EXECUTIVE SUMMARY
Xaiv ib lub ntsej muag lithography (direct-sau) system yog ib qho kev txiav txim siab tshaj plaws rau qhov chaw huv huv tshaj plaws. Thaum lub tshuab npog ntsej muag tshem tawm cov nqi siv lub ntsej muag photomask (txuag ntau txhiab daus las rau ib qho kev kho dua tshiab) thiab txo qis tsim kev hloov pauv ntawm lub lis piam mus rau feeb, kev xaiv cov khoom siv feem ntau raug kev txom nyem los ntawm kev nkag siab tsis zoo ntawm cov kev qhia tshwj xeeb.
Cov txheej txheem engineers thiab pab pawg muag khoom nquag soj ntsuam cov tshuab raws li ib qho "tsawg kawg feature loj" daim duab ntawm tus neeg muag khoom datasheet. Nyob rau hauv photolithography physics, txawm li cas los xij, ib qho kev sib cais Critical Dimension (CD) thiab qhov ntom ntom Yam Tsawg Kab / Qhov Chaw (L / S) lub sij hawm lub suab sawv cev tag nrho cov kev kho qhov muag:
• Critical Dimension (CD) txhais qhov nqaim tshaj plaws nyob ib leeg (xws li lub rooj vag transistor cais lossis hu rau stripe) uas lub kaw lus kho qhov muag tuaj yeem nthuav tawm mus rau photoresist.
• Yam tsawg kawg nkaus Line/Space (L/S) txhais qhov tsawg tshaj plaws rov qab 1: 1 kab thiab trench periodic array (xws li ntom optical gratings los yog siab - ceev interconnect busses) uas lub kaw lus muaj peev xwm tshem tau yam tsis muaj bridging, scumming, los yog sib txawv distortion.
A machine capable of printing a 0.4 μm isolated CD may require a 0.8 μm minimum line/space when patterning dense periodic arrays due to aerial image optical proximity effects, beam-dose overlap, and resist contrast thresholds. Conversely, tshwj xeeb kho qhov muag tshuab engineered rau symmetrical 1: 1 modulation tuaj yeem daws 0.5 μm CD ib txhij nrog 0.5 μm kab / chaw.
Phau ntawv qhia no muab cov txheej txheem kev tsim vaj tsev nruj heev los ntsuas Nice-Tech's maskless lithography systems (MLM 100, MLM 200, MLM 400, thiab MLM 500) tiv thaiv koj cov cuab yeej cuab tam geometry, tiv thaiv chemistry, qhov tob ntawm kev tsom xam (DOF), thiab cov kev cai huv huv.
1. Kev Taw Qhia: Vim li cas GEOMETRY DICTATES EQUIPMENT CHIPMENT
Hauv chav huv microfabrication, cov tshuab lithography tsis muaj qhov ncauj qhov ntswg (tseem hu ua ncaj qha -sau lithography, digital micromirror device [DMD] projection, lossis spatial light modulator [SLM] systems) tau hloov pauv sai prototyping, compound semiconductor fabrication, thiab qis - rau - nruab nrab ntim khoom. Los ntawm kev tshem tawm lub cev chrome- ntawm- quartz photomasks, pab pawg neeg tsim khoom tuaj yeem hais cov qauv tsim (GDSII lossis OASIS cov ntaub ntawv) raws sijhawm.
Txawm li cas los xij, xaiv lub tshuab tsim nyog yuav tsum tau saib yav dhau los saum npoo- qib kev thov kev lag luam. Thaum cov neeg yuav khoom tom ntej nug txog cov cuab yeej muaj peev xwm, cov lus nug feem ntau tsuas yog: "Qhov kev daws teeb meem ntawm lub tshuab no yog dab tsi?"
