Inyigo y'Urugero: Kongera umusaruro wa CZ Crystal Pulling na Lifetime ukoresheje High-Purity Graphite Crucibles

Umuyobozi w'Ubwubatsi:Dr. Marcus n'itsinda rya VET Crystal Thermal Field & High-Purity Materials Engineering Raporo ya tekiniki:Inyigo y'Inyigo ku Bikoresho bya VET Semiconductor & Process Optimization (Raporo No: VET-CS-2025-SAG04)

Incamake y'Ubuyobozi n'Incamake y'Umushinga Inganda:Gukora Wafer ya Semiconductor na Photovoltaic Umukiriya:S-AG (Uruganda rukora Wafer rwa Semiconductor rwa 300mm, mu Budage) Inzira:Czochralski (CZ) 12-Inch Monocrystalline Silicon Crystal Pulling Igisubizo:Imashini ya Graphite Isostatic Crucible ifite ubucucike bwinshi (Ivu < 5 ppm) + 5-Axis Precision CNC Machining + FEA Thermal Modeling Ibisubizo byapimwe:Umusaruro wo gukurura kristu wiyongereyeho 14.2%, igihe cyo gukora icyuma cya grafiti cyongerwaho 25%, kandi umwanda w’imyanda ishongeshejwe wagabanutse munsi y’ibipimo ngenderwaho by’inganda.

Mu gukura kwa silikoni ya Czochralski (CZ), icyuma gikozwe muri grafiti gikora nk'igice cy'ingenzi gitwara imizigo n'ubushyuhe gishyigikira icyuma gikozwe muri quartz na silikoni ishongeshejwe (>1,450°C). Ubuziranenge bwayo n'imikorere yayo mu gushyuha bigena mu buryo butaziguye umusaruro w'ibirungo n'imiterere y'amashanyarazi. Ibikoresho bisanzwe bya grafiti akenshi bitera guhindagurika kwa quartz, gukwirakwira kw'imyanda mu byuma, no kwanduza silicon. Iyi nyigo isobanura uburyo itsinda rikuru ry'abahanga mu by'ubushyuhe muri VET ryagennye ibikoresho bikozwe muri grafiti ya S-AG (Ubudage), rikemura ibibazo by'imyanda n'ubushyuhe mu gihe cy'ubushyuhe bwinshi kugira ngo rigere ku musaruro uhagije.

Ishusho ya 1: Ishusho y'ishyirwaho rya VET high-purity isostatic graphite crucible iri imbere mu itanura rikurura kristale rya Czochralski (CZ)

Uburyo Ibikoresho bya Graphite Bisukuye Cyane Bigabanya Kwanduzwa n'Ibisembwa muri CZ Silicon

Umwanzuro w'ingenzi: Ibikoresho bya grafiti bya isostatic bifite ivu ringana na <5 ppm bizitira neza ikwirakwira ry'ibintu by'icyuma bidafite ishingiro mu gushonga kwa silicon, bigabanya cyane igipimo cyo kwimuka kwa kristu no kongera igihe cyo gutwara ibintu bike.

1. Ingingo zo gusaba no kubabaza abakiriya

Mu gihe yakoraga amatanura ya silikoni ya santimetero 300 (300mm) ya CZ semiconductor-grade CZ mu Budage, umukiriya wa S-AG yahuye n'igabanuka rikomeye ry'ubuzima bwe bwose bw'ingufu zo gutwara ibintu bito ndetse n'umuvuduko wo kwimuka kw'inkombe. Isuzuma ryagaragaje ko imyanda y'ivu (B, Fe, Cu) mu byuma bisanzwe bya grafiti yinjiye mu nkuta za quartz mu gihe cyo gukurura ku bushyuhe buri hejuru ya 1,450°C. Iyi myanda yakwirakwiriye mu buryo butaziguye muri silikoni ishonga, ibangamira imiterere ya kristu kandi ikabuza wafers kuzuza amahame y'ubuziranenge ya SEMI C12 na ISO 9001.

2. Igisubizo cy'Ubwubatsi n'Ishyirwa mu Bikorwa ry'Ibikorwa

Itsinda ry’abahanga mu by’ubumenyi bw’ikirere ryatanze ibikoresho bya grafiti bifite ubucucike bwinshi byakoreshejwe mu gutunganya gaze ya halogen mu bushyuhe bwinshi:

• Guhitamo ibikoresho no gutunganya byimbitse:Ingano nto (ingano y'ingano ≤ 8 μm) n'ubucucike bwinshi (≥ 1.85 g/cm³) byatunganyijwe mu itanura ry'umwuka mu gihe cy'amasaha 72 rya gaze ya halogen ifite ubushyuhe bwinshi, bituma ivu ryose rigabanuka kugeza kuri <5 ppm.
• Isuzuma rya GDMS Batch:Isuzuma ry’ubushyuhe bw’amashanyarazi (GDMS) ryakozwe mu gusuzuma imyanda y’icyuma cy’ingenzi, rigenzura ko ibintu byanduye byagabanutse ku rugero rwa ppb (reba imbonerahamwe y’amakuru iri hepfo).

