Me ka wikiwiki o ka hoʻomohala ʻana o ka ʻenehana hoʻonui ʻia (AR), ke neʻe mālie nei nā aniani akamai, ma ke ʻano he mea lawe koʻikoʻi o ka ʻenehana AR, mai ka manaʻo i ka ʻoiaʻiʻo. Eia nō naʻe, ke kū nei ka hoʻohana nui ʻana i nā aniani akamai i nā pilikia loea he nui, ʻoiai ma ke ʻano o ka ʻenehana hōʻike, ke kaumaha, ka hoʻoheheʻe ʻana o ka wela, a me ka hana optical. I nā makahiki i hala iho nei, ua hoʻohana nui ʻia ka silicon carbide (SiC), ma ke ʻano he mea e kū mai ana, i nā mea hana semiconductor mana like ʻole a me nā modula. Ke hana nei ia i kona ala i loko o ke kahua aniani AR ma ke ʻano he mea nui. ʻO ke kiʻekiʻe o ka refractive index o Silicon carbide, nā waiwai hoʻoheheʻe wela maikaʻi loa, a me ka paʻakikī kiʻekiʻe, ma waena o nā hiʻohiʻona ʻē aʻe, e hōʻike ana i ka hiki ke hoʻohana ʻia i ka ʻenehana hōʻike, ka hoʻolālā māmā, a me ka hoʻoheheʻe ʻana o ka wela o nā aniani AR. Hiki iā mākou ke hāʻawi.Wafer SiC, kahi mea e hoʻokani nei i kahi kuleana koʻikoʻi i ka hoʻomaikaʻi ʻana i kēia mau wahi. Ma lalo nei, e ʻimi mākou pehea e hiki ai i ka silicon carbide ke lawe mai i nā loli kipi i nā aniani akamai mai nā ʻano o kona mau waiwai, nā holomua ʻenehana, nā noi mākeke, a me nā manaʻolana e hiki mai ana.
Nā Waiwai a me nā Pōmaikaʻi o Silicon Carbide
He mea semiconductor bandgap ākea ka Silicon carbide me nā waiwai maikaʻi loa e like me ka paʻakikī kiʻekiʻe, ka conductivity thermal kiʻekiʻe, a me kahi index refractive kiʻekiʻe. Hāʻawi kēia mau ʻano iā ia i ka hiki ke hoʻohana ʻia i nā mea uila, nā mea optical, a me ka hoʻokele thermal. Ma ke kahua o nā aniani akamai, ʻike nui ʻia nā pono o ka silicon carbide ma nā ʻano aʻe:
ʻImi Kuhikuhi Kiʻekiʻe: ʻOi aku ka nui o ka ʻimi kuhikuhi o ka Silicon carbide ma mua o 2.6, ʻoi aku ka kiʻekiʻe ma mua o nā mea kuʻuna e like me ka resin (1.51-1.74) a me ke aniani (1.5-1.9). ʻO ke ʻano o ka ʻimi kuhikuhi kiʻekiʻe e hiki i ka silicon carbide ke kāohi maikaʻi i ka hoʻolaha ʻana o ka mālamalama, e hōʻemi ana i ka nalowale o ka ikehu mālamalama, a laila e hoʻomaikaʻi ai i ka ʻōlinolino o ka hōʻike a me ke kahua o ka ʻike (FOV). No ka laʻana, hoʻohana nā aniani Orion AR o Meta i ka ʻenehana waveguide silicon carbide, e hoʻokō ana i kahi kahua o ka ʻike 70-degere, ʻoi aku ka nui ma mua o ke kahua o ka ʻike 40-degere o nā mea aniani kuʻuna.
Hoʻolaha Wela Maikaʻi Loa: He mau haneli manawa ka conductivity thermal o ka Silicon carbide ma mua o ke aniani maʻamau, e hiki ai ke hoʻoili wela wikiwiki. ʻO ka hoʻolaha wela kahi pilikia koʻikoʻi no nā aniani AR, ʻoiai i ka wā o nā hōʻike ʻālohilohi kiʻekiʻe a me ka hoʻohana lōʻihi. Hiki i nā aniani Silicon carbide ke hoʻoili koke i ka wela i hana ʻia e nā ʻāpana optical, e hoʻonui ana i ke kūpaʻa a me ke ola o ka hāmeʻa. Hiki iā mākou ke hāʻawi i ka wafer SiC e hōʻoiaʻiʻo ana i ka hoʻokele thermal maikaʻi i ia mau noi.
