Method and device for protecting micro electromechanical...

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor

Reexamination Certificate

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C438S110000, C438S113000

Reexamination Certificate

active

07022546

ABSTRACT:
A wafer cap protects micro electromechanical system (“MEMS”) structures during a dicing of a MEMS wafer to produce individual MEMS dies. A MEMS wafer is prepared having a plurality of MEMS structure sites thereon. Upon the MEMS wafer, the wafer cap is mounted to produce a laminated MEMS wafer. The wafer cap is recessed in areas corresponding to locations of the MEMS structure sites on the MEMS wafer. The capped MEMS wafer can be diced into a plurality of MEMS dies without causing damage to or contaminating the MEMS die.

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