Ho Notlolla Phetohelo ea Semiconductor Silicon: Matla a Chaena ho High-Purity 6N Crystal Boron Dopants
Sehlohlolong sa tlhahiso e nepahetseng, ts'ebetso e 'ngoe le e 'ngoe e phahameng ea silicon ea semiconductor e qala ka taolo e nepahetseng boemong ba athomo. Senotlolo sa ho fihlella taolo ena se lutse ho li-dopants tsa boron tse kristale tse hloekileng haholo. Jwalo ka thepa ea motheo ea bohlokoa bakeng sa indasteri ea lisebelisoa tsa elektroniki ea sejoale-joale, boron e kristale ea 6N (bohloeki ≥99.9999%), ka thepa ea eona e ke keng ea nkeloa sebaka, e fetohile "moqapi ea sa bonahaleng" ea bopang li-chip tsa sejoale-joale le lisebelisoa tsa motlakase.
Hobaneng ha 6N e le kristaleboron"Mohala oa bophelo" oa silicon ea semiconductor?
"Switch" ea mofuta oa P e nepahetseng: Ha liathomo tsa boron tsa 6N li kenngoa ka nepo ka har'a lattice ea silicon ea semiconductor, li theha "likoti" tsa bohlokoa tse fang wafer ea silicon conductivity ea eona ea mofuta oa P. Ena ke motheo oa ho haha li-diode, li-transistors tsa phello ea tšimo (li-FET), esita le lipotoloho tse kopaneng tse rarahaneng.
Sekhutlo sa tshebetso: Bokgoni, botsitso le lebelo la ho chencha ha disebediswa tsa semiconductor di itshetlehile haholo hodima ho tshwana le bohlweki ba doping. Ditshila dife kapa dife tse setseng (tse kang khabone, oksijene le dielemente tsa tshepe) di ka sebetsa e le maraba a ho jara, a lebisang keketsehong ya ho dutla ha motlakase le ho hloleha ha sesebediswa. 6N boron crystalline e laola maemo a ho se hlweke ho ya boemong ba dikarolo ka dimilione tse dikete (ppb), e netefatsa bohlweki bo phethahetseng le botshepehi ba tshebetso ya motlakase ya semiconductor silicon.
Mohlokomedi wa ditshebetso tsa mocheso o phahameng: Ka ntlha ya ho qhibiliha e fetang 2300°C, kristale boron e na le botsitso bo ikhethang ba mocheso. Nakong ya ditshebetso tse hlokang tlhokomelo e kgolo jwalo ka kgolo ya kristale e le nngwe ya silicon (mokgwa wa Czochralski) kapa ho hasana ha mocheso o phahameng/ho kenngwa ha ion, kristale boron ya 6N e boloka botsitso ba sebopeho ntle le ho hlahisa di-volatile tse sa lebellwang kapa dihlahiswa tsa ho bola, ho netefatsa hore tshebetso e a laoleha le ho phetwa hape.
E pakiloe lits'ebetsong tse tsoetseng pele tsa lefats'e: Khetho e tšepahalang bakeng sa bareki ba Korea le Japane
Nyeoe ea 1 (moetsi oa li-wafer tsa silicon tsa semiconductor tsa Korea Boroa): Phofo ea boron ea UrbanMines ea 6N (bohloeki ba 99.9999%, boholo ba likaroloana tsa 2-3mm) e sebelisitsoe e le sesebelisoa sa bohlokoa ka har'a ontong ea kristale e le 'ngoe ea Czochralski ho holisa li-ingots tsa silicon tsa semiconductor tsa mofuta oa P tsa boleng bo holimo tse nang le mefuta e itseng ea resistivity bakeng sa tlhahiso ea li-chip tse tsoetseng pele tsa logic.
Nyeoe ea 2 (Moetsi oa sesebelisoa sa silicon epitaxial/sesebelisoa sa Japane): UrbanMines e khethiloe ho reka 6N pure boron dopant (bohloeki ba 99.9999%, boholo ba likaroloana -4+40 letlooeng). Dopant ena e sebelisoa lits'ebetsong tsa kholo ea epitaxial kapa tsa ho hasana ha mocheso o phahameng ho laola kabo ea mahloriso a boron ka nepo sebakeng sa semiconductor silicon epitaxial lera kapa sebaka sa junction, ho fihlela litlhoko tse thata tsa lisebelisoa tsa motlakase o phahameng (joalo ka li-IGBT).
