Substrate and method for mounting silicon device

Abstract

A substrate on which a silicon device is mounted in accordance with an embodiment of the present invention includes a plurality of protrusions extending upward from a top surface of the substrate and a solder layer formed on the top of the substrate such that the plurality of protrusions extends through the solder layer and a top portion of each protrusion of the plurality of protrusions is stamped down to be level with a top surface of the solder layer such that the silicon device is supported on the plurality of protrusions when placed on the substrate. The protrusions are preferably gouged up from the surface of the substrate with a needle like tool. A stamper tool is used to stamp the protrusions down to their desired height such that they are properly positioned to support the silicon device. The solder layer may be a solder pre-form or may be a layer of solder paste. The solder layer is heated to form liquid solder to bond the substrate and the silicon device, however, the protrusions support the silicon device to prevent movement thereof when the solder is in liquid form.

Dependencies are inferred from the claim text.