Acid Bench 23

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Acid Bench 23
Equipment Details
Technology Process Technology
Materials Restriction Metals
Equipment Manual
Overview System Overview
Operating Procedure SOP
Supported Processes Supported Processes
User Processes User Processes
Maintenance Maintenance

Warning Warning: This piece of equipment has been retired. Has been moved and renamed to Acid Bench 80

The Acid Bench 23 is an acid bench dedicated to etching of III-V materials (GaAs, GaAlAs, InP, GaN, etc), pieces of Si and glass.


Acid Bench 23 is being taken offline and is being moved to 1440A. It will be rebranded as Acid Bench 80. All processing can be moved to Acid Bench 73 in the meantime.

System overview

Hardware details

  • Chemicals

Substrate requirements

  • Pieces
  • III-V, Si and glass
  • Small beaker and small tank processing

Material restrictions

The Acid Bench 23 is designated as a Metals class tool. Below is a list of approved materials for the tool. Approved means the material is allowed in the tool under normal circumstances. If a material is not listed, please create a helpdesk ticket or email for any material requests or questions.

Supported processes

There are several processes for this tool supported by the LNF, which are described in more detail on the Processes page.

In addition to these, this tool has a number of user-created recipes for etching a wide variety of materials. Some of these recipes are documented on Acid Bench 23 user processes. If you are curious if your material can be processed in this tool, please contact the tool engineers via the helpdesk ticket system.

Standard operating procedure

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Checkout procedure

  1. Read through this page and the Standard Operating Procedure above.
  2. Complete the training request form here.
  3. Create a Helpdesk Ticket requesting training.
  4. A tool engineer will schedule a time for initial training.
  5. Practice with your mentor or another authorized user until you are comfortable with tool operation.
  6. Complete the SOP quiz here.
  7. Schedule a checkout session with a tool engineer via the helpdesk ticket system. If this checkout is successful, the engineer will authorize you on the tool.


Process name