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Applications / Production<br />

Qualification of LED substrates<br />

CONFIDENTIAL<br />

• TDs show as dark spot due to<br />

non-radiative recombination in<br />

their vicinity<br />

• Easy measure of TDD<br />

• TDD ≃ 30 ⨉ 10 6 cm -2<br />

10µm<br />

10µm<br />

SE<br />

LED failure analysis<br />

CL<br />

© 2013 Attolight AG. All Rights Reserved.<br />

19

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