Patent ID: 8900927
Filing Date: 2014-12-02
Classification: H01L,Y10T

Abstract:
1. A method, comprising: contacting pistons of a lid with respective ones of chips on a chip carrier by lowering the lid toward the respective ones of the chips and releasably detaching the pistons from the lid; fixing the pistons to the lid after the pistons are in contact with the respective ones of the chips, and thereafter; separating the lid and the chip carrier by moving the lid with the pistons attached thereto away from the chip carrier, and thereafter; planarizing the pistons with a top surface of the lid by a grinding or a cutting process, and thereafter; placing at least one seal shim on one of the lid and chip carrier, the at least one seal shim having a thickness that results in a gap of varying heights between the pistons with the respective ones of the chips on the chip carrier based on the contacting step; dispensing thermal interface material within the gap and in contact with the chips; and sealing the lid to the chip carrier with the at least one seal shim between the lid and the chip carrier.