Surface acoustic wave device with electro-static discharge...

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices

Reexamination Certificate

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C310S31300R, C333S193000

Reexamination Certificate

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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.

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