Patent ID: 9040355
Filing Date: 2015-05-26
Classification: B81B,B81C,H01L

Abstract:
1. A method of forming sensor packages comprising: providing a sensor wafer having a first side and a second side opposite said first side, said first side including sensors positioned within areas on said first side delineated by first bonding perimeters, and said sensor wafer including first bond pads formed on said first side outside of said areas delineated by said first bonding perimeters; providing a controller wafer having a third side and a fourth side opposite said third side, said third side including control circuitry and second bond pads, and said fourth side including second bonding perimeters; bonding said second bonding perimeters of said controller wafer to said first bonding perimeters of said sensor wafer to form a stacked wafer structure that includes multiple sensor packages; removing portions of said controller wafer to reveal said first bond pads formed on said first side of said sensor wafer; attaching bond wires between corresponding ones of said first and second bond pads; and singulating said stacked wafer structure to produce said sensor packages.