Injin CNC don Semiconductors:
Masana'antu na Daidaito a Zuciyar Juyin Juya Halin Guntu
Masana'antar semiconductor ita ce ginshiƙin fasahar zamani. Daga wayoyin komai da ruwanka da kwamfyutocin tafi-da-gidanka zuwa tsarin leƙen asiri na wucin gadi, motocin lantarki, da na'urorin likitanci na zamani, kusan babu abin da ke aiki a yau ba tare da haɗakar da'irori (ICs) ba. A cikin wannan masana'antar akwai buƙatar daidaito da aka auna a cikin micrometers har ma da nanometers.
Duk da cewa daukar hoto, adana siraran fim, da kuma yin zane-zane sun mamaye kanun labarai lokacin da mutane ke magana game da yin guntu, akwai na'urar da ba a yaba mata ba amma mai matuƙar muhimmanci a bayan fage: Injin Kula da Lambobin Kwamfuta (CNC). Injin CNC mai inganci yana samar da kayan aiki masu faɗi, masu kwanciyar hankali a yanayin zafi, kuma masu kyau a fannin geometric waɗanda ke sa kayan aikin kera semiconductor su yiwu.
Wannan labarin ya binciki dalilin da yasa injinan CNC suka kasance ba makawa a cikin yanayin semiconductor, wanda sassan suka dogara da shi, kayan aiki da juriya da ke tattare da shi, juyin halittar kayan aikin injina da hanyoyin aiki, da kuma ƙalubalen da za a fuskanta nan gaba yayin da masana'antar ke ci gaba da ƙera kayayyaki a zamanin angstrom.
Me yasa Injin CNC ya kasance mai mahimmanci a Semiconductor
Kayan aikiMasana'antun kera na'urorin Semiconductor (masana'anta) suna ɗauke da ɗaruruwan kayan aikin sarrafawa, kowannensu yana kashe daga dala miliyan 10 zuwa sama da dala miliyan 400 (idan aka kwatanta da tsarin ASML na High-NA EUV). Kusan kowanne daga cikin waɗannan kayan aikin yana ɗauke da ɗaruruwan ko dubban sassan da aka yi amfani da su daidai.Babban dalilan da yasa ba za a iya maye gurbin injinan CNC gaba ɗaya ba:
- Matsanancin sarkakiyar siffofi: Yawancin sassa suna da hanyoyin sanyaya ciki masu rikitarwa, ramuka masu girman gaske, siraran bango, da kuma siffofi masu rikitarwa na 3D waɗanda suke da wahala ko ba za a iya samar da su ta hanyar amfani da siminti, ƙirƙira, ko hanyoyin ƙari masu tsabta ba.
- Bambancin kayan aiki: Kayan aikin Semiconductor suna amfani da aluminum, bakin karfe (jerin 300, 316L, 17-4PH), titanium, jan ƙarfe, yumbu (Al₂O₃, AlN, SiC), invar, da superalloys. CNC na iya ɗaukar dukkan su.
- Juriyar da ta yi tsauri sosai: Faɗin 1-5 µm a fadin diamita na mm 450, matsayin rami ±2 µm, ƙazanta a saman Ra < 0.1 µm, da kuma daidaito < 2 µm abu ne da ya zama ruwan dare.
- Daidaitawar injin tsabtace iska da na plasma: Dole ne sassan su tsira daga matsanancin sinadarin fluorine ko chlorine, injin tsabtace iska mai ƙarfi (10⁻⁹ mbar), da kuma yanayin zafi daga −100 °C zuwa >800 °C ba tare da fitar da hayaki ko barbashi ba.
- Gyara da Gyara: Ana yin amfani da kayan aiki da yawa (misali, gyaran bututun lantarki) akai-akai, a sake shafa su, sannan a mayar da su ga aiki - zagayawa ne kawai zai yiwu tare da hanyoyin ragewa.
