Patent ID: 6337027
Filing Date: 2002-01-08
Classification: B81C

Abstract:
A process for manufacturing a micro electromechanical system (MEMS) device comprising the steps of:Defining structural elements of said MEMS device in a first substrate, said first substrate having a sacrificial portion; Preparing a second substrate for supporting said structural elements of saidA MEMS device; Aligning said first and second substrates; Bonding said first and second substrates to form a composite structure; Removing said sacrificial portion of said first substrate to release the structural elements of said MEMS device by spraying an etchant on said composite structure while said composite structure is rotated in a chamber; Monitoring the rate of removal to determine completion of said removing step; and Cleaning said composite structure by spraying heated de-ionized water on said composite structure while said composite structure continues to rotate in said chamber.