CNC Machining rau Semiconductors:
Kev Tsim Khoom Uas Muaj Kev Ntsuas Zoo Tshaj Plaws Hauv Lub Plawv ntawm Kev Hloov Pauv Chip
Table of Contents
ToggleVim li cas CNC Machining Tseem Ceeb Hauv Semiconductor
- Qhov nyuaj ntawm cov duab geometric heev: Ntau yam khoom muaj cov kav dej txias sab hauv uas nyuaj heev, cov qhov sib piv siab, phab ntsa nyias nyias, thiab cov duab 3D nyuaj uas nyuaj lossis tsis yooj yim sua los tsim nrog kev casting, forging, lossis cov txheej txheem ntxiv.
- Cov khoom siv sib txawv: Cov khoom siv semiconductor siv txhuas, stainless hlau (300-series, 316L, 17-4PH), titanium, tooj liab, ceramics (Al₂O₃, AlN, SiC), invar, thiab superalloys. CNC tuaj yeem ua txhua yam ntawm lawv.
- Kev kam rau siab heev: Qhov tiaj tiaj ntawm 1–5 µm hla 450 hli txoj kab uas hla, qhov chaw ± 2 µm, qhov roughness ntawm qhov chaw Ra < 0.1 µm, thiab parallelism < 2 µm yog qhov tshwm sim.
- Kev sib raug zoo ntawm lub tshuab nqus tsev thiab cov ntshav: Cov khoom yuav tsum muaj sia nyob rau hauv cov tshuaj fluorine lossis chlorine plasmas uas muaj zog heev, lub tshuab nqus tsev siab heev (10⁻⁹ mbar), thiab qhov kub ntawm -100 °C txog >800 °C yam tsis muaj pa tawm lossis tsim cov khoom me me.
- Kev Kho thiab Kho Dua Tshiab: Ntau yam khoom (piv txwv li, kev kho dua tshiab ntawm electrostatic chuck) raug tshuab dua, pleev xim dua, thiab rov qab siv dua - ib lub voj voog tsuas yog ua tau nrog cov txheej txheem rho tawm.
Cov Cheebtsam Tseem Ceeb Uas Tsim Los Ntawm CNC Machining
1. Cov Chav Nqus Tsev thiab Cov Ncej Loj
2. Cov Theem Wafer thiab Cov Theem Reticle
3. Cov Chucks Electrostatic (ESC)
4. Cov taub hau da dej faib roj thiab cov nplhaib ntug
5. Cov Cheebtsam Kho Qhov Muag thiab Cov Rooj Sib Tw
Cov Khoom Siv Hauv Semiconductor CNC Machining
1. Cov Khoom Siv Aluminium
2. Cov Hlau Uas Tsis Muaj Kev Nthuav Dav
3. Cov Khoom Siv Ua Los Ntawm Av nplaum thiab Cov Iav Siv Tes Ua
- Silicon-infiltrated silicon carbide (SiSiC)
- Cov tshuaj tiv thaiv-bonded silicon carbide (RBSC)
- Zerodur® (Schott) thiab ULE® (Corning) ultra-low expansion iav
- Aluminium nitride (AlN) thiab alumina (Al2O3) rau electrostatic chucks
Cov ntaub ntawv tawg yooj yim no xav tau cov txheej txheem CNC tshwj xeeb: kev ua haujlwm ultrasonic, kev sib tsoo ductile-regime, lossis kev ua haujlwm laser.
4. Cov Hlau Uas Muaj Kev Ntshiab Siab
Molybdenum, tungsten, thiab titanium yog siv rau cov khoom uas raug rau fluorine plasmas. Cov hlau refractory no xav tau cov tshuab CNC uas ruaj khov, muaj zog heev thiab cov cuab yeej polycrystalline diamond (PCD).
