I te whanaketanga o te hangarau, kua noho te umanga optoelectronic, inā koa te hangarau LED (Light Emitting Diode), hei wāhanga nui o ngā pūnaha rama, whakaaturanga, me te whakawhitiwhiti kōrero o te ao hou. He maha ngā mahi nui o te tukanga hanga o ngā LED, ā, he mea nui te whakairo hei whakarite i te mahi me te kounga o te maramara. I te pikinga ake o te tono mō te pai ake o te mahi me te tukatuka pai ake, ka pā nui te whiriwhiri rauemi mō te whakairo ki te tukanga whānui. I roto i tēnei horopaki, kua nui te aro ki te Silicon Carbide (SiC), hei rauemi kawe auaha, mō tana whakamahinga i roto i te whakairo LED.
Ka arotahi tēnei tuhinga ki te whakamahinga o ngā pereti kawe Silicon Carbide i roto i teTe tukanga whakairo LED, te tātari i ō rātou painga, ngā āhuatanga, me te pēhea e arotau ai tēnei rauemi i te tukanga hanga LED.
I. Tirohanga Whānui o te Tukanga Whakairo LED
Ko te whakairo i roto i te tukanga hanga LED e pā ana ki te tikanga e whakamahia ana hei hanga i ngā hanganga moroiti ki runga i te papa haurua-ira, kia tutuki ai ngā āhuatanga whatu me te hiko e hiahiatia ana. Ko te tika me te kounga o te tukanga whakairo ka pā tika ki te mahi a ngā maramara LED, tae atu ki te kanapa, te pāmahana tae, me te whai huatanga o te hiko.
Ka taea te whakarōpū i te whakairo ki te whakairo maroke me te whakairo mākū. Ko te whakairo maroke he whakamahi i te plasma, i te laser rānei mō te whakairo, ā, e whakamahia ana mō ngā mahi tino tika me te whiriwhiri nui. Ko te whakairo mākū, i tētahi atu taha, ka whakamahi i ngā otinga matū hei whakairo i te rauemi, ā, e whakamahia ana mō ngā maimoatanga nui ake. Ahakoa te momo whakairo, ko te whiriwhiri i te rauemi pereti kawe ka pā nui ki ngā hua whakairo me te kounga whakamutunga o te maramara.
II. He Kupu Whakataki ki te Silicon Carbide (SiC)
Karāpi Hiraka (SiC)He rauemi matū te SiC, he mea hanga mai i te silicon (Si) me te waro (C). He maha ngā āhuatanga ā-tinana me te matū pai rawa atu, e pai ai mō ngā tono pāmahana teitei, mana teitei, me te auau teitei. He haurua whakawhiti whānui te SiC, arā, ka taea e ia te mahi pai i raro i ngā āhuatanga uaua, pērā i te ngaohiko teitei me te auau teitei.
Ko ngā āhuatanga matua o te SiC ko:
1. Te Aroturuki Wera TeiteiKo te kawe wera o te SiC he 120-170 W/m·K, he nui ake tēnei i ngā rauemi silicon (Si) tuku iho. Mā tēnei ka taea e te SiC te tuku wera, kia mau tonu ai te pumau i roto i ngā tono mana-teitei.
2. Ātete ki te pāmahana teiteiKa taea e te SiC te tu atu i ngā pāmahana tino tiketike (neke atu i te 1000°C) me te kore e ngaro te mahi, he mea tino pai mō ngā taiao pāmahana teitei.
3. Te Pūmautanga Matū Tino PaiHe ātete te SiC ki te nuinga o ngā tauhohenga matū, ā, he kaha tōna ātete ki te waikura.
4. Āputa WhānuiMā te whānui o te āputa irahiko o SiC ka taea te mahi pai i raro i ngā āhuatanga ngaohiko teitei me te auau teitei, e tika ana mō ngā momo hangarau matatau.
Nā ēnei āhuatanga ka waiho te SiC hei rauemi whai hua mō te whakamahi i roto i te hanga LED, inā koa i roto i te tukanga whakairo.
