4H-N Dia205mm SiC hua mai Kina P a me D ka Monocrystaline

ʻO ke ʻano PVT (Physical Vapor Transport) kahi ala maʻamau i hoʻohana ʻia no ka ulu ʻana i nā kristal carbide hoʻokahi. Ma ke kaʻina hana ulu PVT, waiho ʻia nā mea ʻeleʻele silicon carbide e ka hoʻoheheʻe kino a lawe ʻia ma luna o nā kristal hua silika carbide, no laila e ulu ai nā kristal hoʻokahi silicon carbide hou ma ke ʻano o nā hua kristal.

Ma ke ʻano PVT, ʻo ka silicon carbide seed crystal ka mea nui ma ke ʻano he kumu hoʻomaka a me ka laʻana no ka ulu ʻana, e hoʻohuli ana i ka maikaʻi a me ke ʻano o ka kristal hoʻokahi hope loa. I ka wā o ka ulu ʻana o ka PVT, ma ka hoʻomalu ʻana i nā ʻāpana e like me ka mahana, ke kaomi a me ka hoʻohui ʻana i ka gas-phase, hiki ke hoʻokō ʻia ka ulu ʻana o nā kristal carbide hoʻokahi e hana i nā mea nui-nui, kiʻekiʻe kiʻekiʻe.

ʻO ke kaʻina hana ulu i hoʻokumu ʻia ma luna o nā kristal huaʻai silicon carbide e ke ʻano PVT he mea koʻikoʻi nui ia i ka hana ʻana i nā crystals silicon carbide hoʻokahi, a he hana nui i ka loaʻa ʻana o nā mea kiʻekiʻe kiʻekiʻe, nui-nui silicon carbide single-crystal.

ʻO ka 8inch SiCseed crystal a mākou e hāʻawi nei he mea kakaikahi loa i ka mākeke i kēia manawa. Ma muli o ka paʻakikī ʻenehana kiʻekiʻe, ʻaʻole hiki i ka hapa nui o nā hale hana ke hāʻawi i nā kristal hua nui. Eia nō naʻe, mahalo i ko mākou pilina lōʻihi a pili pū me ka hale hana silicon carbide Kina, hiki iā mākou ke hāʻawi i kā mākou mea kūʻai aku me kēia 8-inch silicon carbide seed wafer. Inā he mau hemahema kāu, e ʻoluʻolu e kelepona mai iā mākou. Hiki iā mākou ke kaʻana mua iā ʻoe i nā kikoʻī.