode crystalresonator (FMC resonator). The suppression is achieved by a central floating electrode and an outer portion exciting electrode. 25.5 MHz FMC resonator is discussed experimental result and equivalent circuit analysis. It is also shown that high heat-resistance in crystal resonators may obtained by the system design approach of a better evaporated process and reducing residual stress in assembly process. After 360℃ thirty seconds heat test, this UM type crystal resonator's frequency changes with in 0.5 ppm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fundamental mode crystal resonator / Floating electrode / Distributed equivalent circuit analysis / High heat-resistance / Mounting structure / Residual stress / Aging characteristics |
| Paper # | US98-105 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 1999/2/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Consideration of realizing fundamental mode vibration and high heat-resistance in crystal resonators |
| Sub Title (in English) | |
| Keyword(1) | Fundamental mode crystal resonator |
| Keyword(2) | Floating electrode |
| Keyword(3) | Distributed equivalent circuit analysis |
| Keyword(4) | High heat-resistance |
| Keyword(5) | Mounting structure |
| Keyword(6) | Residual stress |
| Keyword(7) | Aging characteristics |
| 1st Author's Name | Takaya Watanabe |
| 1st Author's Affiliation | World Technology Instrument Co., Ltd.() |
| Date | 1999/2/12 |
| Paper # | US98-105 |
| Volume (vol) | vol.98 |
| Number (no) | 587 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |