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Gallium Arsenide

Gallium Arsenide (GaAs) is commonly used in conjunction with Aluminium Gallium Arsenide (AlGaAs) to form mirrors in optoelectronic devices such as VCSELs. It is also forms part of the Multi Wells (MQWs) that are key to the performance of many devices. AlGaAs may be dry etched using Inductively Coupled Plasma (ICP), Reactive Ion Etching (RIE) or Ion Beam Etch (IBE). Etch processes can be either selective or non-selective to GaAs depending on the requirements.

GaAs

Excellent profile with feature foot and smooth etched at etching rate. 

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GaAs/AlGaAs ICP Etching

GaAs/AlGaAs may be etched using the Reactive Ion Etching (RIE) process. Excellent profile with feature foot and smooth etched .

  • Single wafer size: up to 200mm
  • Batch size: up to 6x2"
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GaAs/AlGaAs RIE

GaAs/AlGaAs multilayer etch

GaAs may be etched using the Reactive Ion Beam Etch (RIBE) process technique. 

Competitive etching rate, selectivity and profile.

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GaAs RIBE

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