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Strains and stresses in GaN heteroepitaxy – sources and ... - Laytec

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Homebuilt <strong>in</strong>-situ curvature sensor<br />

on an AIX 200/4 RF-S<br />

Curvature measurements<br />

Intensity (arb. u.)<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

AlN<br />

heat up<br />

<strong>GaN</strong><br />

AlN<br />

reflected <strong>in</strong>tensity<br />

<strong>GaN</strong><br />

AlN<br />

0 2000 4000 6000 8000 10000<br />

Time (s)<br />

<strong>GaN</strong><br />

In<strong>GaN</strong><br />

<strong>GaN</strong>

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