Mahimman Kayan Aiki da CNC Machining ta ƙera
1. Ɗakunan Wanka da Manyan Firam ɗin Tsarin
Kayan aikin zamani na wafer mai tsawon mm 300 da kuma waɗanda ke fitowa daga 450 mm suna ɗauke da ɗakunan injinan ƙarfe na aluminum ko bakin ƙarfe waɗanda za su iya nauyin tan da yawa amma dole ne su kiyaye daidaiton bango da kuma lanƙwasa zuwa ƙasa da µm. Waɗannan ɗakunan galibi ana kera su ne daga kayan aikin aluminum na 6061-T6 ko faranti na bakin ƙarfe 316L akan manyan injinan niƙa mai tsawon axis 5 tare da hanyoyin jagora na hydrostatic.
2. Matakan Wafer da Matakan Reticle
Zuciyar kayan aikin lithography na EUV da DUV ita ce matakin wafer wanda ke motsa wafers ɗin silicon 300 mm a ƙarƙashin hasken gani a lokacin da aka ƙara saurin gudu fiye da 8g yayin da yake kiyaye daidaiton matsayin nanometer. Waɗannan matakai sune haɗakar abubuwa masu rikitarwa na yumbu (gilashin SiSiC, Zeduror, ULE) ko sassan aluminum waɗanda aka ƙera zuwa jurewar sub-micron sannan a juya su da hannu ko lu'u-lu'u zuwa yanayin ƙarshe.
3. Electrostatic Chucks (ESC)
Maƙallan lantarki suna riƙe wafers daidai a lokacin lithography, etching, da deposition. Dole ne a yi amfani da saman dielectric (yawanci Al2O3 ko AlN serami da aka fesa a kan tushen aluminum ko molybdenum) kuma a goge shi zuwa faɗin kololuwa < 1 µm a fadin 300 mm. Tushen da kansa yana buƙatar tashoshi masu sanyaya ciki masu rikitarwa waɗanda aka ƙera ta hanyar injin niƙa CNC mai sauri ko waya EDM.
4. Rarraba Gas Shawa da Zoben Gefen
Kayan aikin fesawa da adanawa na plasma suna amfani da kawunan shawa masu dubban ramuka masu girman daidai kuma an sanya su a wuri ɗaya (diamita 50-500 µm) don isar da iskar gas iri ɗaya. Ana yin waɗannan ne daga aluminum mai tsabta, silicon, ko quartz, galibi suna amfani da cibiyoyin injin CNC masu yawa tare da ƙarfin haƙa mai amfani da ultrasonic ko laser.
5. Abubuwan da ke Sanya Ido da Na'urorin Haɗawa
Tsarin lithography na EUV yana aiki a tsawon nisan nm 13.5 kuma yana amfani da madubai masu launi da yawa na molybdenum-silicon. Ana fara yin amfani da madaurin madubi (yawanci gilashin Zeduror ko ULE) ta hanyar juya lu'u-lu'u mai maki ɗaya ko niƙa daidai, sannan a goge su ta hanyar gani. Dole ne a yi amfani da injinan kinematic waɗanda ke riƙe waɗannan madubai da CNC daga Invar ko Super Invar don rage karkacewar zafi.
Kayan da ake amfani da su a Semiconductor CNC Injin
1. Alloys na Aluminum
6061-T6 ya kasance babban abin aiki saboda ingantaccen injin aiki, ƙarfin da ya dace, da ƙarancin farashi. Don ƙarin tauri da ƙarancin faɗaɗa zafi, ana amfani da ƙarfe na aluminum na musamman kamar Al 6061-RAM2, RSA-6061, ko Cearun™ (aluminum mai ƙarfafa yumbu).
2. Ƙananan ƙarfe masu faɗaɗawa
Invar 36 da Super Invar (tare da ƙarin cobalt) suna ba da faɗaɗa zafi <1 ppm/°C kuma suna da mahimmanci ga abubuwan da ke cikin reticle da wafer.
3. Gilashin Yumbu da Fasaha
- Silinda carbide mai shiga cikin silicon (SiSiC)
- Silicon carbide mai haɗin amsawa (RBSC)
- Gilashin faɗaɗawa mai ƙarancin ƙarfi na Zedurod® (Schott) da ULE® (Corning)
- Aluminum nitride (AlN) da alumina (Al2O3) don maƙallan lantarki
Waɗannan kayan da suka lalace suna buƙatar takamaiman hanyoyin CNC: injinan ultrasonic, niƙa mai tsarin ductile, ko injinan da laser ke taimaka wa.
