Process of grounding heat spreader/stiffener to a flip chip...

Details Process of grounding heat spreader/stiffener to a flip chip... Process of grounding heat spreader/stiffener to a flip chip...

2011-06-28

2011-06-28

Roman, Angel (Department: 2812)

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

Insulating material

C257S712000, C257S713000, C257S778000, C257SE23080, C257SE23101, C438S106000, C438S108000, C438S118000, C438S125000

Reexamination Certificate

active

07968999

ABSTRACT:
A method of grounding a heat spreader/stiffener to a flip chip package comprising the steps of attaching an adhesive film to a substrate and attaching a stiffener to the adhesive film. The adhesive film may have a number of first holes corresponding with a number of grounding pads on the substrate. The grounding pads may be configured to provide electrical grounding. The stiffener may have a number of second holes corresponding with the number of first holes of the adhesive film and number the grounding pads of the substrate. The grounding pads are generally exposed through the first and the second holes.

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