Hauv kev tsim cov lithography, "kev daws teeb meem" tsis yog ib tus lej. Lub tshuab kho qhov muag coj tus cwj pwm txawv thaum nthuav tawm ib txoj kab sib cais piv rau nthuav tawm ntau pua ntawm cov kab uas nyob ib sab uas nyob ib puag ncig micrometers sib nrug. Choosing an equipment configuration based on isolated CD when your device requires dense grating lines inevitably leads to process failure-resulting in line bridging, resist footings, or collapsed aspect ratios. Conversely, tshaj -txhais ib tug system rau ntom sub-ib nrab-micron kab thaum koj ntaus ntawv tsuas muaj 1.5 μm routing traces ntxiv nyiaj tsis tsim nyog peev thiab drastic txo wafer throughput.
Txhawm rau ua kom paub txog B2B peev peev, cov neeg yuav khoom yuav tsum tau txheeb xyuas qhov sib txawv ntawm lub cev ntawm CD thiab kab / qhov chaw, qhia lawv ncaj qha rau cov khoom muag khoom tshwj xeeb, thiab ntsuas qhov kev lag luam kho qhov muag -offs.
2. LUB CRUCIAL DISTINCTION: ISOLATED CD VS. DENSE LINE/SPACE
Kev nkag siab yog vim li cas kho qhov muag ncaj qha-sau cov cuab yeej tshaj tawm cov txiaj ntsig sib txawv rau cov CD sib cais thiab cov kab ntom ntom / qhov chaw yuav tsum tau tshuaj xyuas lub physics ntawm kev tsim duab saum huab cua, qhov cuam tshuam ntawm optical sib thooj, thiab photoresist chemistry.
2.1 Qhov Tseem Ceeb Dimension (CD) yog dab tsi?
Nyob rau hauv semiconductor metrology, Critical Dimension yog hais txog qhov tseem ceeb tshaj plaws nyob rau hauv geometric caij nyob rau hauv ib qho kev sib txuas los yog MEMS ntaus ntawv. Feem ntau, CD hais txog ib qho kev sib cais:
• Ib tus ntiv tes sib cais ntawm Gallium Nitride (GaN) High-Electron-Mobility Transistor (HEMT).
• Ib qho kev sib cais kho qhov muag waveguide ridge nyob rau hauv ib tug integrated photonics circuits.
• Ib qho kev sib txuas sib txuas qhib lossis pob khawm cantilever hauv MEMS sensor.
Thaum nthuav tawm cov kab sib cais hauv qhov tsis muaj qhov npog ntsej muag, lub tshuab kho qhov muag tsom rau lub zog cuam tshuam rau qhov nqaim ntawm photoresist. Vim tias tsis muaj cov qauv nthuav tawm nyob ib sab hauv ib puag ncig tam sim ntawd, lub teeb tawg tawg tawg (sab txawv txav - lobes) dissipates harmlessly rau hauv qhov tsaus ntuj. Los ntawm kev ntsuas qhov tseeb ntawm cov koob tshuaj, cov naj npawb aperture, thiab lub sijhawm txhim kho, cov txheej txheem niaj hnub ncaj qha -sau tuaj yeem ua tiav cov txiaj ntsig zoo ntawm CD cais tawm - feem ntau mus txog 0.4 μm.
2.2 Yam tsawg kawg nkaus Kab/Space (L/S) yog dab tsi?
Nyob rau hauv sib piv, Yam tsawg kawg kab / qhov chaw yog hais txog ib tug ntom array ntawm alternating kab thiab qhov chaw, feem ntau configured nyob rau hauv ib tug 1: 1 pitch ratio (qhov sib npaug kab dav thiab trench sib txawv):
• Optical diffraction gratings, photonic crystals, thiab faib tawm tswv yim (DFB) tsom iav laser.
• High-density Interdigitated Electrode (IDE) biosensors thiab microelectrode arrays (MEA).
• Nthuav metallization pitch thiab tsheb npav routing nyob rau hauv advanced ntim.
Thaum lub tshuab kho qhov muag ua haujlwm ntau qhov sib txuas sib txuas los yog hloov kho micromirror pixels, lub teeb nthwv dej los ntawm cov kab uas nyob ib sab sib tshooj vim qhov pom kev sib txawv. Qhov no optical crosstalk tsim ib qho kev nce siab "tom qab siv" hauv qhov tsis pom kev ntawm cov kab.