4. Karfe Mai Tsabta
Ana amfani da Molybdenum, tungsten, da titanium don abubuwan da aka fallasa ga plasmas na fluorine. Waɗannan ƙarfe masu hana ruwa suna buƙatar injunan CNC masu ƙarfi, masu ƙarfi da kayan aikin polycrystalline lu'u-lu'u (PCD).
Kayan Aikin Semiconductor Na Musamman da CNC Injin Ya Yi
bangaren | Kayan Asali | Muhimmin Bukatun | Misalan Juriya |
|---|---|---|---|
Wafer chucks (ESC) | Alumina, AlN | Faɗin ƙasa < 3 µm, Ra < 0.05 µm, ɗigon helium < 10⁻⁹ | Matsayin rami na ± 2 µm |
Kan shawa / Farantin iskar gas | Anodized Al, 316L SS | Raƙuman 5000–20,000 Ø0.3–1.0 mm, matsayi ±5 µm | < Ra 0.4 µm |
Bangon ɗakin injin tsotsa | 6061-T6, 5083 Al | An haɗa shi da walda + injina, yana hana kwararar helium | Faɗin ƙasa < 50 µm sama da mita 2 |
Taro na lantarki | OFHC jan ƙarfe, molybdenum | RF conductivity, tashoshin sanyaya | Wurin tashar ±10 µm |
Tarin abubuwan ɗaga fil ɗin ɗagawa | Bakin da aka shafa da yumbu | Juriyar lalacewa, sarrafa barbashi | Mayar da hankali < 5 µm |
Tsarin gine-gine (EUV) | Invar 36, ƙarancin CTE gami | Daidaiton zafi <50 ppb/K | Daidaiton matsayi ±15 µm |
Zoben mayar da hankali, zoben gefe | Silicon, quartz, SiC | Juriyar yashewar jini | Juriyar Bayanan martaba ±10 µm |
Waɗannan sassan suna da girma daga milimita kaɗan zuwa sama da mita 2 da kuma nauyi daga gram zuwa tan da yawa.
Matakan Daidaito da Tsarin Ma'auni
Juriya ta yau da kullun a cikin injin kayan aikin semiconductor:
Feature | Hakuri na Hakuri | Hanyar aunawa |
|---|---|---|
Faɗi (fuskar 300 mm) | PV mai girman 0.5–2 µm | Interferometry (Fizeau, Zygo) |
Daidaici | 1-5 µm | Matakan lantarki + interferometry |
Matsayin rami (dubban ramuka) | ± 2-5 µm | Na'ura mai daidaitawa (CMM) |
Tsarin wuri | Ra 0.025-0.1 µm | Interferometry mai haske fari |
Matsayin tashar sanyaya | ± 10 µm | Gwajin CT ko gwajin ultrasonic |
Manyan shaguna yanzu suna samun daidaiton injina na "sub-micron" ko ma "nanometer 100" akai-akai akan abubuwan da ke auna ɗaruruwan kilo.
Juyin Halittar Kayan Aikin Injin CNC don Aikin Semiconductor
1. Zamanin 1990-2000
Manyan injinan niƙa mai ƙarfi (Waldrich Coburg, Parpas, FPT) waɗanda sikelin Heidenhain da kuma ra'ayoyin gilashin suka mamaye. Bearings na hydrostatic da shawa mai sun samar da kwanciyar hankali na zafi.
2. Shekarun 2010: Matakan ɗaukar iska da kuma Magnetic Levitation
Kamfanoni kamar Aerotech, Physik Instrumente (PI), da ALIO Industries sun gabatar da matakan injinan layi masu ɗaukar iska tare da maimaitawa ƙasa da nm 10. Waɗannan sun zama ginshiƙin cibiyoyin injinan tsara na biyu.
