4. Semiconductor device manufacturing: process
  5. Chemical etching
  6. Liquid phase etching

Hanns Wochner

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Apparatus and method for the mechanical comminution of...

Solid material comminution or disintegration – Processes – Miscellaneous
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Apparatus and method for the mechanical comminution of...

Solid material comminution or disintegration – Processes – Miscellaneous
Reexamination Certificate

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Method for cleaning a polysilicon fraction

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Reexamination Certificate

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Method for processing an etching mixture which is formed...

Distillation: processes – separatory – Distilling to separate or remove only water – From nitric acid
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Method for producing a semiconductor material

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
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Profile ID: LFUS-PAI-P-583976

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