Inventors:
Mysore Purushotham Divakar - San Jose CA, US
David Keating - Limerick, IE
Antoin Russell - Co. Limerick, IE
Assignee:
Power-One, Inc. - Camarillo CA
International Classification:
H01L 23/34
H01L 23/02
H01L 29/76
US Classification:
257107, 257133, 257698, 257341, 257343, 257401, 257728, 257725, 257724, 257773, 257706, 257786, 361760, 361768, 361720, 361712, 361783, 361767, 174252, 174262
Abstract:
A semiconductor chip package that includes a DC—DC converter implemented with a land grid array for interconnection and surface mounting to a printed circuit board. The package includes a two layer substrate comprising a top surface and a bottom surface. At least one via array extends through the substrate. Each via in a via array includes a first end that is proximate to the top surface of the substrate and a second end that is proximate to the bottom surface of the substrate. At least one die attach pad is mounted on the top surface of the substrate and is electrically and thermally coupled to the via array. The DC—DC converter includes at least one power semiconductor die having a bottom surface that forms an electrode. The power semiconductor die is mounted on a die attach pad such that the bottom surface of the die is in electrical contact with the die attach pad. The bottom of the package forms a land grid array.