3. Yanayin da ake ciki a yanzu (2020–2025)
- Injinan juya lu'u-lu'u na Moore Nanotechnology da Precitech masu maki ɗaya don abubuwan madubi na EUV
- Cibiyoyin Kern Microtechnik da Yasda micromachining suna samun daidaiton siffar nm 100
- Jerin DMG MORI Ultrasonic don yumbu
- Fanuc ROBONANO α-NMiA: ƙudurin shirye-shirye na 0.1 nm da ƙudurin matsayi na 1 nm
- Shagunan da ke sarrafa zafin jiki suna aiki a ±0.01 °C tare da tushen keɓewar girgiza mai aiki
Kalubalen Kayan Aiki da Zaɓe
1. Aluminum Alloys
6061-T6 da 5083 suna da ƙarfin aiki saboda ingantaccen ƙarfin injina da amsawar anodization. Anodizing mai ƙarfi (Nau'i na III) yana ƙirƙirar Layer na 25–50 µm Al₂O₃ wanda ke tsayayya da harin plasma. Duk da haka, ƙananan ramuka a cikin anodizing na iya kama barbashi - shagunan zamani suna amfani da rufewa mai matakai da yawa da kuma rufin mallaka (misali, Twin Wire Arc Spray Al₂O₃ ko Y₂O₃ plasma spray).
2. Bakin Karfe
Ana zaɓar 316L don juriya ga tsatsa akan plasmas na NF₃ da Cl₂. Ana buƙatar electropolishing zuwa Ra < 0.2 µm don rage mannewar barbashi.
3. Yumbu
Ana amfani da kayan aikin lu'u-lu'u na aluminum (99.8%), aluminum nitride, da silicon carbide a yanayin "kore" na injina, sannan a tace su. Juriyar bayan sintering ta ragu da kashi 18-22%, wanda ke buƙatar samfuran diyya mai kyau na rage gibin ...
4. Ƙananan ƙarfe masu ƙarancin CTE
Ana amfani da Invar 36 da Super Invar a matakan lithography na EUV da DUV inda ake buƙatar daidaiton nanometer a duk lokacin da zafin jiki ya canza daga digiri 10 zuwa 40 na Celsius.
5. Karfe masu tsaurin kai
Ana ƙera Molybdenum da tungsten don amfani da na'urorin lantarki masu zafi sosai. Waɗannan kayan suna da matuƙar gogewa kuma suna buƙatar injuna masu tauri tare da na'urar sanyaya iska mai matsin lamba (sanduna 70-100).
Tsarin Inji Mai Muhimmanci
1. Injin Aluminum Mai Sauri (HSM)
SSaurin pindle na 20,000–42,000 rpm, daidaitaccen kayan aikin PCD ko lu'ulu'u guda ɗaya, sanyaya hazo, da kuma tsarin duba gaba suna ba da damar kammalawa kamar madubi (Ra < 4 nm) a cikin wucewa ɗaya.
2. Tsarin Ductile na Injin Yumbu
Ta hanyar kiyaye zurfin yankewa a ƙasa da maƙasudin mahimmanci (yawanci ƙasa da µm), ana iya ƙera kayan da ke da rauni a cikin yanayin ductile ta amfani da kayan aikin lu'u-lu'u masu kaifi sosai, suna samar da saman da ke da inganci ba tare da fashewa ba.
3. Juyawar Lu'u-lu'u Daya-daya (SPDT)
Yana da mahimmanci ga madaurin madubi na EUV mai siffar aspheric. Injina suna aiki a cikin yanayin da ba a iya amfani da mai ko injin tsabtace ruwa ba tare da ra'ayoyin sub-nanometer ba.
6.4 Waya EDM da Sinker EDM
Ana amfani da shi don hanyoyin sanyaya mai zurfi da fasaloli masu rikitarwa a cikin kayan da aka taurare. Injin samar da wutar lantarki na zamani yana samun kammala saman < Ra 0.1 µm a cikin yankewa ɗaya.
5. Ƙirƙirar Haɗin Gwiwa Mai Ƙarawa + Mai Rage Ragewa
Tsarin da ke tasowa: Siffofin Invar ko titanium na bugawa ta 3D, sannan injin gamawa a kan dandamali ɗaya (misali, Hermle MPA ko Lasertec DED hybrids).
