Specific Process Knowledge/Etch/ASE (Advanced Silicon Etch): Difference between revisions
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The Bosch process uses alternation between an | The Bosch process uses alternation between an | ||
etch cycle and a passivation cycle. In the case of the silicon etching on the ASE, an etch | etch cycle and a passivation cycle. In the case of the silicon etching on the ASE, an etch | ||
(with SF<sub>6< and O<sub>2<) and passivation (with C4F8) phases. | (with SF<sub>6</sub> and O<sub>2</sub>) and passivation (with C4F8) phases. | ||
Two recipes have been optimized for the ASE: A shallow etch shallolr and a deep etch | Two recipes have been optimized for the ASE: A shallow etch shallolr and a deep etch | ||
deepetch. | deepetch. | ||