ʻO nā mea hana semiconductor surface -SiC (silicon carbide) o ke kolu o ka hanauna a me kā lākou mau noi

Ma ke ʻano he ʻano mea semiconductor hou, ua lilo ʻo SiC i mea semiconductor koʻikoʻi loa no ka hana ʻana i nā mea optoelectronic pōkole-nalu, nā mea wela kiʻekiʻe, nā mea pale radiation a me nā mea uila mana kiʻekiʻe/mana kiʻekiʻe ma muli o kona mau waiwai kino a me ke kemika maikaʻi loa a me nā waiwai uila. ʻOi loa aku ka maikaʻi o nā ʻano o nā mea SiC ma mua o nā mea Si a me nā mea GaAs. No laila, ua lilo mālie nā mea SiC a me nā ʻano sensor like ʻole i hoʻokahi o nā mea nui, e pāʻani ana i kahi hana koʻikoʻi.

Ua ulu wikiwiki nā mea hana a me nā kaapuni SiC mai ka makahiki 1980, ʻoi aku hoʻi mai ka makahiki 1989 i ka wā i komo ai ka wafer substrate SiC mua i ka mākeke. Ma kekahi mau kahua, e like me nā diode hoʻomālamalama, nā mea hana mana kiʻekiʻe a me nā mana kiʻekiʻe, ua hoʻohana nui ʻia nā mea hana SiC ma ke kālepa. He wikiwiki ka hoʻomohala ʻana. Ma hope o kahi kokoke i 10 mau makahiki o ka hoʻomohala ʻana, ua hiki i ke kaʻina hana mea hana SiC ke hana i nā mea hana kālepa. Ua hoʻomaka kekahi mau ʻoihana i hōʻike ʻia e Cree e hāʻawi i nā huahana kālepa o nā mea hana SiC. Ua hana pū nā ʻoihana noiʻi kūloko a me nā kulanui i nā hoʻokō maikaʻi i ka ulu ʻana o nā mea SiC a me ka ʻenehana hana mea hana. ʻOiai he ʻoi aku ka maikaʻi o nā waiwai kino a me nā kemika o ka mea SiC, a ua oʻo hoʻi ka ʻenehana mea hana SiC, akā ʻaʻole ʻoi aku ka maikaʻi o ka hana o nā mea hana a me nā kaapuni SiC. Ma waho aʻe o ka mea SiC a me ke kaʻina hana mea pono e hoʻomaikaʻi mau ʻia. Pono e hoʻoikaika hou aku i ka pehea e hoʻohana ai i nā mea SiC ma ka hoʻomaikaʻi ʻana i ke ʻano o ka mea hana S5C a i ʻole ka hāpai ʻana i ke ʻano o ka mea hana hou.

I kēia manawa. ʻO ka noiʻi ʻana o nā mea SiC e kālele nui ana i nā mea hana ʻokoʻa. No kēlā me kēia ʻano o ke ʻano o ka mea hana, ʻo ka noiʻi mua ka hoʻoili wale ʻana i ke ʻano o ka mea hana Si a GaAs paha i SiC me ka ʻole o ka hoʻomaikaʻi ʻana i ke ʻano o ka mea hana. ʻOiai ʻo ka papa oxide intrinsic o SiC ua like ia me Si, ʻo ia hoʻi ʻo SiO2, ʻo ia hoʻi, hiki ke hana ʻia ka hapa nui o nā mea hana Si, ʻoiai nā mea hana m-pa, ma SiC. ʻOiai he hoʻoili maʻalahi wale nō ia, ua loaʻa i kekahi o nā mea hana i loaʻa nā hopena maikaʻi, a ua komo mua kekahi o nā mea hana i ka mākeke hale hana.

Ua komo nā mea hana optoelectronic SiC, ʻoiai nā diode hoʻopuka kukui polū (BLU-ray leds), i ka mākeke i ka hoʻomaka ʻana o nā makahiki 1990 a ʻo ia nā mea hana SiC mua i hana nui ʻia. Loaʻa pū kekahi mau diode SiC Schottky kiʻekiʻe, nā transistors mana SiC RF, nā SiC MOSFET a me nā mesFET ma ke kālepa. ʻOiaʻiʻo, ʻo ka hana o kēia mau huahana SiC āpau he mamao loa ia mai ka pāʻani ʻana i nā ʻano super o nā mea SiC, a pono e noiʻi ʻia a hoʻomohala ʻia ka hana ikaika a me ka hana o nā mea SiC. ʻAʻole hiki i kēlā mau hoʻololi maʻalahi ke hoʻohana piha i nā pono o nā mea SiC. ʻOiai ma kahi o kekahi mau pono o nā mea SiC. ʻAʻole hiki i kekahi o nā mea SiC i hana mua ʻia ke hoʻohālikelike i ka hana o nā mea Si a i ʻole CaAs e pili ana.

I mea e hoʻololi maikaʻi ai i nā pono o nā ʻano mea SiC i nā pono o nā mea SiC, ke aʻo nei mākou i kēia manawa pehea e hoʻonui ai i ke kaʻina hana hana a me ke ʻano o ka mea hana a i ʻole e hoʻomohala i nā ʻano hou a me nā kaʻina hana hou e hoʻomaikaʻi i ka hana a me ka hana o nā mea SiC.