He aha ke kukui LED? No laila he aha kona mau ʻano? ʻO ka hana ʻana o nā chips LED ka mea nui i ka hana ʻana i nā electrodes contact ohmic haʻahaʻa kūpono a hilinaʻi, hiki ke hoʻokō i ka hāʻule liʻiliʻi liʻiliʻi ma waena o nā mea pili a hāʻawi i nā pad solder, ʻoiai e hoʻokuʻu ana i ka māmā e like me ka hiki. Hoʻohana maʻamau ke kaʻina hana hoʻoili kiʻiʻoniʻoni i ke ʻano o ka hoʻoheheʻe ʻia ʻana. Ma lalo o 4Pa kiʻekiʻe vacuum, hoʻoheheʻe ʻia ka mea e ka hoʻomehana kūʻē a i ʻole ka electron beam bombardment ʻano hoʻomehana, a hoʻololi ʻia ʻo BZX79C18 i ka mahu metala a waiho ʻia ma ka ʻili o ka mea semiconductor ma lalo o ke kaomi haʻahaʻa.
ʻO nā metala pili P-type maʻamau i hoʻohana ʻia me nā ʻāpana e like me AuBe a me AuZn, aʻo ka ʻaoʻao N ʻaoʻao i hana pinepine ʻia me ka huila AuGeNi. ʻO ka papa hoʻoheheʻe i hana ʻia ma hope o ka uhi ʻia ʻana pono e hōʻike i ka wahi e hoʻomālamalama i ka mālamalama e like me ka hiki ma o ka ʻenehana photolithography, i hiki ai i ke koena o ke koena ke hoʻokō i nā koi o nā electrodes hoʻopili haʻahaʻa haʻahaʻa haʻahaʻa ohmic a me nā pad uea solder. Ma hope o ka pau ʻana o ke kaʻina hana photolithography, e hana ʻia kahi kaʻina hana alloying, ma lalo o ka pale o H2 a i ʻole N2. Hoʻoholo pinepine ʻia ka manawa a me ka mahana o ka alloying e nā mea e like me nā ʻano o nā mea semiconductor a me ke ʻano o ka umu ahi. ʻOiaʻiʻo, inā ʻoi aku ka paʻakikī o ke kaʻina electrode no nā pōpoki uliuli-'ōmaʻomaʻo, pono e hoʻohui ʻia ka ulu ʻana o ka kiʻiʻoniʻoni passivation a me nā kaʻina etching plasma.

I ka manufacturing kaʻina o LED chips, i kaʻina hana i koʻikoʻi ka hopena i ko lakou optoelectronic hana?
ʻO ka ʻōlelo maʻamau, ma hope o ka pau ʻana o ka hana epitaxial LED, ua hoʻopau ʻia kāna mau waiwai uila nui, a ʻaʻole hoʻololi ka hana chip i kona ʻano kumu. Eia nō naʻe, ʻo nā kūlana kūpono ʻole i ka wā o ka uhi ʻana a me nā kaʻina hana alloying hiki ke hana i kekahi mau ʻāpana uila maikaʻi ʻole. No ka laʻana, hiki i nā wela haʻahaʻa haʻahaʻa a kiʻekiʻe paha ke hoʻopili i ka ohmic maikaʻi ʻole, ʻo ia ke kumu nui o ka hāʻule ʻana o ka volta mua kiʻekiʻe VF i ka hana ʻana i ka chip. Ma hope o ka ʻoki ʻana, hiki ke kōkua i ka hana ʻana i kekahi mau kaʻina hana corrosion ma nā kihi o ka chip i ka hoʻomaikaʻi ʻana i ka leaka hope o ka chip. No ka mea, ma hope o ka ʻoki ʻana me ka maka huila wili daimana, nui ka pauda ʻōpala i koe ma ka lihi o ka chip. Inā pili kēia mau ʻāpana i ka hui PN o ka puʻupuʻu LED, e hana lākou i ka leaka uila a me ka haki. Eia kekahi, inā ʻaʻole ʻili maʻemaʻe ka photoresist ma ka ʻili o ka chip, e hoʻopilikia ʻia a me ka soldering virtual o nā laina solder mua. Inā aia ma ke kua, e hoʻohaʻahaʻa pū kekahi i ke kaomi kiʻekiʻe. I ka wā o ke kaʻina hana chip, hiki ke hoʻonui i nā ʻano e like me ke ʻano o ka ʻili a me ka ʻoki ʻana i nā hale trapezoidal inverted.

