H ELECTRICITY
H01 ELECTRIC ELEMENTS
H01L SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
21/00 Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
H01L21/02 Manufacture or treatment of semiconductor devices or of parts thereof
H01L21/02104 Forming layers
H01L21/02107 Forming insulating materials on a substrate
H01L21/02225 characterised by the process for the formation of the insulating layer
H01L21/0226 formation by a deposition process
H01L21/02263 deposition from the gas or vapour phase
H01L21/02271 deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
H01L21/0228 deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD