Papanga Papatahi Hapaira – Whatu, Ārahi-ārahi, me te Wafer Whakamātautau

Papanga Pātea Tapawhā Hapaira – Atahanga Matua o te Whatu, te Ārahi-ā-Waea, me te Wafer Whakamātautau

Whakaahuatanga Poto:

Ko te papa tapawhā hapaira e whakaaturia ana i te ahua he rauemi konumohe waikura kotahi-kiriata (Al₂O₃) he tino parakore, he mea hanga kia tutuki ai ngā whakaritenga uaua o ngā pūnaha whatu matatau, te tukatuka haurua-ira, me te whakamātautau taputapu tino tika. I hangaia mā roto i ngā tikanga tipu tioata matatau pērā i te tukanga Kyropoulos (KY) Czochralski (CZ) rānei, e whakaatu ana tēnei papa hapaira i te māramatanga whatu tino pai, te pakeke tino pai, me te pumau matū whakamiharo, he mea pai mō ngā tono ahumahi mahi-teitei.

Tukua mai he īmēra ki a mātou

Ngā Āhuatanga

Kauwhata Taipitopito

He Tirohanga Whānui mō te Papanga Papatahi Sapphire

Ko te papa tapawhā hapaira, e whakaaturia ana i te ahua, he wāhanga konumohe waikura kotahi-kiriata (Al₂O₃) he tino parakore, i hangaia hei whakamahi i roto i te hangarau whatu matatau, te hanga taputapu haurua-ira, me te whakamātautau taputapu tino tika. He rongonui mō ōna āhuatanga ā-tinana me te matū tino pai, kua noho te hapaira hei tetahi o ngā rauemi tino nui i roto i ngā ahumahi e hiahia ana ki te roa, te pumau, me te mahi whatu. I hangaia mā roto i ngā tikanga tipu tioata matatau, pērā i te Kyropoulos (KY), te Tikanga Whakawhiti Wera (HEM), te Czochralski (CZ) rānei, ka hangaia ēnei tapawhā kia tutuki ai ngā paerewa kounga teitei.

Ngā Āhuatanga Matua o te Papa Tāpae Tapawhā Sapphire

He tioata uniaxial, anisotropic te hapaira, he hanganga hexagonal tōna, e tuku ana i tētahi huinga tino pai o te kaha miihini, te pumau wera, me te ātete matū. Me te whakatauranga pakeke Mohs o te 9, ko te hapaira te tuarua o te taimana anake i runga i te ātete rakuraku, e whakarite ana i te roa o te ora ahakoa i raro i ngā āhuatanga ahumahi pakaru. Neke atu i te 2000°C tōna ira rewa, e āhei ai te mahi pono i roto i ngā taiao pāmahana teitei, ā, ko tōna iti o te mate dielectric e waiho ana hei rauemi papa pai mō ngā tono hiko RF me te auau teitei.

I roto i te ao whatu, he whānui te awhe tuku o te hapaira mai i te hihi ultraviolet hohonu (~200nm) tae atu ki te hihi infrared waenga (~5000nm), he tino ōrite te whatu me te iti o te birefringence ina tika te whakatakoto. Nā ēnei āhuatanga ka tino hiahiatia ngā papa tapawhā hapaira i roto i ngā mara e nui ana te whatu pēnei i ngā pūnaha taiaho, te photonics, te spectroscopy, me te whakaahua.

Te Hanga me te Tukatuka

Ka pāngia ia papa tapawhā hapaira e tētahi tukanga whakaputa pakari, ka tīmata ki ngā paura alumina mata parakore-teitei kua tukuna ki raro i te tipu tioata whakahaeretia i roto i ngā oumu pāmahana-tiketike. I muri i te whakatipu i te tioata nui, ka whakatakotoria kia tika te whakatakotoranga (ko te nuinga he papa-C (0001), he papa-A (11-20), he papa-R rānei (1-102)) kia rite ki ngā whakaritenga motuhake o te tono. Kātahi ka tapatapahia te tioata kia rite ki ngā papa tapawhā me ngā kani kua pania ki te taimana, ā, muri iho ka tapatapahia kia rite te matotoru. Mō ngā tono whatu me ngā tono haurua-ira, ka taea te whakakanapa i ngā mata ki te maeneene taumata-atomika, kia tutuki ai ngā whakaritenga papatahi, whakarara, me te taratara o te mata.