No ke aha i hoʻokaʻawale ʻia ai nā ʻāpana LED i nā nui like ʻole? He aha nā hopena o ka nui i ka hana photoelectric o LED?
Hiki ke hoʻokaʻawale ʻia ka nui o nā ʻāpana LED i nā ʻāpana haʻahaʻa haʻahaʻa, nā ʻāpana mana waena, a me nā pahu mana kiʻekiʻe e like me ko lākou mana. E like me nā koi o ka mea kūʻai aku, hiki ke hoʻokaʻawale ʻia i nā ʻāpana e like me ka pae pae hoʻokahi, pae kikohoʻe, pae dot matrix, a me nā kukui hoʻonaninani. No ka nui kiko'ī o ka chip, pili ia i ka pae hana maoli o nā mea hana chip like ʻole a ʻaʻohe koi kikoʻī. ʻOiai ka lōʻihi o ke kaʻina hana i ka maʻamau, hiki i nā pahu liʻiliʻi ke hoʻonui i ka huahana a hoʻemi i nā kumukūʻai, a ʻaʻole e hoʻololi ʻia ka hana optoelectronic. ʻO ke au i hoʻohana ʻia e kahi puʻupuʻu pili maoli i ka nui o kēia manawa e kahe ana ma loko. Hoʻohana liʻiliʻi ka puʻupuʻu liʻiliʻi i kēia manawa, ʻoiai ke hoʻohana nei ka chip nui i nā mea hou aku. ʻO kā lākou ʻāpana i kēia manawa like ke ʻano like. Ke noʻonoʻo nei ʻo ka hoʻopau ʻana i ka wela ka mea nui ma lalo o ke au kiʻekiʻe, ʻoi aku ka haʻahaʻa o kāna hana kukui ma mua o ka haʻahaʻa haʻahaʻa. Ma ka ʻaoʻao ʻē aʻe, i ka piʻi ʻana o ka ʻāpana, e emi ana ke kūpaʻa o ke kino o ka chip, e hopena i ka emi ʻana o ka volta conduction mua.

He aha ka ʻāpana maʻamau o nā ʻāpana mana kiʻekiʻe LED? No ke aha mai?
Hiki ke loa'a i ka mākeke ma kahi o 40mil ka nui o ka mana ki'eki'e, a 'o ka ho'ohana mana o ka mana ki'eki'e e pili ana i ka mana uila ma luna o 1W. Ma muli o ka emi ʻana o ka hana quantum ma mua o 20%, ua hoʻololi ʻia ka hapa nui o ka ikehu uila i ka ikehu wela, no laila he mea nui ka hoʻopau ʻana o ka wela o nā ʻāpana mana kiʻekiʻe a koi ʻia nā chips e loaʻa kahi wahi nui.

He aha nā koi ʻokoʻa no ke kaʻina hana chip a me nā lako hana no ka hana ʻana i nā mea epitaxial GaN i hoʻohālikelike ʻia me GaP, GaAs, a me InGaAlP? No ke aha mai?
ʻO nā pani o nā ʻāpana ʻulaʻula a me nā melemele LED maʻamau a me nā ʻāpana ʻulaʻula quaternary kiʻekiʻe a me nā ʻāpana melemele i hana ʻia me nā mea semiconductor compound e like me GaP a me GaAs, a hiki ke hana maʻamau i nā substrates N-type. Hoʻohana ʻia ka hana pulu no ka photolithography, a laila hoʻohana ʻia nā lau huila wili daimana e ʻoki i loko o nā ʻāpana. Hoʻohana ʻia ka pāpaʻi polū-ʻōmaʻomaʻo i hana ʻia me ka mea GaN i kahi substrate sapphire. Ma muli o ke ʻano insulating o ka substrate sapphire, ʻaʻole hiki ke hoʻohana ʻia e like me hoʻokahi electrode o ka LED. No laila, pono e hana ʻia nā electrodes ʻelua P / N ma ka ʻili epitaxial ma o ke kaʻina etching maloʻo, a pono e hoʻokō ʻia kekahi mau kaʻina passivation. Ma muli o ka paʻakikī o ka sapphire, he paʻakikī ke ʻokiʻoki i loko o nā ʻāpana me kahi pahi huila daimana. ʻOi aku ka paʻakikī a me ka paʻakikī o kāna kaʻina hana ma mua o nā LED i hana ʻia me nā mea GaP a i ʻole GaAs.

He aha ke ʻano a me nā ʻano o ka chip "transparent electrode"?
ʻO ka mea i kapa ʻia ʻo transparent electrode pono e conductive a maopopo. Hoʻohana nui ʻia kēia mea i nā kaʻina hana kristal wai, a ʻo kona inoa ʻo indium tin oxide, i hoʻopau ʻia ʻo ITO, akā ʻaʻole hiki ke hoʻohana ʻia ma ke ʻano he solder pad. I ka hana ʻana, e hana mua i kahi electrode ohmic ma ka ʻili o ka chip, a laila e uhi i ka ʻili me kahi papa o ITO a pā i kahi papa solder ma ka ʻili ITO. Ma kēia ʻano, ua māhele like ʻia ka mea e iho mai ana mai ke alakaʻi i kēlā me kēia ohmic contact electrode ma o ka papa ITO. I ka manawa like, ʻo ITO, ma muli o kāna ʻōlelo kuhikuhi refractive ma waena o ka ea a me nā mea epitaxial, hiki ke hoʻonui i ke kihi o ka hoʻokuʻu ʻana o ka māmā a me ka flux luminous.

