Method of enhanced introduction of impurity species into a semic

Fishing – trapping – and vermin destroying

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437162, 437987, H01L 3100, H01L 3300, H01L 2100, H01L 2122

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048309834

ABSTRACT:
A two step annealing process is utilized for performing imputity induced disordering comprising an initial higher temperature, shorter term or rapid thermal anneal (RTA) treatment followed by a lower temperature, longer term or slow thermal anneal (STA) treatment. This two step impurity induced disordering (IID) anneal process enhances the amount of and depth of impurity species or diffusant penetration into the crystalline structure undergoing IID treatment. Also, it provides for improved accuracy in controlling the extend of impurity species concentration and the extent of its penetration into the cyrstalline structure so that resulting diffusion profiles in such structures can be systematically reproduced.

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