He mea nui ngā wāhanga karapiti parakore-teitei ki tengā tukanga i roto i te umanga haurua-ira, LED me te rā. Kei roto i ā mātou tuku ko ngā mea e pau ana i te karāpeti mō ngā rohe wera e tipu ana i te karaihe (ngā whakamahana, ngā kaiwhakaū ipu, te whakamahana), ki ngā wāhanga karāpeti tino tika mō ngā taputapu tukatuka wafer, pērā i ngā kaiwhakaū karāpeti kua pania ki te silicon carbide mō Epitaxy, MOCVD rānei. Koinei te wāhi e whai wāhi mai ai tā mātou karāpeti motuhake: he mea nui te karāpeti isostatic mō te hanga paparanga haurua-ira whakakotahi. Ka hangaia ēnei i roto i te "rohe wera" i raro i ngā pāmahana tino nui i te wā e kiia nei ko te epitaxy, ko te tukanga MOCVD rānei. Ko te kawe hurihuri e pania ana ngā wafer i roto i te tauhohenga, he karāpeti isostatic kua pania ki te silicon carbide. Ko tēnei karāpeti tino parakore, ōrite anake e tutuki ana i ngā whakaritenga teitei i roto i te tukanga paninga.
TKo te kaupapa matua o te tipu epitaxial wafer LED koI runga i te papa (te nuinga he hapaira, SiC me Si) kua werahia ki te pāmahana e tika ana, ka haria te rauemi hau InGaAlP ki te mata o te papa i roto i te huarahi whakahaere kia tupu ai he kiriata tioata kotahi. I tēnei wā, ko te hangarau tipu o te papa epitaxial LED e whakamahi ana i te nuinga o te wā i te kohu matū konganuku waro.
Rauemi papa epitaxial LEDKo te tūāpapa o te whanaketanga hangarau o te umanga rama haurua-ira. Me rerekē te hangarau tipu wafer epitaxial LED, te hangarau tukatuka maramara me te hangarau takai taputapu mō ngā rauemi papa rerekē. Ko ngā rauemi papa te mea e whakatau ana i te huarahi whanaketanga o te hangarau rama haurua-ira.
Ngā āhuatanga o te kōwhiringa rauemi paparanga paparanga epitaxial LED:
1. He rite, he rite rānei te hanganga karaihe o te rauemi epitaxial ki te papa, he iti te ōritenga pumau o te whatunga, he pai te tioata me te iti o te kiato hapa.
2. Ngā āhuatanga atanga pai, e whai hua ana ki te whakapūmautanga o ngā rauemi epitaxial me te piri kaha
3. He pai te pumau matū, ā, kāore e ngāwari te pirau me te waikura i te pāmahana me te āhuarangi o te tipu epitaxial
4. He pai te mahi wera, tae atu ki te kawe wera pai me te iti o te taupatupatu wera
5. He pai te kawe hiko, ka taea te hanga ki te hanganga o runga me raro 6, he pai te mahi whatu, ā, he iti ake te mimiti o te mārama e tukuna ana e te taputapu hanga e te papa.
7. He pai ngā āhuatanga miihini me te ngāwari o te tukatuka i ngā taputapu, tae atu ki te angiangi, te oro me te tapahi
8. Utu iti.
9. Rahi nui. Ko te whānui, kaua e iti iho i te 2 inihi.
10. He māmā noa te whiwhi i te āhua o te papa (ki te kore he whakaritenga motuhake), ā, ko te āhua o te papa e rite ana ki te kōhao paepae o ngā taputapu epitaxial he uaua ki te hanga i te au hurihuri koretake, kia pā ai ki te kounga o te epitaxial.
11. I runga i te whakaaro kia kaua e pā ki te kounga o te epitaxial, me tutuki i te kaha o te miihini o te papa ngā whakaritenga o te tukatuka maramara me te takai i muri mai i ngā mea e taea ana.
He tino uaua ki te whiriwhiri i te papa oneone kia tutuki i ngā āhuatanga tekau mā tahi i runga ake nei i te wā kotahi.Nō reira, i tēnei wā, ka taea anake e tātou te urutau ki te R&D me te hanga o ngā taputapu whakaputa mārama semiconductor i runga i ngā papa rerekē mā te whakarerekētanga o te hangarau tipu epitaxial me te whakatikatika i te hangarau tukatuka taputapu. He maha ngā rauemi papa mō te rangahau gallium nitride, engari e rua noa iho ngā papa ka taea te whakamahi mō te hanga, arā, ko te hapaira Al2O3 me te silicon carbide.Ngā papa SiC.
Te wā tuku: 28-Pepuere-2022