Ngeminyaka yokunemba okutshaliwei-quartzamasu okucubungula, siyaziqhenya ngokuletha ukunemba okuphezulu kokucubungula kanye nokukhiqiza.
Isetshenziswa ezinqubweni ze-diffusion/oxidation/deposition (CVD).
 		     			
 		     			
 		     			
 		     			
 		     			
 		     			
 		     			Ngeminyaka yokunemba okutshaliwei-quartzamasu okucubungula, siyaziqhenya ngokuletha ukunemba okuphezulu kokucubungula kanye nokukhiqiza.
Isetshenziswa ezinqubweni ze-diffusion/oxidation/deposition (CVD).