He aha ka hoʻomohala nui o ka ʻenehana chip no ke kukui semiconductor?
Me ka hoʻomohala ʻana o ka ʻenehana semiconductor LED, hoʻonui ʻia kāna noi ma ke kahua o ke kukui, ʻoi aku ka nui o ka puka ʻana o ke kukui keʻokeʻo, ua lilo ia i kumuhana wela i nā kukui semiconductor. Eia nō naʻe, pono e hoʻomaikaʻi ʻia nā ʻenehana kīpē a me nā ʻenehana hoʻopili, a ma ke ʻano o nā chips, pono mākou e hoʻomohala i ka mana kiʻekiʻe, ka māmā māmā kiʻekiʻe, a me ka hōʻemi ʻana i ka pale wela. ʻO ka hoʻonui ʻana i ka mana, ʻo ia ka hoʻonui ʻana i ka manawa i hoʻohana ʻia e ka chip, a ʻo ke ala pololei ʻoi aku ka hoʻonui ʻana i ka nui chip. ʻO nā pahu mana kiʻekiʻe i hoʻohana mau ʻia ma kahi o 1mm × 1mm, me kahi manawa o 350mA. Ma muli o ka piʻi ʻana o ka hoʻohana ʻana i kēia manawa, ua lilo ka wela wela i pilikia koʻikoʻi, a i kēia manawa ua hoʻopau maoli ʻia kēia pilikia ma o ke ʻano o ka hoʻohuli ʻana i ka chip. Me ka hoʻomohala ʻana o ka ʻenehana LED, ʻo kāna noi i ke kula kukui e kū i nā manawa kūpono ʻole a me nā pilikia.

He aha ka "flip chip"? He aha kona hale? He aha kona mau pono?
Hoʻohana maʻamau ʻo LED Blue i ka substrate Al2O3, nona ka paʻakikī kiʻekiʻe, haʻahaʻa haʻahaʻa a me ka conductivity uila. Inā hoʻohana ʻia kahi hoʻolālā maikaʻi, e lawe mai ia i nā pilikia anti-static ma kekahi ʻaoʻao, a ma kekahi ʻaoʻao, e lilo ka wela wela i mea nui ma lalo o nā kūlana kiʻekiʻe. I kēia manawa, ma muli o ka electrode maikaʻi e kū ana i luna, e kāohi ʻia kahi ʻāpana o ke kukui, e hopena i ka emi ʻana o ka pono luminous. Hiki i nā LED polū mana kiʻekiʻe ke hoʻokō i ka hoʻopuka māmā ʻoi aku ka maikaʻi ma o ka ʻenehana inversion chip ma mua o ka ʻenehana hoʻopili kuʻuna.
ʻO ke kaʻina hana hoʻohuli nui i kēia manawa, ʻo ia ka hoʻomākaukau mua ʻana i nā kīʻaha LED polū nui me nā electrodes soldering eutectic kūpono, a ma ka manawa like e hoʻomākaukau i kahi substrate silika nui aʻe ma mua o ka chip LED polū, a laila hana i kahi papa conductive gula a alakaʻi i waho. papa (ultrasonic gold wire ball solder joint) no ka eutectic soldering ma luna. A laila, kūʻai ʻia ka chip LED polū kiʻekiʻe i ka substrate silika me ka hoʻohana ʻana i nā mea hoʻoheheʻe eutectic.
ʻO ke ʻano o kēia ʻano ʻo ia ka pili pono ʻana o ka papa epitaxial i ka substrate silicon, a ʻoi aku ka haʻahaʻa o ke kūpaʻa wela o ka substrate silicon ma mua o ka substrate sapphire, no laila ua hoʻoponopono maikaʻi ʻia ka pilikia o ka hoʻokuʻu ʻana i ka wela. Ma muli o ka hoʻohuli ʻana i ka substrate sapphire e kū pono ana i luna, lilo ia i ka ʻili uila, a ʻo ka sapphire ke aniani, no laila e hoʻoponopono ai i ka pilikia o ka hoʻokuʻu māmā. ʻO ka mea i luna nei ka ʻike pili o ka ʻenehana LED. Ke manaʻoʻiʻo nei mākou me ka hoʻomohala ʻana i ka ʻepekema a me ka ʻenehana, e ʻoi aku ka maikaʻi o nā kukui LED e hiki mai ana a e hoʻomaikaʻi maikaʻi ʻia ko lākou ola lawelawe, e lawe mai iā mākou i ka ʻoluʻolu.