Paʻakikī Kiʻekiʻe a me ke Kūʻē ʻana i ka ʻAʻahu: ʻO Silicon carbide kekahi o nā mea paʻakikī loa i ʻike ʻia, ʻo ka lua wale nō ma hope o ke daimana. ʻOi aku ka paʻa o nā aniani silicon carbide i ke ʻano o ka ʻaʻahu ʻana, kūpono no ka hoʻohana ʻana i kēlā me kēia lā. I ka hoʻohālikelike ʻana, ʻoi aku ka maʻalahi o nā mea aniani a me nā resin i nā ʻōpala, kahi e hoʻopilikia ai i ka ʻike o ka mea hoʻohana.
Hopena Anti-Rainbow: ʻO nā mea aniani kuʻuna i loko o nā aniani AR e hana pinepine i kahi hopena ānuenue, kahi e hōʻike ai ke kukui ambient mai ka ʻili waveguide, e hana ana i nā hiʻohiʻona kukui kala ikaika. Hiki i ka Silicon carbide ke hoʻopau pono i kēia pilikia ma ka hoʻomaikaʻi ʻana i ke ʻano grating, no laila e hoʻomaikaʻi ana i ka maikaʻi o ka hōʻike a me ka hoʻopau ʻana i ka hopena ānuenue i hoʻokumu ʻia e nā ʻōuli o ke kukui ambient ma ka ʻili waveguide.
Nā holomua ʻenehana o Silicon Carbide i nā aniani AR
I nā makahiki i hala iho nei, ua kālele nui ʻia nā holomua ʻenehana o ka silicon carbide i loko o nā aniani AR i ka hoʻomohala ʻana i nā aniani waveguide diffraction. ʻO ka diffraction waveguide kahi ʻenehana hōʻike e hoʻohui i ka hanana diffraction o ka mālamalama me nā ʻano waveguide e hoʻolaha i nā kiʻi i hana ʻia e nā ʻāpana optical ma o ka grating i loko o ka lens. Hoʻemi kēia i ka mānoanoa o ka lens, e hoʻokokoke aku ai i nā aniani AR i nā aniani maka maʻamau.
I ʻOkakopa 2024, ua hoʻolauna ʻo Meta (ʻo Facebook ma mua) i ka hoʻohana ʻana i nā waveguides silicon carbide-etched i hui pū ʻia me nā microLED i loko o kāna mau aniani Orion AR, e hoʻoponopono ana i nā bottlenecks koʻikoʻi ma nā kahua e like me ke kahua o ka ʻike, ke kaumaha, a me nā mea hana optical. Ua ʻōlelo ʻo Pascual Rivera, ka ʻepekema optical o Meta, ua hoʻololi loa ka ʻenehana waveguide silicon carbide i ka maikaʻi o ka hōʻike ʻana o nā aniani AR, e hoʻololi ana i ka ʻike mai nā "kiko kukui ānuenue e like me ka disco-ball" i kahi "ʻike mālie e like me ka hale ʻaha mele."
I Dekemaba 2024, ua hoʻomohala maikaʻi ʻo XINKEHUI i ka substrate kristal hoʻokahi semi-insulating semi-insulating 12-'īniha mua loa o ka honua, e hōʻailona ana i kahi holomua nui ma ke kahua o nā substrates nui. E hoʻolalelale kēia ʻenehana i ka hoʻohana ʻana o ka silicon carbide i nā hihia hoʻohana hou e like me nā aniani AR a me nā poho wela. No ka laʻana, hiki i kahi wafer silicon carbide 12-'īniha ke hana i 8-9 mau pālua o nā aniani AR, e hoʻomaikaʻi nui ana i ka pono hana. Hiki iā mākou ke hāʻawi i ka wafer SiC e kākoʻo i ia mau noi ma ka ʻoihana aniani AR.