Ikintu cy'umwanda	Graphite isanzwe yoherezwa hanze	Graphite ya VET ifite isuku nyinshi	Igipimo cya S-AG (SEMI C12)
Ivu ryose	≈ 150 ppm	< 3.8 ppm	< 5.0 ppm
Icyuma (Fe)	12.5 ppm	18 ppb	< 50 ppb
Umuringa (Cu)	3.2 ppm	< 5 ppb	< 10 ppb
Boroni (B)	1.8 ppm	12 ppb	< 20 ppb
Nickel (Ni)	4.1 ppm	15 ppb	< 30 ppb

Nyuma yo gukoresha silicon melt, ubwandu bw'imyanda ya silicon melt bwagabanutseho hejuru ya 85%, mu gihe impuzandengo y'ubuzima bw'imodoka nto ya ingot yazamutseho 32%. Sura urubuga rwacu rwacu.[Agace ko gusukura gazi ya Halogen mu bushyuhe bwinshi n'agace ko gupima GDMS]kugira ngo hasuzumwe ibisobanuro birambuye bya tekiniki.

Ishusho ya 2: Igereranya ry'igihe cyose cy'ibikoresho byo gutwara amashanyarazi bitwara amatungo make mbere na nyuma yo gukoresha VET high-purity graphite crucibles muri S-AG

Kunoza imiterere y'ubushyuhe n'ubudahangarwa bw'ingufu ziterwa n'ubushyuhe binyuze mu gutwika ibyuma bya Isostatic Graphite

Umwanzuro w'ingenzi: Uburyo bumwe bwo gutwara ubushyuhe buvangwa n'ubushyuhe hamwe n'imbaraga nyinshi za mekanike birinda neza impinduka mu buryo bw'ubushyuhe no kwangirika kw'uturemangingo mu gihe cy'ubushyuhe busubiramo.

1. Ingingo zo gusaba no kubabaza abakiriya

Ibikoresho bya grafiti bya S-AG bya mbere byakunze kwaguka ubushyuhe butari bumwe, gucika urukuta, cyangwa gucika intege nyuma y’amasaha menshi y’ubushyuhe. Ibi byatumye habaho stress idahuye no koroshya/gusenyuka kw’ibikoresho bya quartz imbere mu bushyuhe bwinshi, bituma itanura rifunga. Impuzandengo y’igihe cy’ubushyuhe cya grafiti yari munsi ya metero 180, bigatuma habaho ikiguzi kinini cyo kubungabunga no guhagarika.

2. Igisubizo cy'Ubwubatsi n'Ishyirwa mu Bikorwa ry'Ibikorwa

Kugira ngo hakemurwe ikibazo cy’ubushyuhe bwinshi, Dr. Marcus yayoboye itsinda ry’abahanga mu by’ubuvuzi bw’ibinyabuzima binyuze mu nzira isanzwe yo gusimbuza ibyiciro bitatu:

[Icyiciro cya 1: Gusuzuma indwara] • Uburyo bwo gushushanya ubushyuhe bwa FEA • Gutunganya neza CTE (4.8×10−&sup6;/K)

[Icyiciro cya 2: Inganda] • Gukanda Isostatic mu Bukonje • Imbaraga zo Kugosoka za MPa 45

[Icyiciro cya 3: Igenzura] • Igeragezwa ry'iminsi 60 ku rubuga • Imizunguko y'ubushyuhe irenga 220

• Isuzuma ry'imiterere n'uburyo ubushyuhe buhuzwa (Isuzuma):Itsinda ryakoze isesengura rya Finite Element Analysis (FEA) ku miterere y'ubushyuhe ya S-AG, rinavugurura imiterere ya grafiti crucible ifite ibice bitatu. Imiterere y'ibikoresho yahinduwe kugira ngo ihuze Coefficient of Thermal Expansion (CTE) kuri 4.8 × 10− & sup6; / K, igera ku rwego rwo hejuru hamwe na quartz liner kuri 1,450°C no gukuraho gukanda kwa mechanical.
• Ingufu nyinshi zo gukora no gutunganya neza (Gukora):Gukoresha icyuma gikonjesha (CIP) byakoze ibyuma bya grafiti bifite imbaraga zo guhindagurika za MPa 45. Uburyo bwo gutunganya CNC bufite umurongo wa 5 (± 0.01mm) bwatumye ibice bihangana n’ingaruka za mekanike n’ubushyuhe iyo byari byuzuyemo ibiro amagana bya silikoni.
• Gusuzuma no Kwemeza Igihe cy'Ubuzima (Igenzura):S-AG yakoze igerageza ry’iminsi 60 rikomeza mu Budage. Nyuma y’amasaha arenga 220 y’ubushyuhe (amasaha agera ku 1.500 ku bushyuhe bukabije), ingano zagumye nta guhindagurika kw’ibikoresho nta mikorobe, bituma habaho gukuraho burundu kuzimya kw’itanura kwaterwaga no gucika intege kw’ibikoresho byo mu bwoko bwa crucible.