Qhov sib txawv ntawm qhov pom ntawm daim duab saum toj saud yog txhais los ntawm Modulation Transfer Function (MTF):
Contrast=(I_max - I_min) / (I_max + I_min)
Raws li lub suab nruj, I_min (qhov kev siv hauv qhov tsaus ntuj) nce siab tshaj xoom vim yog qhov cuam tshuam ntawm qhov muag pom. Yog hais tias cov duab saum toj kawg nkaus hauv nruab nrab poob qis hauv qab qhov sib txawv ntawm cov tshuaj photoresist, lub photoresist tsis tuaj yeem paub qhov txawv ntawm cov kab uas raug thiab cov trench tsis pom. Qhov no ua rau classic cleanroom defects:
• Tiv Thaiv Kev Sib Txuas: Kev txhim kho tsis tiav uas cov kab uas nyob ib sab sib koom ua ke.
• Resist Scumming: Residual photoresist scum seem nyob rau hauv trench pem teb.
• Pattern Collapse: Mechanical tsis ua hauj lwm ntawm siab -yam- ratio ntom tiv taus kab thaum hnyav qhuav.
2.3 Vim li cas MLM 200 Ua tiav 0.4 μm CD tab sis 0.8 μm Kab / Qhov Chaw?
Ib qho piv txwv tseem ceeb ntawm kev lag luam lub cev no- tawm yog pom hauv Nice-Tech's MLM 200 qauv:
• Critical Dimension (Ib leeg): 0.4 μm
• Yam tsawg kawg nkaus kab/qhov chaw (Dense 1:1): 0.8 μm
Qhov parameter profile no muaj nyob rau hauv siab -precision ncaj- sau lithography. MLM 200 siv lub tshuab xa tawm tsom rau qhov muag uas muaj peev xwm sau ntawv ultra-zoo cais tawm mus txog 0.4 μm. Txawm li cas los xij, thaum muab cov kab sab -los ntawm- sab hauv qhov ntom ntom 1: 1 daim phiaj, qhov sib thooj ntawm qhov sib thooj ntawm qhov sib thooj yuav tsum muaj qhov sib nrug tsawg kawg nkaus ntawm 0.8 μm kom ntseeg tau tias qhov sib txawv ntawm qhov muag txaus (I_max piv rau I_min) kom tshem tawm cov trench kom tsis muaj kev sib txuas.
Rau cov khoom siv hluav taws xob RF tsim qauv qauv 0.4 μm GaN HEMT rooj vag nrog qhov dav dav -kho qhov sib nrug (2 μm txog 5 μm), MLM 200 yog qhov zoo. Txawm li cas los xij, yog tias tib tus tsim tawm sim luam tawm 0.4 μm / 0.4 μm ntom grating (0.8 μm tag nrho lub suab), qhov sib txawv ntawm qhov muag yuav degrade, ua rau tiv thaiv bridging tshwj tsis yog ib qho kev kho qhov muag tshwj xeeb tshwj xeeb rau ntom 1: 1 arrays raug xaiv.
2.4 Vim li cas MLM 500 Ua tiav 0.5 μm CD thiab Symmetrical 0.5 μm Kab/Space?
Hauv qhov sib piv, Nice-Tech's MLM 500 nta:
• Critical Dimension (Ib leeg): 0.5 μm
• Yam tsawg kawg nkaus kab/qhov chaw (Dense 1:1): 0.5 μm
MLM 500 suav nrog qhov siab -tus lej- aperture (siab-NA) qhov projection system ua ke nrog kev hloov kho lub teeb ci siab tshaj plaws thiab sub-pixel ntug them nyiaj. Qhov kev teeb tsa kho qhov muag no tswj hwm qhov sib txawv MTF siab txawm tias nyob rau ntawm qhov sib txawv ntawm qhov muag nruj, tso cai rau lub teeb siv kom poob qis hauv qhov chaw tsaus ntuj. Raws li qhov tshwm sim, ntom 1: 1 kab thiab qhov chaw tuaj yeem daws qhov sib npaug mus rau 0.5 μm yam tsis muaj kev cuam tshuam lossis kev sib txuas.
