Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-06-05
2007-06-05
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S31300R, C333S193000
Reexamination Certificate
active
11126671
ABSTRACT:
Sacrificial electrodes with fractal-shaped are formed on a SAW (surface acoustic wave) device. The sacrificial electrodes discharge electro-static charge in the SAW device for protecting the IDT (inter-digital transducer) from electrostatic break. Moreover, the sacrificial electrodes can control the path and the discharging degree of the electro-static discharge to avoid losing the electro-static discharge protection due to the sacrificial electrodes are broken.
REFERENCES:
patent: 6768397 (2004-07-01), Takamine
patent: 7154207 (2006-12-01), Sakaguchi et al.
Chen Chi-Yun
Chiu Shih-Cheng
Huang Yu-Tung
Lin Ken-Huang
Lin Kuan-Yu
Dougherty Thomas M.
Kusner & Jaffe
Tai-Saw Technology Co., Ltd.
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