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A 90 nm Communication Technology Featuring SiGe HBT ...

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Hi-Q Q Inductors and substrates<br />

PEAK Q<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

50 ohm-cm<br />

w/o parasitic<br />

control<br />

P+epi<br />

w/o parasitic<br />

control<br />

50 ohm-cm<br />

with parasitic<br />

control<br />

P+ epi<br />

with parasitic<br />

control<br />

0.1 1 10 100<br />

FREQUENCY (GHz)<br />

IEDM 2002 34

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