Patent ID: 9219023
Filing Date: 2015-12-22
Classification: H01L

Abstract:
1. A method of forming a device comprising: forming a recess in a first chip, the recess extending from a second chip surface of the first chip into the first chip, wherein the first chip includes first electrical devices; positioning a second chip within the recess of the first chip, wherein the second chip includes second electrical devices and contact pads electrically connected to the second electrical devices, the contact pads contacting a base of the recess; forming vias in the first chip after the second chip has been positioned within the recess, the vias comprising first vias extending from a first chip surface of the first chip that is opposite the second chip surface into a portion of the first chip to expose the contact pads of the second chip and second vias extending through an entire thickness of the first chip; and simultaneously forming first interconnects within the first vias and second interconnects within second vias, wherein the first interconnects are in direct contact with the contact pads of the second chip.