Cov Cheebtsam Semiconductor Ib Txwm Ua Los Ntawm CNC Machining
tivthaiv | Yam khoom | Cov Cai Tseem Ceeb | Piv txwv txog kev kam rau siab |
|---|---|---|---|
Cov wafer chucks (ESC) | Alumina, AlN | Qhov tiaj tiaj < 3 µm, Ra < 0.05 µm, helium xau < 10⁻⁹ | ±2 µm qhov chaw |
Cov taub hau da dej / Cov phaj roj | Anodized Al, 316L SS | 5000–20,000 qhov Ø0.3–1.0 hli, ±5 µm txoj hauj lwm | < Ra 0.4 µm |
Phab ntsa chav nqus tsev | 6061-T6, 5083 Al | Welded + machined, helium tsis xau | Kev tiaj tiaj < 50 µm tshaj 2 m |
Cov khoom sib dhos electrode | Tooj liab OFHC, molybdenum | RF conductivity, cov channel txias | ±10 µm qhov chaw ntawm cov channel |
Cov khoom sib dhos ntawm cov pin nqa | Stainless hlau uas coated nrog ceramic | Kev tiv thaiv kev hnav, kev tswj cov khoom me me | Kev sib sau ua ke < 5 µm |
Cov thav duab (EUV) | Invar 36, cov hlau sib xyaw CTE qis | Kev ruaj khov ntawm cua sov < 50 ppb/K | Qhov tseeb ntawm qhov chaw ±15 µm |
Cov nplhaib tsom xam, cov nplhaib ntug | Silicon, quartz, SiC | Kev tiv thaiv kev yaig ntawm cov ntshav | Kev kam rau siab ntawm cov ntaub ntawv ±10 µm |
Cov Qib Kev Ntsuas thiab Kev Ntsuas
feature | Yam Ua Tau Zoo | Txoj Kev Ntsuas |
|---|---|---|
Qhov tiaj tiaj (300 hli nto) | 0.5–2 µm PV | Kev Sib Txuas Lus (Fizeau, Zygo) |
Parallelism | 1–5 µm | Cov theem hluav taws xob + interferometry |
Qhov chaw ntawm lub qhov (txhiab lub qhov) | ± 2-5 µm | Coordinate ntsuas tshuab (CMM) |
Deg finish | 0.025-0.1 µm | Kev cuam tshuam dawb-lub teeb |
Txoj hauj lwm ntawm txoj kev txias | ± 10 hli | Kev kuaj mob CT lossis kev kuaj mob ultrasound |
Kev Hloov Pauv ntawm CNC Tshuab Cov Cuab Yeej rau Kev Ua Haujlwm Semiconductor
1. Lub Caij Nyoog Xyoo 1990–2000
2. Xyoo 2010: Cov Theem Uas Muaj Huab Cua Thiab Cov Theem Uas Muaj Hlau Sib Nqus
3. Lub Xeev Tam Sim No (2020–2025)
- Moore Nanotechnology thiab Precitech ib lub pob zeb diamond tig tshuab rau EUV daim iav substrates
- Kern Microtechnik thiab Yasda micromachining chaw ua tiav 100 nm daim ntawv raug
- DMG MORI ULTRASONIC series rau cov khoom siv ceramics
- Fanuc ROBONANO α-NMiA: 0.1 nm kev daws teeb meem kev sau ntawv thiab 1 nm kev daws teeb meem qhov chaw
- Cov khw muag khoom tswj qhov kub thiab txias uas khaws cia rau ntawm ±0.01 °C nrog cov hauv paus cais kev co
Cov Teeb Meem thiab Kev Xaiv Cov Khoom Siv
1. Aluminium Alloys
2. Stainless hlau
3. Ceramics
4. Cov Khoom Sib Xyaws Qis-CTE
5. Cov Hlau Uas Tsis Ruaj Khoov
Cov Txheej Txheem Tseem Ceeb ntawm Kev Siv Tshuab
1. Kev Siv Tshuab Ceev (HSM) ntawm Aluminium
Sqhov ceev ntawm lub pindle yog 20,000–42,000 rpm, PCD sib npaug lossis cov cuab yeej pob zeb diamond ib leeg, cua txias los ntawm huab cua, thiab cov txheej txheem saib ua ntej tso cai rau cov xim zoo li daim iav (Ra < 4 nm) hauv ib zaug dhau.
2. Kev Siv Tshuab Ductile-Regime ntawm Ceramics
Los ntawm kev ua kom qhov tob ntawm kev txiav qis dua qhov tseem ceeb (feem ntau < 1 µm), cov ntaub ntawv tawg yooj yim tuaj yeem ua tiav hauv hom ductile siv cov cuab yeej pob zeb diamond ntse heev, tsim cov nplaim zoo li pom tseeb yam tsis muaj kev tawg.