Bukatun CNC na daidaici da matsananci
Sassan Semiconductor suna buƙatar lokaci-lokaci:
- Daidaiton matsayi: ±2–5 µm sama da tafiyar 500–2000 mm
- Maimaitawa: < 1 µm
- Kammalawar saman: Ra 0.025–0.1 µm akan saman da ke fuskantar plasma
- Faɗi: 1–3 µm sama da Ø300–450 mm
- Daidaito/daidaituwa: < 3 µm
- Cibiyoyin injinan axis 5 ko ma cibiyoyin injinan axis 8 (misali, Yasda, Makino, DMG MORI, Kern, Liechti)
- Maƙallan ruwa masu ɗaukar iska ko na hydrostatic suna gudana a gudun 20,000–60,000 rpm
- Tsarin daidaita yanayin zafi wanda ke kiyaye zafin injin a cikin ±0.1 °C
- Na'urorin bincike na kan injin da na'urorin laser tare da ƙudurin 0.1 µm
- Tushen dutse ko siminti mai ƙarfi tare da keɓewar girgiza mai aiki
Idan kana so ka yi amfani da su, to, za a iya tallata su. Ut elit gaya, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Nagartattun Dabarun Machining
1. Injin Sauri Mai Sauri (HSM) tare da Ƙananan Kayan Aiki
Kan shawa na iya samun ramuka 15,000 na Ø0.5 mm da aka haƙa a gudun 40,000 rpm tare da injin niƙa mai ƙarfin 0.1 mm. Haƙa peck tare da na'urar sanyaya kayan aiki mai sanduna 100 yana hana sake walda guntu.
2. Ultrasonic-Taimakawa Machining
Ga yumbu da ma'adini, girgizar ultrasonic ta 20-40 kHz tana rage ƙarfin yankewa da kashi 30-70%, wanda hakan ke inganta ƙarewar saman da tsawon rayuwar kayan aiki sosai.
3. Juyawar Lu'u-lu'u Daya-daya (SPDT)
Ana amfani da shi don ruwan tabarau na infrared da wasu na'urorin lantarki na jan ƙarfe. Kammalawar saman ƙasa zuwa Ra 3–5 nm abu ne na yau da kullun.
4. Niƙa Geometrics masu rikitarwa a lokaci guda 5-axis
Ana amfani da kayan aikin da suka yi tsayi da kuma hanyoyin sarrafa sanyi na trochoidal wajen kera hanyoyin sanyaya na ciki masu diamita 1 mm da kuma rabon al'amari na 20:1.
5. Tsarin Haɗin ...
Wasu sabbin kayan aiki (misali, kanan shawa masu sanyaya yanayi) ana buga su da Inconel ko jan ƙarfe ta hanyar DMLS/LaserCusing, sannan a gama su a kan injin iri ɗaya zuwa ±10 µm.
Tsarin Aiki da Tabbatar da Inganci
Sassan Semiconductor suna fuskantar bincike mafi tsauri a kowace masana'antu:
- Zeiss Prismo ko Leitz PMM-C ultra-precision CMMs tare da rashin tabbas na ±0.3 µm
- Zygo GPI ko 4D Fasaha mai canza matakai don daidaita lanƙwasa
- Ma'aunin haske mai haske mai haske Bruker don saman Ra < 50 nm
- Gwajin zubar da ruwa na Helium mass-spectrometer zuwa 10⁻¹⁰ mbar·L/s
- Binciken Iskar Gas na Rago (RGA) bayan zafin 150 °C ya gasa don tabbatar da cewa iskar gas ta fita < 10⁻⁹ Torr·L/s/cm²
- Ƙirƙirar ƙwayoyin cuta ta hanyar lissafin ƙwayoyin cuta na ruwa (LPC) ko na'urar daukar hoton ƙwayoyin cuta ta laser bayan tsaftacewar ultrasonic
Injin Tsafta da Bayan Aiki
Saboda ƙwayoyin da suka fi 30 nm na iya kashe transistor mai ƙarfin 3 nm, shaguna da yawa masu tsada sun sanya ɗakunan tsaftacewa na ISO 5 (Class 100) ko ISO 4 kai tsaye a kusa da injunan su na daidai.