Ishusho ya 3: VET 5-axis precision CNC machining na GDMS mass spectrometry purity igenzura imikorere

Gukoresha uburyo bwo kugenzura ubushyuhe neza mu gukura kwa silicon ya CZ Monocrystalline

Umwanzuro w'ingenzi: Gukoresha neza uburinganire bw'imiterere y'ikirere n'uburyo ubushyuhe bukwirakwira bishimangira imiterere y'amazi akomeye, bigagabanya ihindagurika ry'ubwinshi bwa ogisijeni mu gihe cy'ikura ry'amakristale rirambye.

1. Ingingo zo gusaba no kubabaza abakiriya

Mu gihe cyo gukurura cyane utubuto twa silikoni twa santimetero 12 dufite dope nyinshi cyangwa tudafite inenge, kudahuza kw'ubushyuhe ku gice cy'amazi gikomeye bituma habaho gushonga kw'amazi. Ibi bituma habaho ihindagurika ry'ubwinshi bwa ogisijeni mu gice cy'imbere n'icya kure, bigagabanya umusaruro wo gukurura mu gihe cyo gukata wafer nyuma.

2. Ishyirwa mu bikorwa rya tekiniki n'agaciro

• Igereranya ry'Ubushyuhe:Uburyo bwa FEA bwo gupima inzira zo gushyushya ubushyuhe buri hagati ya 1.450°C na 1.550°C, butuma habaho ingano y'ubugari bw'inkuta.
• Kugenzura kwihanganira uburinganire:Ubwinshi bw'urukuta bwari bugabanijwe muri ± 0.005mm, byongera ubushyuhe ku kigero cya 18%.

Binyuze mu kugenzura neza ubushyuhe, S-AG yageze ku ntera ya 22% mu bijyanye n'ubwinshi bw'umwuka wa ogisijeni mu gice cy'ingufu, kwiyongera kwa 8% mu muvuduko wo gukurura, no kugabanuka kugaragara kw'inenge zo kwimuka. Kugira ngo umenye byinshi ku bikubiye muri iyo ngingo, reba amakuru yacu arambuye ku bijyanye n'ubushyuhe.[Ibikoresho bya Graphite Isostatic Crucibles bifite isuku nyinshi n'ibice by'umurima ushyushye]kataloge y'ibicuruzwa.

Ibibazo Bikunze Kubazwa (Ibibazo Bikunze Kubazwa)

Umwanzuro n'agaciro k'umukiriya

Binyuze mu gukoresha ibikoresho bya VET bya grafiti isostatic crucibles hamwe n'ibisubizo byihariye ku butaka bushyushye, S-AG nini y'i Burayi yatsinze ikwirakwizwa ry'imyanda n'imbogamizi ku bushyuhe. Ingaruka z'ingenzi z'umushinga zirimo:

• Umusaruro wo gukurura silikoni imwe ikoze mu buryo bwa monocrystalline wiyongereyeho14.2%
• Igihe cyo gukoresha igice cy'ubushyuhe cya grafiti cyayongerewe na25%(irenga 220+ ubushyuhe)
• Ingufu zose zikoreshwa kuri buri kg ya silikoni zagabanutseho hafi11%

Ibyerekeye Umwanditsi n'Itsinda ry'Abahanga Dr. Marcus — Injeniyeri Mukuru w’Ibikoresho by’Ubushyuhe n’Ibintu Bigezweho, VET Dr. Marcus afite uburambe bw'imyaka irenga 15 mu bushakashatsi no mu iterambere mu gushushanya urwego rw'ubushyuhe bwa semiconductor no gutunganya imiterere ya karuboni, yibanda ku gukora igenamigambi rya CZ furnace thermal stress na graphite yo mu rwego rwo hejuru (<5 ppm). Ubu bushakashatsi bushingiye ku makuru ajyanye n'ishyirwa mu bikorwa ry'urwego rw'ubushyuhe yavuye mu mukiriya w'i Burayi S-AG (Raporo No: VET-CS-2025-SAG04).

Witeguye kunoza urwego rwawe rwo gushyushya rw'ifuru ya CZ? Niba uhuye n'ikibazo cy'umwanda uri hejuru, graphite crucible warping, cyangwa ubuzima bwawe bwo gutwara ibintu butari buke, hamagara itsinda ry'abahanga mu by'ubwubatsi rya VET kugira ngo bakubwire uburyo bwihariye bwo gushushanya bwa FEA no gusimbuza ibikoresho byo gusimbuza ibikoresho byo mu rwego rwo hejuru. Witeguye kunoza urwego rwawe rwo gushyushya rw'ifuru ya CZ? Niba uhuye n'ikibazo cy'umwanda uri hejuru, graphite crucible warping, cyangwa ubuzima bwawe bwo gutwara ibintu butari buke, hamagara itsinda ry'abahanga mu by'ubwubatsi rya VET kugira ngo bakubwire uburyo bwihariye bwo gushushanya bwa FEA no gusimbuza ibikoresho byo gusimbuza ibikoresho byo mu rwego rwo hejuru. Reba Ibicuruzwa bya Graphite Isukuye Cyane Saba igisubizo cyihariye n'ingero za GDMS