Ngā Painga Matua

Te Māramatanga Whatu Tino Pai– Mā te whānui o te whakawhiti mai i te UV ki te IR, he mea tino pai mō ngā matapihi whatu, ngā poka taiaho, me ngā taupoki pūoko.
Kaha Mīhini Tino Pai– Mā te kaha pēhanga teitei, te pakari whati, me te ātete ki te rakuraku ka roa te ora i roto i ngā taiao ahotea nui.
Te Pūmautanga o te Wera me te Matū– Ātete ki te ru wera, ki ngā pāmahana teitei, me ngā matū kaha, e mau tonu ana te pono i te wā e tukatukahia ana te haurua-haurua me te pānga kino ki te taiao.
Mana Whakahaere Ahu Tika– Ngā āheinga matotoru e taea te whakatutuki i roto i te ±5µm me te papatahi o te mata tae atu ki te λ/10 (i te 632.8nm), he mea nui mō ngā tono whakaahua me te hononga wafer.
Ngā momo mahi– He pai mō ngā momo whakamahinga tae atu ki ngā wāhanga whatu, ngā papa tipu epitaxial, me ngā anga whakamātautau mīhini.

Ngā tono

Ngā tono whatuNā te mārama me te roa o te māramatanga whatu, e whakamahia ana hei matapihi, hei tātari, hei pupuri reo whakanui taiaho, hei taupoki tiaki mō ngā pūoko, me ngā papa whakaahua.
Ngā Papa Whakatakotoranga Ā-HaumaruHei turanga taketake mō ngā LED e hangai ana ki te GaN, ngā hikohiko mana (ngā hanganga SiC-i runga i te hapaira), ngā taputapu RF, me ngā ara iahiko moroiti hiko, he mea nui te kawe wera me te ātete matū.
Whakamātautau Taputapu me ngā Waferi TauiraE whakamahia pinepine ana hei papa whakamātautau i roto i ngā raina hanga haurua-haurua, e whakamahia ana mō te whakatikatika mīhini, te whakatauira tukanga, me te whakamātautau manawanui o ngā taputapu whakairo, whakatakotoranga, tirotiro rānei.
Rangahau PūtaiaoHe mea nui mō ngā whakatakotoranga whakamātautau e hiahia ana i ngā tūāpapa kore mahi, mārama, me te pumau ā-mīhini mō ngā rangahau whatu, hiko, me ngā rauemi.

Ngā Pātai Auau

Q1: He aha te painga o te whakamahi i te pereki hapaira tapawhā i runga i te pereki porowhita?
A: Mā ngā tapawhā papatahi ka nui te wāhi e taea ai te tapahi ritenga, te hanga taputapu, te whakamātautau mīhini rānei, ka whakaiti i te para rauemi me te utu.

P2: Ka taea e ngā papa hapaira te tu atu i ngā taiao tukatuka haurua-ira?
Āe, ka mau tonu te pumau o ngā papa hapaira i raro i ngā pāmahana tiketike, te whakairo plasma, me ngā maimoatanga matū e kitea whānuitia ana i roto i te hanga semiconductor.

P3: He mea nui te aronga o te mata mō taku tono?
A: Ae. He whānuitia te whakamahinga o te hapaira C-plane mō te epitaxy GaN i roto i te hanga LED, engari ko ngā aronga A-plane me R-plane e pai ake ana mō ngā tono whatu, piezoelectric rānei.

Q4: Kei te wātea ēnei papa kore me ngā paninga ritenga?
Āe, ka taea te whakamahi i ngā paninga ārai-whakaata, paninga ārai-hiko, paninga arataki rānei hei whakatutuki i ngā whakaritenga whatu, hiko rānei.

Mō Mātou

He tohunga a XKH ki te whakawhanake hangarau teitei, te whakaputa, me te hoko i ngā karāhe whatu motuhake me ngā rauemi tioata hou. E mahi ana ā mātou hua ki ngā hiko whatu, ki ngā hiko kaihoko, me te ope taua. E tuku ana mātou i ngā wāhanga whatu Sapphire, ngā taupoki arotahi waea pūkoro, ngā uku, LT, Silicon Carbide SIC, Quartz, me ngā anga karaihe haurua-ira. Me te tohungatanga pūkenga me ngā taputapu hou, e tino matatau ana mātou ki te tukatuka hua kore-paerewa, me te whai kia noho hei hinonga hangarau teitei rauemi optoelectronic matua.