What is sccm?
Understanding standard cubic centimeters per minute (sccm), the standard unit for volumetric gas flow in semiconductor manufacturing.
sccm (standard cubic centimeters per minute) is the most common unit for expressing gas flow rates in semiconductor manufacturing and vacuum systems. It represents the volumetric flow of gas, corrected to standard conditions.
At STP (Standard Temperature and Pressure: 0°C, 101.325 kPa), one sccm equals one cubic centimeter of gas flowing per minute. This standardization allows engineers to compare flow rates across different gases and equipment.
MFCs (Mass Flow Controllers) in semiconductor equipment are typically calibrated and specified in sccm or slm (standard liters per minute). Understanding sccm is essential for recipe development, process control, and equipment selection.