Inventors:
Jan Strandberg - San Jose CA, US
Richard Trevino - San Jose CA, US
Thomas Blount - San Jose CA, US
Assignee:
Kulicke & Soffa Investments, Inc. - Wilmington DE
International Classification:
H01L023/053, H01L023/12, H01L023/34, H01L023/48, H01L023/52, H01L029/40
US Classification:
257/778000, 257/737000, 257/738000, 257/700000, 257/774000, 257/758000, 257/712000, 257/704000
Abstract:
A package for mounting an integrated circuit die. In one embodiment the package comprises a metal substrate having first and second primary opposed surfaces and an aperture formed therebetween. A flexible thin film interconnect structure having bottom and top opposing surfaces is formed over the first primary surface of the metal substrate and over the aperture such that a first region of the bottom surface is in direct contact with the first surface of the metal substrate and a second region of the bottom surface is opposite the aperture. Within the second region of the bottom surface are a first plurality of exposed bonding pads having a first pitch appropriate for attaching the integrated circuit die to package. The top surface of the flexible thin film interconnect structure includes a second plurality of exposed bonding pads having a pitch greater than the first pitch.