DIAMOND GRAIN-GROWTH ON CU SUBSTRATE

Diamond growth on Cu substrates with vapor phase deposition has been s tudied. Diamond was deposited on Cu substrates using an electron cyclo tron resonance chemical vapor deposition apparatus. Its growth process was observed through morphological variation with time in the same fi eld of vision, which showed that diamond grains on Cu substrates grew not only through increase of the size of grains but also through their combination, and that isolated grains at an early stage of growth mig rated on the substrate as if they were attracted by each other. This m anner of diamond growth is specific to cases where Cu is used as the s ubstrate.