Phepelo ea Chaena: Melemo ea Leano la 6N Crystalline Boron
Ka lebaka la tlhoko e ntseng e hola ea maemo a holimo ho tsoa libakeng tsa mantlha tsa lefats'e tsa semiconductor tse kang Korea Boroa, Japane le United States, k'hamphani ea rona e thehile melemo e meholo ea tlhahiso le phepelo lefapheng la thepa ea boron e hloekileng haholo:
1. Lintlafatso tsa theknoloji le moruo oa tekanyo: Ka lipatlisiso tse tsoelang pele le nts'etsopele, k'hamphani ea rona e atlehile ho hlahisa boron e nang le bohloeki bo phahameng (e leng mofuta o tsitsitseng ka ho fetisisa). Sena se re lumella ho fana ka mefuta e felletseng ea maemo a bohloeki, ho tloha ho 99% ho isa ho 6N (99.9999%) le ho feta. Bokhoni ba rona ba tlhahiso bo tsitsitseng bo re lumella ho fihlela liodara tse kholo ho tsoa ho bareki ba kholo ba lefats'e (joalokaha ho bontšitsoe ke tlhoko ea rona ea khoeli le khoeli ea 50kg ea boron e sa fetoheng bakeng sa lits'ebetso tsa letsatsi).
2. Sistimi e tiileng ea taolo ea boleng: Re tšoailoe khahlanong le maemo a machaba a sehlopha sa semiconductor, re thehile sistimi ea taolo le taolo e hloekileng haholo bakeng sa ts'ebetso eohle, e akaretsang tlhahlobo ea thepa e tala, tlhahiso ea karabelo, tlhoekiso le ho hloekisoa (joalo ka ho qhibiliha le ho qhala ha vacuum sebakeng seo), ho sila le ho hlophisa, le ho paka. Sena se netefatsa hore sehlopha se seng le se seng sa likristale tsa boron tsa 6N se na le botsitso bo botle bo ka lateloang.
3. Bokgoni ba ho Iketsetsa ka Botebo: Khamphani ya rona e utlwisisa ka botebo ditlhoko tse nepahetseng tsa ditshebetso tsa semiconductor bakeng sa foromo ya boron (di-granule, diphofo) le boholo ba dikarolwana (mohlala, D50 ≤ 10μm, -200 letlooeng, 1-10mm, 2-4μm, jj.). Jwalo ka ha ho boletswe tokomaneng ena, "tlhahiso e ikgethileng le yona e a kgoneha haeba ditlhoko tse ikgethileng tsa boholo ba dikarolwana di fihlellwa." Karabelo ena e tenyetsehang ke senotlolo sa ho hapa bareki ba maemo a hodimo Korea Borwa, Japane le dinaheng tse ding.
4. Tšebelisano-'moho ea Ketane ea Liindasteri le Melemo ea Litšenyehelo: Ka ho sebelisa sistimi e felletseng ea indasteri ea lehae le mehloli ea thepa e tala, boron ea rona ea 6N e kristale ha e netefatse boleng bo holimo feela empa hape e na le matla a holimo a ho mamella ketane ea phepelo le tlholisano e felletseng ea litšenyehelo, e fanang ka tšehetso e tsitsitseng, e tšepahalang le e theko e tlaase ea thepa ea bohlokoa bakeng sa indasteri ea tlhahiso ea semiconductor ea lefats'e.
Qetello: Lisebelisoa tsa boron tsa Chaena li etella pele ho matlafatseng li-chip tsa nakong e tlang
Ho tloha ho li-processor tsa mantlha tsa li-smartphone ho isa ho li-chip tsa matla tse matlafatsang "boko" ba likoloi tse ncha tsa matla, meeli ea ts'ebetso ea silicon ea semiconductor e ntse e hlalosoa ke bohloeki le ho nepahala ha li-dopants tsa boron tsa kristale tsa 6N. Indasteri ea boron e hloekileng haholo ea Chaena, ka boiphihlelo ba eona bo tiileng ba theknoloji, taolo e tiileng ea boleng, bokhoni bo feto-fetohang ba ho iketsetsa, le bokhoni bo matla ba tlhahiso, e fetoha mokhanni oa bohlokoa oa boqapi ba semiconductor lefatšeng ka bophara.
Ho khetha mofani oa kristale ea boron ea China ea 6N e tšepahalang ho bolela ho khetha tsela e hlakileng e lebisang bokamosong ba silicon ea semiconductor. Re ikakhetse ka setotsoana tšimong ea boron e hloekileng haholo, re na le bokhoni ba tlhahiso le litharollo tse ikhethileng ho fihlela lits'ebetso tsa semiconductor tse batloang haholo. Ikopanye le rona kajeno ho kenya matla a boron a China a matla le a nepahetseng lisebelisoa tsa hau tsa silicon tsa semiconductor tse tsoetseng pele!