Does anyone know of a good selective decoration wet chemical etch for GaAs
that has Al doping?  This is need to show the layers in a polished
cross-ssection. thanks

  Phone (GSFC)  : 301-286-2602
  Phone (Lanham): 301-731-8682
  FAX: (GSFC)     301-286-1695
  Pager:          301-510-4188
  Mailto:[email protected]
  Title: Sr Engineer/Failure Analyst
  Business address:  NASA-Goddard Space Flight Center
                     Mailstop 300.1, Building 6 Room S33
                     Greenbelt, MD 20771