Patent ID: 7767493
Filing Date: 2010-08-03
Classification: H01L,Y10T

Abstract:
1. A method of physically and electrically joining two chips, the method comprising: aligning an electrically conductive first contact on a first chip with a corresponding electrically conductive second contact on a second chip, wherein the first contact comprises a rigid material, and wherein the second contact comprises a malleable material; bringing the aligned first contact into contact with the second contact; elevating a temperature of the first and second contacts to an elevated temperature, wherein the elevated temperature is below a liquidus temperature of the rigid material and a liquidus temperature of the malleable material, while applying a pressure to the first and second chips sufficient to cause the rigid material to penetrate the malleable material and to thereby form an electrically conductive first connection between the first chip and the second chip; and following said forming an electrically conductive first connection, cooling the first and second contacts to an ambient temperature.