I kēia mau lā iho nei, ua hui pū ʻo XINKEHUI, ka mea hoʻolako substrate silicon carbide, me ka hui hāmeʻa micro-nano optoelectronic ʻo MOD MICRO-NANO e hoʻokumu i kahi hui like e kālele ana i ka hoʻomohala ʻana a me ka hoʻolaha mākeke o ka ʻenehana lens diffraction waveguide AR. ʻO XINKEHUI, me kona ʻike loea i nā substrates silicon carbide, e hāʻawi i nā substrates kiʻekiʻe no MOD MICRO-NANO, ka mea e hoʻohana i kona mau pono i ka ʻenehana optical micro-nano a me ka hana ʻana i ka waveguide AR e hoʻomaikaʻi hou aku i ka hana o nā diffraction waveguide. Manaʻo ʻia kēia hana like e hoʻolalelale i nā holomua ʻenehana i nā aniani AR, e paipai ana i ka neʻe ʻana o ka ʻoihana i ka hana kiʻekiʻe a me nā hoʻolālā māmā.
Ma ka hōʻikeʻike SPIE AR|VR|MR 2025, ua hōʻike ʻo MOD MICRO-NANO i kāna mau aniani maka aniani silicon carbide AR o ka lua o ka hanauna, he 2.7 grams wale nō ke kaumaha a he 0.55 millimeters wale nō ka mānoanoa, ʻoi aku ka māmā ma mua o nā aniani maka maʻamau, e hāʻawi ana i nā mea hoʻohana i kahi ʻike komo ʻana i aneane ʻike ʻole ʻia, e hoʻokō ana i kahi hoʻolālā "māmā" maoli.
Nā Hihia Hoʻohana o Silicon Carbide i nā Aniani AR
I ke kaʻina hana hana o nā alakaʻi nalu silicon carbide, ua lanakila ka hui o Meta i nā pilikia o ka ʻenehana kālai ʻana slanted. Ua wehewehe ka luna noiʻi ʻo Nihar Mohanty he ʻenehana grating kuʻuna ʻole ka slanted etching e kālai ana i nā laina ma kahi kihi inclined e hoʻomaikaʻi i ka hoʻopili ʻana o ka mālamalama a me ka decoupling efficiency. Ua hoʻokumu kēia holomua i ke kumu no ka hoʻohana nui ʻana o ka silicon carbide i nā aniani AR.
ʻO nā aniani Orion AR a Meta he hoʻohana koʻikoʻi ia o ka ʻenehana silicon carbide ma AR. Ma ka hoʻohana ʻana i ka ʻenehana waveguide silicon carbide, hoʻokō ʻo Orion i kahi kahua ʻike 70-degere a hoʻoponopono pono i nā pilikia e like me ka ghosting a me ka hopena ānuenue.
Ua ʻōlelo ʻo Giuseppe Carafiore, ke alakaʻi ʻenehana AR waveguide o Meta, ʻo ka index refractive kiʻekiʻe o ka silicon carbide a me ka conductivity thermal e lilo ia i mea kūpono no nā aniani AR. Ma hope o ke koho ʻana i ka mea, ʻo ka pilikia aʻe ka hoʻomohala ʻana i ka waveguide, ʻo ia hoʻi ke kaʻina hana etching slanted no ka grating. Ua wehewehe ʻo Carafiore ʻo ka grating, nona ke kuleana no ka hoʻopili ʻana i ka mālamalama i loko a i waho o ka lens, pono e hoʻohana i ka etching slanted. ʻAʻole hoʻonohonoho ʻia nā laina etched i luna akā ua hoʻolaha ʻia ma kahi kihi inclined. Ua hoʻohui ʻo Nihar Mohanty ʻo lākou ka hui mua ma ka honua holoʻokoʻa e hoʻokō i ka etching slanted pololei ma nā hāmeʻa. I ka makahiki 2019, ua kūkulu ʻo Nihar Mohanty a me kāna hui i kahi laina hana i hoʻolaʻa ʻia. Ma mua o kēlā, ʻaʻohe lako i loaʻa e etching i nā waveguides silicon carbide, ʻaʻole hoʻi i hiki ke hana ʻia ka ʻenehana ma waho o ka lab.
