Patent ID: 7323355
Filing Date: 2008-01-29
Classification: B81B,B81C,G01P

Abstract:
1. A method of forming a microelectronic device comprising the steps of: forming a sensor component, comprising a sensor structure and a conductive trace on a first SOI semiconductor wafer; forming a capping component, comprising a capping layer on a second SOI semiconductor wafer; bonding the first SOI semiconductor wafer to the second SOI semiconductor wafer such that the sensor structure is enclosed within a microcavity formed between the first and second SOI semiconductor wafers; wafer thinning the first SOI semiconductor wafer and the second SOI semiconductor wafer subsequent to bonding first SOI semiconductor wafer to the second SOI semiconductor wafer by etching away a handle layer of the first SOI semiconductor wafer and a handle layer of the second SOI semiconductor wafer; forming a through hole in the capping component to expose the conductive trace formed on the first SOI semiconductor wafer such that the conductive trace is external to the microcavity.