STRESS ARREST LIP ON COPPER PAD FOR LOW ROUGHNESS COPPER
摘要:
A system includes a metallic contact integrated onto a semiconductor integrated circuit substrate. The metallic contact has a contact surface to make electrical contact with a trace through a dielectric layer over the semiconductor circuit substrate and the metallic contact. The semiconductor circuit can include a trace that connects the contact to a package pad to enable external access to the signal from off the semiconductor circuit. The metallic contact includes a vertical lip extending vertically into the dielectric layer above the contact surface.
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