Application engineering

CVD & PECVD Thin-Film Processing

Define thermal, gas, pressure, plasma, substrate and exhaust requirements before selecting CVD or PECVD equipment.

Decision information

Qualify the configuration before selecting a model.

Application fit: Research and process-development teams preparing a CVD or plasma-assisted deposition requirement.
Temperature / cycle: Defined by the selected configuration and required working cycle. Working and maximum values must be confirmed separately.
Geometry: Substrate and holder geometry, process-tube size, reaction region, heated length and service access define the physical system.
Atmosphere boundary: Precursor, carrier and purge gases, flow, pressure, pumping, exhaust and facility safety boundaries require full review.
Heating / connection: Temperature profile and zones are selected around substrate position; a PECVD route also coordinates the plasma boundary.

Choose CVD or PECVD from the process boundary

Both routes require a controlled reaction environment, but PECVD adds a plasma-generation and coupling requirement. Selection begins with the target process, substrate, chemistry and pressure boundary before equipment layouts are compared.

SubstrateMaterial, dimensions, holder and location inside the reaction region.

ChemistryPrecursors, carrier and purge gases, delivery and residue concerns.

Thermal dutyWorking temperature, zones, gradients and sequence.

Plasma dutyFor PECVD, define plasma region, source boundary and interlocks.

System questions before an RFQ

Which components are already available at the facility?
Where should pressure be measured and controlled?
How are gases isolated, purged and exhausted?
What parts require routine cleaning or replacement?
Which steps must be automated and recorded?

Compare CVD Tube Furnace Systems and PECVD Tube Furnace Systems.