Patent ID: 8497146
Filing Date: 2013-07-30
Classification: H01L

Abstract:
1. A method of forming solid-state transducers (SSTs) having a first side and second side facing away from the first side, the method comprising: forming a transducer structure having an active region positioned between a first semiconductor material and a second semiconductor material, wherein the first semiconductor material is at the first side of the SST and the second semiconductor material is at the second side of the SST, wherein forming the transducer structure comprises forming the transducer structure on a growth substrate, the second semiconductor material being proximate to the growth substrate; forming a first contact electrically coupled to the first semiconductor material; forming a buried second contact electrically coupled to the second semiconductor material; disposing a conductive carrier substrate on the first side of the SST, and electrically coupling the first and second contacts to the conductive carrier substrate; forming a first terminal from a first portion of the conductive carrier substrate, the first terminal being electrically coupled to the first contact; and forming a second terminal from a second portion of the conductive carrier substrate, the second terminal being electrically coupled to the second contact and electrically isolated from the first terminal, the first and second terminals both being accessible from the first side of the SST; forming a plurality of trenches extending from the first side of the SST at least partially into the growth substrate; forming separators in the trenches that demarcate individual SSTs; and removing the growth substrate from the second semiconductor material such that at least a portion of each separator extends beyond the second semiconductor material to form a plurality of protrusions.