Electronic semiconductor device having a thermal spreader

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Making plural separate devices

Reexamination Certificate

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Details

C438S106000, C438S122000, C438S460000

Reexamination Certificate

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06969637

ABSTRACT:
The electronic device is formed in a die including a body of semiconductor material having a first face covered by a covering structure and a second face. An integral thermal spreader of metal is grown galvanically on the second face during the manufacture of a wafer, prior to cutting into dice. The covering structure comprises a passivation region and a protective region of opaque polyimide; the protective region and the passivation region are opened above the contact pads for the passage of leads.

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