ME PĒHEA TE HANGA I TE WAIHANGA HIROKI
A papaHe poro silicon tata ki te 1 mirimita te matotoru, he papatahi rawa te mata nā ngā tikanga hangarau tino uaua. Mā te whakamahinga i muri mai ka whakatauhia ko tēhea tikanga whakatipu tioata me whakamahi. Hei tauira, i roto i te tukanga Czochralski, ka rewahia te silicon polycrystalline, ā, ka tukuna he tioata purapura angiangi rite ki te pene ki roto i te silicon rewa. Kātahi ka hurihia te tioata purapura, ka tōia mārire ki runga. Ka puta he kohatu nui tino taumaha, he tioata kotahi. Ka taea te tīpako i ngā āhuatanga hiko o te tioata kotahi mā te tāpiri i ngā waeine iti o ngā tāpiringa parakore teitei. Ka tāpirihia ngā tioata kia rite ki ngā whakaritenga a te kiritaki, kātahi ka orohia, ka tapahia kia poro. Whai muri i ngā mahi whakaputa tāpiri, ka whiwhi te kiritaki i āna wafer kua tohua i roto i te takai motuhake, e āhei ai te kiritaki ki te whakamahi tonu i te wafer i roto i tana raina whakaputa.
TE TUKANGA CZOCHRALSKI
I ēnei rā, he nui te wāhanga o ngā tioata silicon monocrystals e whakatipuhia ana i runga i te tukanga Czochralski, arā, ko te whakarewa i te silicon polycrystalline teitei-parakore i roto i te ipu quartz hyperpure me te tāpiri i te dopant (ko te tikanga ko B, P, As, Sb). Ka toua he tioata purapura angiangi, monocrystalline ki roto i te silicon rewa. Kātahi ka puta he tioata CZ nui mai i tēnei tioata angiangi. Mā te whakahaere tika i te pāmahana me te rere o te silicon rewa, te hurihanga o te tioata me te ipu, me te tere kukume o te tioata ka hua ake he ingot silicon monocrystalline kounga teitei rawa atu.
TIKANGA ROHE MANU
He pai rawa ngā tioata kotahi i hangaia i runga i te tikanga rohe pōrewa mō te whakamahi i roto i ngā wāhanga haurua hiko, pērā i ngā IGBT. Kei runga i te koiri whakapūmau he ingota silicon polycrystalline porotaka. Ka āwhina te mara hiko auau reo irirangi ki te whakarewa i te silicon mai i te wāhanga o raro o te tokotoko. Ka whakahaere te mara hiko i te rere o te silicon mā roto i tētahi kōhao iti i roto i te koiri whakapūmau, ā, ki runga i te tioata kotahi kei raro (tikanga rohe pōrewa). Ko te tāpiri, ko te nuinga o te wā me te B, te P rānei, ka tutuki mā te tāpiri i ngā matū hau.
Wā tuku: Pipiri-07-2021