Misalan sun hada da:
- Bullen Ultrasonics (Amurka)
- Wurin tsaftace ɗakin CNC na Tyrolit (Austria)
- Ɗakin tsaftace injinan gyaran gashi na Utsunomiya na Canon (Japan)
- Ruwa mai matsin lamba mai yawa + tashin hankali mai yawa
- Tsaftace sinadarai matakai da yawa (SC-1, SC-2, piranha)
- Tsarkakken N₂ busarwa mai ƙarfi
- Gasa a cikin injin girki mai zafi 150–200°C
- Jaka biyu a cikin jakunkuna masu tsabta da N₂
Nazarin Shari'a: Yin Injin Tushen Matakin Wafer na EUV
Farantin matakin wafer na EUV na yau da kullun 450 mm yana nuna rikitarwar:
- Kayan aiki: SiSiC yumbu, 900 × 800 × 100 mm
- Bukatar lanƙwasa: < 1 µm PV a saman gaba ɗaya
- Tashoshin sanyaya guda 120 da aka saka, diamita na mm 3, matsayi ±15 µm
- Abubuwan da aka saka da zare 600 (M4 helium-light)
- Fuskar ƙarshe: an lanƙwasa zuwa Ra < 50 nm
- Kayan aikin kore na blank mai haɗin amsawa
- Shigar da silicon da maganin zafi
- Nika mai ƙarfi a cibiyar injinan 5-axis
- Niƙa tsarin ductile tare da zurfin yankewa na 1 µm
- kammala Magnetorheological (MRF) don gyara fom na ƙarshe
- Ma'aunin aunawa akan Zygo VeriFire MST 600 mm aperture interferometer
- Lapping na ƙarshe na hannu idan ana buƙata
Kalubale yayin da Masana'antu ke matsawa zuwa ƙananan na'urori masu ƙarancin 2 nm
1. Daidaiton Matakin Angstrom
Kayan aikin EUV masu ƙarfi na gaba za su buƙaci daidaiton matsayi a cikin kewayon picometer 50-100. Wannan yana tura kayan aikin injiniya zuwa ga iyakokin kayan aiki na asali.
2. Canjin 450 mm
Manyan wafers suna buƙatar manyan kayan aikin da aka yi da injina tare da daidaito iri ɗaya - ƙaruwar wahala mai yawa.
3. Sabbin Kayayyaki
Kayan da aka yi da carbon (rufin graphene, carbon mai kama da lu'u-lu'u), haɗakar matrix na ƙarfe, da tsarin photonic za su buƙaci sabbin dabarun injina gaba ɗaya.
4. Dorewa
Masana'antar tana fuskantar matsin lamba don rage amfani da makamashi, ruwa, da sinadarai. Shagunan injina suna amfani da man shafawa mai ƙarancin yawa (MQL), sanyaya iska, da kuma sake amfani da guntun aluminum.
Kammalawa
Duk da cewa hasken da ke cikin labaran semiconductor ya ci gaba da kasancewa kan tsawon lithography da yawan transistor, gaskiyar magana ita ce babu wani guntu mai ƙarfi da za a iya ƙera ba tare da rundunar kayan aikin injiniya masu inganci da injin CNC ke samarwa ba. Daga ɗakunan injinan ...
Yayin da masana'antar ke ƙoƙarin samun fasalulluka na sikelin angstrom da wafers na mm 450, buƙatun injinan daidaici za su ƙara ƙaruwa. Shagunan da za su iya samar da daidaiton ƙananan micron akan sassan sikelin mita, a cikin kayan da ba a saba gani ba, a ƙarƙashin yanayin tsafta, za su ci gaba da kasancewa abokan hulɗa marasa mahimmanci ga ASML, Applied Materials, Lam Research, Tokyo Electron, da kuma masu kera chip ɗin kansu.
A ƙarshe, sanannen Dokar Moore ba wai kawai labarin kimiyyar lissafi da sinadarai ba ne—har ila yau, nasara ce ta injiniyan injiniya wanda aka aiwatar da wani abu da aka sarrafa shi daidai gwargwado a lokaci guda.