Patent ID: 8455288
Filing Date: 2013-06-04
Classification: B81B,B81C,H04R

Abstract:
1. A micromachining process comprising: forming a plurality of layers on a wafer, the plurality of layers including a support layer, a given layer, and a deeper layer, the given layer being between the support layer and the deeper layer, the support layer having common material, the deeper layer also having common layer material, the common material in the deeper layer being discontiguous with the common material in the support layer, the given layer separating the common material in the support layer from the common material in the deeper layer; forming a mask at least in part on the support layer, the mask having a mask hole, the support layer being between the mask hole and the given layer, the support layer longitudinally spacing the mask hole from the given layer; and etching a feature into the given layer through the mask hole; and etching the common material in the deeper layer through the mask hole in the mask and through the feature in the given layer.