Patent ID: 9040386
Filing Date: 2015-05-26
Classification: B81B,B81C

Abstract:
1. A device comprising: a semiconductor wafer having a top surface and having a sidewall and a recessed surface formed in the top surface, the sidewall extending from the top surface to the recessed surface in the wafer; a trench formed in the semiconductor wafer, the trench positioned proximal to the recessed surface; and a photoresist material deposited onto the top surface of the semiconductor wafer, the photoresist material covering a top corner of the semiconductor wafer, the top corner comprising a junction between the top surface and the sidewall, the photoresist material extending from the top surface along the sidewall to the recessed surface, wherein the recessed surface preserves coverage of the top corner by supporting a portion of the photoresist material that extends along the sidewall to the top corner.