Kua wehea te paparanga warowaihā silicon ki te momo haurua-whakamarumaru me te momo kawe hiko. I tēnei wā, ko te whakatakotoranga matua o ngā hua paparanga warowaihā silicon haurua-whakamarumaru he 4 inihi. I roto i te mākete warowaihā silicon kawe hiko, ko te whakatakotoranga hua paparanga matua o nāianei he 6 inihi.
Nā ngā tono o raro iho i te mara RF, kei raro i te mana whakahaere kaweake a ngā papa SiC haurua-whakamarumaru me ngā rauemi epitaxial e te Tari Tauhokohoko o Amerika. Ko te SiC haurua-whakamarumaru hei papa te rauemi pai mō te heteroepitaxy GaN, ā, he nui ngā tūmanakohanga tono i roto i te mara ngaruiti. Ki te whakatauritea ki te kore ōrite o te karaihe o te hapaira 14% me te Si 16.9%, ko te kore ōrite o te karaihe o ngā rauemi SiC me GaN he 3.4% noa iho. I te taha o te kawe wera tino teitei o te SiC, he nui ngā painga o ngā taputapu ngaruiti LED me te GaN auau teitei me te mana teitei i hangaia e ia i roto i te radar, ngā taputapu ngaruiti mana teitei me ngā pūnaha whakawhitiwhiti 5G.
Ko te rangahau me te whanaketanga o te papa SiC haurua-whakamarumaru te kaupapa matua o te rangahau me te whanaketanga o te papa tioata kotahi SiC. E rua ngā uauatanga matua i roto i te whakatipu rauemi SiC haurua-whakamarumaru:
1) Whakaitihia ngā poke o te kaituku N e whakaurua mai ana e te oko graphite, te mimiti whakamahana wera me te tāpiri i roto i te paura;
2) I te mea e whakarite ana i te kounga me ngā āhuatanga hiko o te tioata, ka whakauruhia he pokapū taumata hohonu hei utu i ngā paru taumata papaku e toe ana ki te mahi hiko.
I tēnei wā, ko ngā kaihanga he kaha whakaputa SiC haurua-whakamaroke ko SICC Co, Semisic Crystal Co, Tanke Blue Co, Hebei Synlight Crystal Co., Ltd.
Ka tutuki te tioata SiC kawe hiko mā te werohanga hauota ki roto i te hau e tipu haere ana. Ko te papa hiko silicon carbide kawe hiko e whakamahia ana i roto i te hanga taputapu hiko, ngā taputapu hiko silicon carbide me te ngaohiko teitei, te au teitei, te pāmahana teitei, te auau teitei, te iti o te ngaronga me ētahi atu painga ahurei, ka tino whakapai ake i te whakamahinga o ngā taputapu hiko e ahu mai ana i te silicon, he pānga nui, he whānui hoki ki te mara o te huringa hiko whai hua. Ko ngā wāhi tono matua ko ngā waka hiko/pouaka utu, te pūngao hou photovoltaic, te tereina, te whatunga atamai me ētahi atu. Nā te mea ko te nuinga o ngā hua kawe hiko he taputapu hiko i roto i ngā waka hiko, te photovoltaic me ētahi atu mara, he whānui ake te tirohanga tono, ā, he maha ake ngā kaihanga.
Momo tioata silicon carbide: Ka taea te wehewehe i te hanganga noa o te silicon carbide tioata 4H pai rawa atu ki ngā wāhanga e rua, ko tētahi ko te momo tioata silicon carbide poraka o te hanganga sphalerite, e mōhiotia ana ko te 3C-SiC, β-SiC rānei, ā, ko tētahi ko te hanganga hexagonal, taimana rānei o te hanganga wā nui, he mea noa mō te 6H-SiC, 4H-sic, 15R-SiC, me ētahi atu, e mōhiotia whānuitia ana ko te α-SiC. He painga nui tō te 3C-SiC mō te ātete teitei i roto i ngā taputapu hanga. Heoi, ko te kore taurite nui i waenga i ngā pūmau whatunga Si me SiC me ngā tauwehenga whānui wera ka arahi ki te maha o ngā hapa i roto i te paparanga epitaxial 3C-SiC. He nui te kaha o te 4H-SiC ki te hanga MOSFET, nā te mea he pai ake te tipu tioata me ngā tukanga tipu paparanga epitaxial, ā, i runga i te nekehanga irahiko, he teitei ake te 4H-SiC i te 3C-SiC me te 6H-SiC, e whakarato ana i ngā āhuatanga ngaruiti pai ake mō ngā MOSFET 4H-SiC.
Mena he takahi, mukua te whakapā atu
Te wā tuku: Hurae-16-2024