2inihi 3inihi 4inihi InP epitaxial wafer substrate APD light detector for fiber optic transmissions, LiDAR rānei

Whakaahuatanga Poto:

Ko te papa epitaxial InP te rauemi turanga mō te hanga APD, he rauemi semiconductor i whakatakotoria ki runga i te papa mā te hangarau tipu epitaxial. Ko ngā rauemi e whakamahia whānuitia ana ko te silicon (Si), te gallium arsenide (GaAs), te gallium nitride (GaN), me ētahi atu, he tino pai ngā āhuatanga photoelectric. Ko te photodetector APD he momo photodetector motuhake e whakamahi ana i te pānga photoelectric avalanche hei whakarei ake i te tohu kite. Ina tau ngā photon ki runga i te APD, ka puta he takirua irahiko-pōha. Ko te whakateretere o ēnei kaikawe i raro i te mahi a te mara hiko ka arahi pea ki te hanganga o ētahi atu kaikawe, he "pānga avalanche", e whakanui nui ana i te ia putanga.
Ko ngā paparanga epitaxial i whakatipuria e te MOCvD te kaupapa matua o ngā tono diode whakaahua-ā-horonga. I whakaritea te paparanga mimiti mā te rauemi U-InGaAs me te tāpiri papamuri <5E14. Ka taea e te paparanga mahi te whakamahi i te InP, i te InAlAslayer rānei. Ko te paparanga epitaxial InP te rauemi taketake mō te hanga APD, e whakatau ana i te mahi a te pūoko whatu. Ko te pūoko whakaahua-ā-APD he momo pūoko whakaahua-tairongo teitei, e whakamahia whānuitia ana i roto i ngā mara whakawhitiwhiti kōrero, i ngā mara pūoko me te whakaahua.

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Ngā Āhuatanga

Ko ngā āhuatanga matua o te pepa epitaxial taiaho InP ko:

1. Ngā āhuatanga o te āputa roopu: He whaiti te āputa roopu o InP, he mea e tika ana mō te kimi mārama pūwhero-roa, inā koa i te awhe roangaru o te 1.3μm ki te 1.5μm.
2. Mahi whatu: He pai te mahi whatu o te kiriata epitaxial InP, pērā i te mana kanapa me te whai huatanga matūriki o waho i ngā roangaru rerekē. Hei tauira, i te 480 nm, ko te mana kanapa me te whai huatanga matūriki o waho he 11.2% me te 98.8%, ia.
3. Ngā Ahumahi Kaikawe: Ka whakaatuhia e ngā matūriki nano InP (NP) he whanonga pirau taupū rua i te wā e tipu ana i te epitaxial. Ko te wā pirau tere e pā ana ki te werohanga kaikawe ki roto i te paparanga InGaAs, ko te wā pirau puhoi e pā ana ki te whakakotahitanga kaikawe i roto i ngā InP NP.
4. Ngā āhuatanga pāmahana teitei: He tino pai te mahi a te rauemi puna matū AlGaInAs/InP i te pāmahana teitei, ka taea ai te ārai i te turuturu o te awa me te whakapai ake i ngā āhuatanga pāmahana teitei o te taiaho.
5. Tukanga hanga: Ko ngā rau epitaxial InP ka whakatipuria ki runga i te papa mā te hangarau epitaxy hihi ngota (MBE) te hangarau whakapūtanga kohu matū whakarewa-ora (MOCVD) rānei hei whakatutuki i ngā kiriata kounga teitei.
Nā ēnei āhuatanga e whai hua ai ngā anga epitaxial taiaho InP ki te whakawhitiwhiti muka whatu, te tohatoha kī matū me te kimi whatu mamao.

Ko ngā whakamahinga matua o ngā papa epitaxial taiaho InP ko

1. Ngā Pūoko Whakaahua: E whakamahia whānuitia ana ngā taiaho me ngā pūoko InP i roto i ngā whakawhitiwhitinga whatu, ngā pokapū raraunga, te whakaahua pūwhero, te koiora, te pūoko 3D me te LiDAR.

2. Whakawhitiwhiti Kōrero: He mea nui ngā whakamahinga o ngā rauemi InP i roto i te whakaurunga tauine nui o ngā taiaho roa-ngaru roa e hangai ana ki te silicon, inā koa i roto i ngā whakawhitiwhiti kōrero muka whatu.

3. Ngā taiaho pūwero: Ngā whakamahinga o ngā taiaho puna irahiko e hangai ana ki te InP i roto i te roopu waenga-pūwero (pēnei i te 4-38 maikorona), tae atu ki te pūoko hau, te kimi pahūtanga me te whakaahua pūwero.

4. Te hangarau hikohiko ā-hikohiko: Mā te hangarau whakauru kanorau, ka whakawhitia te taiaho InP ki tētahi papa hangai-hikohiko hei hanga i tētahi tūāpapa whakauru hikohiko ā-hikohiko maha-mahi.

5. Ngā taiaho mahi-teitei: Ka whakamahia ngā rauemi InP hei hanga taiaho mahi-teitei, pērā i ngā taiaho transistor InGaAsP-InP me te roanga ngaru o te 1.5 maikorona.

Kei a XKH ngā anga epitaxial InP kua whakaritea mō ngā hanganga me ngā matotoru rerekē, e kapi ana i ngā momo mahi pēnei i ngā whakawhitiwhitinga whatu, ngā pūoko, ngā teihana turanga 4G/5G, me ētahi atu. Ka hangaia ngā hua a XKH mā te whakamahi i ngā taputapu MOCVD matatau hei whakarite i te mahi teitei me te pono. Mō ngā mahi kawe, he whānuitia ngā hongere pūtake o te ao a XKH, ka taea te whakahaere ngāwari i te maha o ngā ota, me te whakarato ratonga uara tāpiri pēnei i te whakaitiiti, te wehewehe, me ētahi atu. Mā ngā tukanga tuku whai hua ka taea te tuku i te wā tika, ā, ka tutuki hoki ngā hiahia o te kiritaki mō te kounga me ngā wā tuku. I muri i te taenga mai, ka taea e ngā kiritaki te whiwhi tautoko hangarau whānui me te ratonga muri-hoko hei whakarite kia pai te whakamahi i te hua.