3. Tib-Point Pob Zeb Diamond tig (SPDT)
6.4 Hlau EDM thiab Sinker EDM
5. Kev Tsim Khoom Sib Xyaws Ntxiv + Rho Tawm
Kev Xav Tau CNC Precision thiab Ultra-Precision
- Qhov tseeb ntawm qhov chaw: ± 2–5 µm dhau ntawm 500–2000 hli kev mus ncig
- Rov ua dua: <1 µm
- Qhov chaw tiav: Ra 0.025–0.1 µm ntawm cov nplaim plasma
- Kev tiaj tiaj: 1–3 µm dhau Ø300–450 hli
- Kev sib luag / perpendicularity: < 3 µm
- 5-axis lossis txawm tias 8-axis machining chaw (piv txwv li, Yasda, Makino, DMG MORI, Kern, Liechti)
- Cov spindles hydrostatic lossis cua-bearing khiav ntawm 20,000–60,000 rpm
- Cov txheej txheem thermal stabilization ua kom lub tshuab kub hauv ± 0.1 ° C
- Cov cuab yeej siv laser los ntsuas thiab teeb tsa cov cuab yeej hauv tshuab nrog qhov kev daws teeb meem 0.1 µm
- Cov hauv paus granite lossis polymer-concrete nrog kev rho tawm kev co
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Advanced Machining Techniques
1. Kev Siv Tshuab Ceev (HSM) nrog Cov Cuab Yeej Me
2. Ultrasonic-Assisted Machining
3. Tib-Point Pob Zeb Diamond tig (SPDT)
4. 5-Axis Sib Tham Ua Ke ntawm Cov Geometries Nyuaj
5. Cov Txheej Txheem Sib Xyaws Ntxiv-Subtractive
Kev Ntsuas thiab Kev Ntsuam Xyuas Zoo
- Zeiss Prismo lossis Leitz PMM-C ultra-precision CMMs nrog ±0.3 µm tsis paub meej
- Zygo GPI lossis 4D Technology theem-hloov pauv interferometers rau flatness
- Bruker lub teeb dawb interferometers rau Ra < 50 nm nto
- Kev kuaj qhov xau ntawm Helium mass-spectrometer mus txog 10⁻¹⁰ mbar·L/s
- Kev Tshuaj Xyuas Cov Pa Roj Uas Nyob Tiav (RGA) tom qab ci 150 °C kom paub meej tias muaj pa roj tawm < 10⁻⁹ Torr·L/s/cm²
- Kev suav cov khoom me me los ntawm kev suav cov khoom me me (LPC) lossis laser particle scanner tom qab kev ntxuav ultrasonic
Kev Siv Tshuab Hauv Chav Huv Si thiab Kev Ua Tom Qab
- Bullen Ultrasonics (Tebchaws USA)
- Tyrolit CNC chav ua haujlwm huv (Austria)
- Canon lub chaw ua haujlwm huv Utsunomiya precision machining (Nyiv Pooj)
- Dej DI siab + kev co megasonic
- Kev ntxuav tshuaj ntau kauj ruam (SC-1, SC-2, piranha)
- Siv tshuab ziab plaub hau uas muaj N₂ ntshiab heev
- 150-200 ° C ci hauv qhov cub nqus tsev
- Muab ob lub hnab ntim rau hauv cov hnab uas muaj N₂ purged
Kev Kawm Txog Qhov Teeb Meem: Kev Siv Lub Tshuab EUV Wafer Stage Baseplate
- Khoom siv: SiSiC ceramic, 900 × 800 × 100 hli
- Qhov yuav tsum tau ua kom tiaj tus: < 1 µm PV thoob plaws tag nrho qhov chaw
- 120 txoj kev txias uas muab tso rau hauv, txoj kab uas hla 3 hli, qhov chaw ±15 µm
- 600 cov ntxig xov (M4 helium-lub teeb)
- Qhov kawg nto: lapped rau Ra < 50 nm
- Kev ua kom ntsuab ntawm cov khoom seem uas sib txuas nrog cov tshuaj tiv thaiv
- Silicon infiltration thiab kev kho cua sov
- Kev sib tsoo tsis zoo ntawm 5-axis machining centre
- Kev sib tsoo tiav ductile-regime nrog qhov tob ntawm 1 µm
- Magnetorheological finishing (MRF) rau kev kho qhov kawg
- Metrology ntawm Zygo VeriFire MST 600 mm aperture interferometer
- Kev siv tes kawg yog tias xav tau