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高濃度ボロンドープ試料の 角度分解X線光電子分光による 濃度分布解析

高濃度ボロンドープ試料の 角度分解X線光電子分光による 濃度分布解析

高濃度ボロンドープ試料の 角度分解X線光電子分光による 濃度分布解析

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(abruptness)<br />

Undrestimation of surface<br />

concentration, c 0 /c(z)<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

λsinθ=0.5nm<br />

c<br />

c<br />

0<br />

= a a<br />

λsinθ=1.0nm<br />

( z) + ln( 10) λ sinθ<br />

0<br />

0 2 4 6 8 10<br />

Abruptness (a), (nm/decade)<br />

c<br />

B concentration (cm -3 )<br />

( z)<br />

= −<br />

10 22<br />

10 21<br />

10 20<br />

10 19<br />

10 18<br />

10 17<br />

1 dI<br />

Aσ<br />

dz<br />

( z)<br />

1<br />

+ I<br />

λσ sinθ<br />

steep profile at surface<br />

after RTA<br />

before RTA<br />

SIMS<br />

10 16 0 5 10 15 20 25 30 35<br />

Distance from surface (nm)<br />

( z)<br />

<br />

λsinθ<br />

Spike-RTA34nm/dec.<br />

5

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