On-chip power inductor

Details On-chip power inductor On-chip power inductor

2011-01-25

2011-01-25

Shingleton, Michael B (Department: 2815)

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

Integrated circuit structure with electrically isolated...

Passive components in ics

C257S528000, C257S516000, C330S307000, C336S200000

Reexamination Certificate

active

07875955

ABSTRACT:
An on-chip inductor structure for a DC-DC power regulator circuit merges the switching transistor metallization with the inductor. Thick top level conductor metal that is used to strap the transistor array and to lower its on-state resistance is also used to extend the power inductor into the transistor array. Thus, the structure includes three basic components: a power inductor that spirals around the transistor array, the transistor array itself, and the transistor array metallization that is used to form a distributed inductance situated over the transistor array.

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