Centura DxZ

Chemical vapor deposition systems form thin films on semiconductor wafers by introducing reactive gases into a controlled process chamber and driving a surface reaction that leaves a solid layer on the wafer. Deposition tools of this class are used to build insulating, barrier, passivation, and other functional films needed during device fabrication.

A CVD system operates by moving process gases into a chamber that holds the wafer, then using controlled temperature and chamber conditions to convert gaseous precursors into a deposited solid film on the wafer surface. Multi chamber deposition platforms generally separate wafer handling from film formation modules so different process conditions can be maintained in different chambers while reducing atmospheric exposure between steps.

Deposition tools in this class are used after wafer surfaces have been prepared by prior patterning, cleaning, or etch steps and before later steps such as lithography, etch, implant, anneal, planarization, or metallization, depending on the layer being formed. CVD modules commonly sit in the middle of the wafer fabrication flow because repeated film formation is needed throughout device build.

CVD equipment is used wherever semiconductor manufacturing requires conformal or blanket thin films across wafer surfaces and topography. Typical application areas for this class include dielectric formation, passivation, encapsulation, liner deposition, and other thin film processes that prepare wafers for subsequent pattern transfer or integration steps.