Polynorbornene foam insulation for integrated circuits

Semiconductor device manufacturing: process – Coating with electrically or thermally conductive material – To form ohmic contact to semiconductive material

Reexamination Certificate

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C438S780000, C438S781000

Reexamination Certificate

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06890847

ABSTRACT:
Methods of providing foamed polynorbornene insulating material for use with an integrated circuit device, as well as apparatus and systems making use of such foamed polynorbornene insulating materials. The methods include forming a layer of polynorbornene material and converting at least a portion of the layer of polynorbornene material to a foamed polynorbornene material, such as by exposing the layer of polynorbornene material to a supercritical fluid. The foamed polynorbornene material can provide electrical insulation between conductive layers of the integrated circuit device.

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