3. TECHNICAL SELECTION MATRIX: NICE-TECH MASKLESS LITHOGRAPHY LINEUP
Zoo-Tech tsim plaub lub ntsej muag tsis muaj ntsej muag lithography qauv, txhua tus engineered rau cov chaw tsim khoom tshwj xeeb thiab cov duab geometric. Cov lus hauv qab no qhia txog cov txheej txheem technical specifications:
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Qauv CD (Ib leeg) Min Kab/Space (1: 1) Qhov Tseem Ceeb Optical Domain Cleanroom Focus
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MLM 100 0.8 μm 1.0 μm Balanced High -DOF Direct Sau General R&D, MEMS, Microfluidics
MLM 200 0.4 μm 0.8 μm Fine-Spot Sub-Micron Delivery GaN/GaAs RF, Fais Fab HEMT, Waveguides
MLM 400 1.0μm 2.0 μm Dav -Field High-Throughput Cav Thick Resist, Ntim RDL, Fais Fab ICs
MLM 500 0.5 μm 0.5 μm Siab-NA Symmetric Contrast Cav Dense Optical Gratings, MEA, Crystals
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3.1 Zoo-Tech MLM 100: Lub Tsev Ua Haujlwm Huv Huv (CD: 0.8 μm|L/S: 1.0 μm)
MLM 100 yog tsim los ua cov pob txha muaj zog ntau yam rau ntau -cov neeg siv hauv tsev kawm qib siab nanofabrication cov chaw, muaj R&D lub chaw soj nstuam, thiab MEMS cov qauv qauv.
• Geometric Profile: Txhim khu kev daws teeb meem cais tawm mus txog 0.8 μm thiab cov kab ntev ntev mus txog 1.0 μm.
• Optical Characteristics: Ua haujlwm nrog tus lej optical aperture optimized rau cov txheej txheem dav dav. Nws muab qhov dav dav ntawm Kev Pom Zoo (DOF feem ntau> 5 μm mus rau 10 μm nyob ntawm qhov tiv thaiv tuab), ua rau nws zam txim rau substrate nto topography thiab me ntsis wafer hneev.
• Txheej txheem Compatibility: Tau tshaj tus qauv zoo i- kab / h- kab novolac photoresists (xws li AZ 1500, AZ 4562, Shipley S1800 series) thiab tsis zoo resists (SU-8, KMPR).
• Cov ntawv thov: Microfluidic flow channels, biomedical microchips, cantilever accelerometers, acoustic resonators, thiab standard wafer-level test structures.
• Kev Pom Zoo: Xaiv MLM 100 yog tias koj chav huv huv ua haujlwm ntau yam haujlwm, ua haujlwm nruab nrab ntawm cov thicknesses (1.5 μm txog 5 μm), thiab tsis xav tau sub-ib nrab-micron feature qhov ntau thiab tsawg.
3.2 Zoo-Tech MLM 200: Precision rau Sub-Micron Devices (CD: 0.4 μm|L/S: 0.8 μm)
MLM 200 yog lub hom phiaj- ua rau cov chav huv huv uas tsim tau siab - zaus, cov khoom siv hluav taws xob sib txuas, thiab cov khoom siv optoelectronic precision qhov twg sub-micron cais cov yam ntxwv yog qhov tseem ceeb.
• Geometric Profile: Ua tiav qhov tseem ceeb ntawm 0.4 μm rau cov kab sib cais, rooj vag, thiab kev sib cuag strips, nrog cov kab ntom ntom / qhov chaw muaj peev xwm ntawm 0.8 μm.
• Cov yam ntxwv kho qhov muag: ntiav cov kab teeb tshwj xeeb- tsim kho qhov muag thiab tswj cov tshuaj tiv thaiv kom pom qhov sib txawv ntawm cov qauv sib cais.
• Txheej txheem Compatibility: Ua tau tshwj xeeb nrog nyias, siab - sib piv photoresists (0.5 μm mus rau 1.2 μm thickness) xws li AZ 6112, AZ 703, los yog SPR 700. Yuav tsum muaj kev tswj kom nruj dua li MLM 100.
