Patent ID: 7977208
Filing Date: 2011-07-12
Classification: B81B,B81C,H01L

Abstract:
1. A method comprising: providing a wafer comprising a first side and a second side; forming an opening through the wafer, the opening extending from the first side to the second side; oxidizing the wafer; forming a via in the opening, the forming comprising: forming a micro-electro-mechanical system (MEMS) on the first side of the wafer; forming a lid by creating a recess in a sheet of glass material; and anodically bonding the lid to the first side of the wafer in order to form a hermetic seal between the lid and wafer, the lid being aligned so that the MEMS and the via is disposed within the recess of the lid; wherein the bonding the lid to the wafer occurs in an atmosphere of an inert gas so that the MEMS is hermetically sealed under the lid in the inert gas.