| US 7,473,585 B2 | ||
| Technique for manufacturing an overmolded electronic assembly | ||
| Scott D. Brandenburg, Kokomo, Ind. (US); and David A. Laudick, Kokomo, Ind. (US) | ||
| Assigned to Delphi Technologies, Inc., Troy, Mich. (US) | ||
| Filed on Jun. 13, 2005, as Appl. No. 11/150,997. | ||
| Prior Publication US 2006/0281230 A1, Dec. 14, 2006 | ||
| Int. Cl. H01L 21/00 (2006.01) | ||
| U.S. Cl. 438—124 [438/107; 438/110; 438/118; 438/121; 438/122; 438/125; 438/126; 361/717; 361/718] | 15 Claims |
| 1. A method for manufacturing an electronic assembly, comprising the steps of:
providing an aluminum backplate having an indentation in a first side of the backplate;
providing a double-sided substrate having a first side of an integrated circuit (IC) die mounted to a first side of the substrate
and at least one electronic component mounted on a second side of the substrate, wherein the IC die is electrically connected
to one or more of a plurality of electrically conductive traces formed on the first side of the substrate, and wherein the
substrate includes a hole approximate an outer edge of the IC die;
positioning the first side of the substrate in contact with at least a portion of the first side of the backplate, wherein
the IC die is positioned within the indentation with a second side of the IC die in thermal contact with the backplate; and
overmolding the substrate and at least a portion of the backplate with an overmold material, wherein the overmold material
enters the indentation through the hole to substantially underfill the IC die and substantially fill an unoccupied portion
of the indentation.
|