Gold Layer on a Condenser Diaphragm

FAQ #4874 Updated March 14, 2016

Question:

How thick is the gold layer on a condenser microphone diaphragm?

Answer:

A typical layer thickness is around 400 Angstroms of gold on a diaphragm. This equals a thickness of 0.00000156 inch.  

The Angstrom unit is one ten-billionth of a meter; or 0.0000000039 inch.

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