摘要 |
A grid array interconnect structure and method for interconnecting and removing a high density multichip interconnect decal, or grid array package, to and from a printed wiring board. The interconnect structure comprises conductive epoxy interconnects and nonconductive transfer tape that has adhesive disposed on both sides thereof. The transfer tape is applied to the back of the high density multichip interconnect decal or package. Conductive epoxy is disposed in pre-formed holes of the two-sided transfer tape and is partially cured to a semi-rigid condition to form the conductive epoxy interconnects. A mylar film may be applied to the exposed surface of the transfer tape. With the mylar film removed from the surface of the transfer tape, the decal or package is secured to the printed wiring board and a slight force is applied. This assembly is then cured. The decal or package may be removed and replaced without damage to the printed wiring board by reheating the assembly to soften the transfer tape and interconnects.
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