Enter the total depth (microns) and the total time (min) into the Etch Rate Calculator. The calculator will evaluate the Etch Rate. 

Etch Rate Formula

The following two example problems outline the steps and information needed to calculate the Etch Rate.

ER = D / T


  • ER is the Etch Rate (microns/min)
  • D is the total depth (microns) 
  • T is the total time (min) 

To calculate the etch rate, divide the total depth by the total time.

How to Calculate Etch Rate?

The following steps outline how to calculate the Etch Rate.

  1. First, determine the total depth (microns). 
  2. Next, determine the total time (min). 
  3. Next, gather the formula from above = ER = D / T.
  4. Finally, calculate the Etch Rate.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total depth (microns) = 3

total time (min) = 20

ER = D / T = ?