Nā Pilikia a me nā Manaʻolana e hiki mai ana o Silicon Carbide
ʻOiai ke hōʻike nei ka silicon carbide i ka hiki ke nui i nā aniani AR, ke kū nei kāna noi i kekahi mau pilikia. I kēia manawa, he pipiʻi ka mea silicon carbide ma muli o kona lohi o ka ulu ʻana a me ka paʻakikī o ka hana ʻana. No ka laʻana, ʻo ke kumukūʻai o kahi aniani silicon carbide hoʻokahi no nā aniani Orion AR o Meta he $1,000, e paʻakikī ai ke hoʻokō i nā pono o ka mākeke mea kūʻai. Eia naʻe, me ka wikiwiki o ka hoʻomohala ʻana o ka ʻoihana kaʻa uila, ke emi mālie nei ke kumukūʻai o ka silicon carbide. Eia kekahi, ʻo ka hoʻomohala ʻana o nā substrates nui (e like me nā wafers 12-'īniha) e hoʻoikaika hou aku i ka hōʻemi ʻana o ke kumukūʻai a me ka hoʻomaikaʻi ʻana i ka pono.
ʻO ke kiʻekiʻe o ka paʻakikī o ka silicon carbide e hoʻolilo iā ia i mea paʻakikī ke hana, ʻoiai hoʻi i ka hana ʻana o ka micro-nano structure, e alakaʻi ana i nā helu hua haʻahaʻa. I ka wā e hiki mai ana, me ka laulima hohonu ma waena o nā mea hoʻolako substrate silicon carbide a me nā mea hana optical micro-nano, manaʻo ʻia e hoʻoponopono ʻia kēia pilikia. ʻO ka hoʻohana ʻana o Silicon carbide i nā aniani AR aia nō i kona mau pae mua, e koi ana i nā ʻoihana hou aku e hoʻopukapuka kālā i ka noiʻi silicon carbide optical-grade a me ka hoʻomohala ʻana i nā lako. Manaʻo ka hui o Meta e hoʻomaka nā mea hana ʻē aʻe e hoʻomohala i kā lākou lako ponoʻī, ʻoiai ʻo ka nui o nā ʻoihana e hoʻopukapuka kālā i ka noiʻi silicon carbide optical-grade a me nā lako, ʻoi aku ka ikaika o ka ʻōnaehana ʻoihana aniani AR consumer-grade.
Hopena
ʻO ke silicon carbide, me kona helu kuhikuhi refractive kiʻekiʻe, ka hoʻolaha wela maikaʻi loa, a me ka paʻakikī kiʻekiʻe, ke lilo nei i mea nui i ke kahua o nā aniani AR. Mai ka hui pū ʻana ma waena o XINKEHUI lāua ʻo MOD MICRO-NANO a hiki i ka hoʻohana pono ʻana o ka silicon carbide i nā aniani Orion AR a Meta, ua hōʻike piha ʻia ka hiki o ka silicon carbide i nā aniani akamai. ʻOiai nā pilikia e like me ke kumukūʻai a me nā pilikia loea, i ka wā e oʻo ai ke kaulahao ʻoihana a ke hoʻomau nei ka ʻenehana i ka holomua, manaʻo ʻia e ʻālohilohi ka silicon carbide i ke kahua aniani AR, e hoʻokele ana i nā aniani akamai i ka hana kiʻekiʻe, ke kaumaha māmā, a me ka hoʻohana ākea. I ka wā e hiki mai ana, hiki i ka silicon carbide ke lilo i mea nui i ka ʻoihana AR, e hoʻolauna ana i kahi au hou o nā aniani akamai.
ʻAʻole i kaupalena ʻia ka hiki o ka silicon carbide i nā aniani AR; hōʻike pū kāna mau noi ʻoihana like ʻole i nā mea uila a me nā photonics i nā manaʻolana nui. No ka laʻana, ke noiʻi nui ʻia nei ka hoʻohana ʻana o ka silicon carbide i ka helu quantum a me nā mea uila mana kiʻekiʻe. I ka holomua ʻana o ka ʻenehana a me ka emi ʻana o nā kumukūʻai, manaʻo ʻia ka silicon carbide e pāʻani i kahi kuleana koʻikoʻi ma nā kahua hou aʻe, e wikiwiki ana i ka hoʻomohala ʻana o nā ʻoihana pili. Hiki iā mākou ke hāʻawi i ka SiC wafer no nā noi like ʻole, e kākoʻo ana i nā holomua ma ka ʻenehana AR a ma waho aku.
Huahana pili
Papa noiʻi dummy alakaʻi 8Inch 200mm 4H-N SiC Wafer
Ka manawa hoʻouna: ʻApelila-01-2025