Patent ID: 8895344

Claim:
A method of forming an image sensor package, comprising: providing an image sensor chip that includes a substrate with front and back opposing surfaces, a plurality of photo detectors formed at the front surface, and a plurality of contact pads formed at the front surface which are electrically coupled to the photo detectors; providing a crystalline handler having opposing first and second surfaces; attaching the image sensor chip substrate front surface to the crystalline handler second surface; forming a cavity into the first surface; forming a compliant dielectric material in the cavity; forming a plurality of electrical interconnects, each formed by: forming a hole with a first portion extending from the second surface to the cavity and a second portion extending through the compliant dielectric material, wherein the hole is aligned with one of the contact pads, forming a layer of insulation material along a sidewall of the first portion of the hole, and forming conductive material that extends through the first and second portions of the hole, wherein the conductive material is electrically coupled to the one contact pad.