Patent ID: 8288191
Filing Date: 2012-10-16
Classification: B81C,H01L

Abstract:
1. A method of forming an inertial sensor, the method comprising: providing a device wafer with a two-dimensional array of MEMS inertial sensors; providing a second wafer; depositing an alloy comprising aluminum/germanium onto one or both the device wafer and the second wafer; coupling the device wafer and the second wafer together after depositing the alloy onto the one or both wafers, the alloy being positioned between the two wafers; heating the alloy before, after, or substantially simultaneously with coupling the alloy; cooling the alloy after melting to form a plurality of conductive hermetic seal rings about the plurality of the inertial sensors, the seal rings bonding the device wafer to the second wafer; and dicing the wafers to form a plurality of individual, hermetically sealed inertial sensors.