Patent ID: 8952395
Filing Date: 2015-02-10
Classification: H01L

Abstract:
1. A method of forming solid-state transducers (SSTs), the method comprising: forming a transducer structure on a growth substrate, the transducer structure having a first surface opposite a second surface, wherein the second surface is proximate to the growth substrate; forming a plurality of trenches extending through the transducer structure and at least partially through the growth substrate; depositing a dielectric isolator and a metallic material sequentially in the trenches to form separators in the trenches that demarcate individual SSTs; forming a support substrate over the first surface of the transducer structure and the separators; and removing the growth substrate from the second surface of the transducer structure without exposing the metallic material and such that at least a portion of the separators remains, the separators forming a plurality of protrusions that extend beyond the second surface of the transducer structure, wherein individual protrusions include a portion of the dielectric isolator, and wherein the portion of the dielectric isolator covers the metallic material and extends beyond the metallic material and the second surface of the transducer structure, wherein removing the growth substrate includes—