III. Ngā Painga o ngā Pereti Kawe Silicon Carbide i roto i te Whakairo LED
1.Ātete ki te pāmahana teitei
I te wā o te tukanga whakairo LED, inā koa i roto i te whakairo maroke, ka pāngia te pereti kawe e ngā pāmahana teitei nā te kaha mai i te plasma, i ngā laser rānei. Tērā pea ka ngaro te pumau o te hanganga o ngā rauemi tuku iho pērā i te silicon (Si) me te quartz (SiO₂) ka pāngia e te whānui wera, ka heke te tika. Mā te silicon carbide, me tōna ātete pāmahana teitei pai rawa atu, ka taea te pupuri i te pumau i roto i ngā taiao pāmahana teitei me te kore e rerekē te āhua, e pakaru rānei, kia tika ai te tukanga whakairo.
2.Whakahaere Wera Whakapai Ake
He mea nui te whakahaere wera i roto i te hanga rama LED. Ka puta he wera nui i ngā maramara rama LED kaha-teitei i te wā e whakamahia ana, ā, ki te kore e tukuna tika, ka pā kino ki te mahi a te maramara. Mā te kawe wera teitei o te SiC ka haria te wera mai i te maramara rama LED, ka horahia ki te taiao e karapoti ana, e kore e arotau noa i ngā pānga wera i te wā e keri ana, engari ka whakapai ake hoki i te mahi whānui me te roa o te ora o te rama LED.
3.Te Whakaiti i te Parahanga me te Whakapai Ake i te Tika
I te wā e whakairohia ana te LED, me tino pumau te rauemi o te pereti kawe kia kore ai e tauhohe ki ngā wai, ki ngā hau rānei e whakawai ana, ka pā kino pea ki te tika o te whakairo. Mā te kaha o te ātete o te SiC ki te nuinga o ngā matū whakawai ka taea te pupuri i te pumau mō te wā roa i roto i ngā taiao matū kino. Mā tēnei ka noho tika, ka rite tonu hoki te tukanga whakairo, me te karo hoki i ngā tauhohenga matū kāore e hiahiatia ka pā kino ki te mahi a te LED.
4.Te Whakaiti i te Toenga o te Whakairo
Tērā pea ka tauhohe ngā rauemi pereti kawe tuku iho ki ngā kaitārai, ka waiho i ngā toenga he uaua ki te tango, ka taea te whakararu i te kounga o te tārai me te pā kino ki te mahi a ngā maramara LED. Nā te koretake o te matū o te SiC, ka ārai pai i te whakaputanga o aua toenga, ka hua ake he hua teitei ake me te pono ake o te hua whakamutunga.
5.Te pakari me te pumau teitei
Ehara i te mea he tino pai ngā āhuatanga ā-tinana o te warowaihā silicon engari he roa hoki tōna ora mahi. Ki te whakatauritea ki ētahi atu rauemi, he iti ake te ngāwari o te SiC ki te ngenge, ki te tawhito, ki te pirau rānei i te roanga o te wā, ka whakaiti i ngā utu tiaki me te auau o te whakakapinga. Mā tēnei ka piki ake te pumau whānui o te raina whakaputa.
IV. Ngā Wero me ngā Otinga mō ngā Pereti Kawe SiC i roto i te Whakairo LED
Ahakoa he maha ngā painga o te SiC i roto i te whakairo LED, he maha ngā wero. Tuatahi, he uaua te tukatuka i te SiC nā te mea he tino pakeke, he pakarukaru hoki. Me tino tupato i te wā e tapahi ana, e whakakanapa ana hoki kia kore ai e pakaru ngā rauemi. Tuarua, he nui ake te utu o ngā pereti kawe SiC i ngā rauemi tuku iho, ā, ka piki ake pea te utu whānui o te hanga LED.
Hei whakatika i ēnei wero, kei te mahi ngā kairangahau me ngā miihini ki te whakapai ake i ngā tukanga hanga rauemi SiC me te tūhura i ngā hangarau tukatuka hou hei whakaiti i ngā utu whakaputa me te whakarei ake i te whai huatanga. Hei tauira, mā te arotau i te tukanga tipu tioata me te whakamahi i ngā tikanga tapahi matatau ka taea te whakaiti i te utu o ngā pereti kawe SiC. Hei tāpiri, ka taea e ngā hangarau paninga mata auaha te whakarei ake i te roa me te ātete ki te waikura o te SiC, ka whakapai ake i tana mahi i roto i te whakairo LED.
Wā tuku: Oketopa-22-2025