超音波プローブの圧電振動子、超音波プローブ、超音波診断装置及び超音波プローブにおける圧電振動子の製造方法
- 专利权人:
- ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー
- 发明人:
- 磯野 洋,大塚 昌昭
- 申请号：
- JP2008331887
- 公开号：
- JP5377957B2
- 申请日:
- 2008.12.26
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator for an ultrasonic probe, where the dimension in the thickness direction of the ultrasonic probe is reduced by shortening the length of an earth electrode compared with a conventional one.
SOLUTION: A signal electrode 28 and the earth electrodes 29 are formed on the same surface of a piezoelectric body 26 constituting the piezoelectric vibrator 15. The earth electrodes 29 has projections 33 on the front surfaces. The piezoelectric body 26 includes: filling parts 31 formed by filling gaps 30 with a filler and a piezoelectric material part 32 composed of a piezoelectric material. The filling parts 31 are formed of the filler with a material to be projected onto the front surface of the piezoelectric body 26 from the piezoelectric material part 32 without being ground when grinding the front surface of the piezoelectric body 26, and has projections 31a to be projected from the front surface of the piezoelectric body 26. A conductive layer 27 at the parts of the earth electrodes 29 are projected on the projections 31a, so as to form the projections 33.
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- 来源网站：
- 中国工程科技知识中心