• Cov ntawv thov: T- rooj vag thiab nceb rooj vag qauv rau Gallium Nitride (GaN) thiab Gallium Arsenide (GaAs) HEMT cov cuab yeej, siab- ceev photodetectors, optical waveguide routing, thiab sub-micron cais hlau nqa- tawm qauv.
• Cov Lus Pom Zoo: Xaiv MLM 200 yog tias koj cov txheej txheem yuav tsum tau tsim cov rooj vag tseem ceeb los yog kab ntawm 0.4 μm thiab 0.8 μm yam tsis tas yuav tsum muaj cov ntu ntu ntu hauv qab 0.8 μm.
3.3 Zoo-Tech MLM 400: Siab-Throughput & Thick-Resist Processing (CD: 1.0 μm|L/S: 2.0 μm)
MLM 400 yog tsim los rau cov chaw ua haujlwm tseem ceeb ntawm kev nthuav tawm, kev ua haujlwm loj - cheeb tsam, thiab kev sib raug zoo nrog ultra-thick photoresists.
• Geometric Profile: Configured rau 1.0 μm cais CD thiab 2.0 μm yam tsawg kawg nkaus kab/qhov chaw.
• Cov yam ntxwv kho qhov muag: Siv qhov loj dua qhov pom qhov pom thiab qhov siab - qhov tob- ntawm - tsom teeb pom kev tsheb ciav hlau. Qhov txuas ntxiv DOF (feem ntau> 20 μm mus rau 50 μm hauv tuab resists) ua kom lub teeb nkag mus tob los ntawm cov yeeb yaj kiab tuab yam tsis muaj kev cuam tshuam cov kaum sab xis.
• Cov txiaj ntsig zoo tshaj plaws: Vim tias txhua qhov kev kho qhov muag npog thaj tsam nthuav dav, lub sijhawm sau ntawv wafer tau nrawm dua li ntawm cov cuab yeej daws teeb meem zoo. Kev nthuav tawm tag nrho 100 mm lossis 150 mm wafer ntawm MLM 400 tuaj yeem ua tiav ib feem ntawm lub sijhawm xav tau los ntawm sub-micron systems.
• Txheej txheem Compatibility: Zoo tagnrho rau tuab - zaj duab xis photoresists (10 μm rau 100 μm SU-8, AZ 4562, AZ 9260, polymide, BCB).
• Cov Ntawv Thov: Kev ntim khoom siab tshaj Redistribution Layers (RDL), wafer-theem nti ntim ntim (WLCSP), siab-tam sim no lub zog semiconductor busbars, microfluidic master pwm, tuab electroplating pwm, thiab bulk micromachined MEMS.
• Kev Pom Zoo: Xaiv MLM 400 yog tias koj cov yam ntxwv siab dua lossis sib npaug ntawm 1.0 μm, koj cov txheej txheem siv cov txheej txheem tuab tuab, lossis siab wafer throughput yog koj qhov tseem ceeb ua lag luam.
3.4 Zoo-Tech MLM 500: Symmetrical High-Density Resolution (CD: 0.5 μm|L/S: 0.5 μm)
The MLM 500 is Nice-Tech's flagship system for demanding micro-optical, photonic, and dense periodic sensor fabrication.
• Geometric Profile: Muab sib npaug 0.5 μm cais CD nrog rau 0.5 μm ntom 1: 1 kab / qhov chaw suab (1.0 μm tag nrho grating suab).
• Cov yam ntxwv kho qhov muag: Ua ke siab -NA projection optics nrog qib siab digital micromirror modulation thiab sub-pixel edge interpolation. Qhov no system suppresses sab diffraction -lobes thiab tiv thaiv kom txhob muaj teeb meem nyob rau hauv nqaim trench.
• Txheej txheem Compatibility: Yuav tsum tau nruj cleanroom kub tswj (± 0.5 degree) thiab nyias, siab -contrast resists (0.3 μm mus rau 0.8 μm).
• Cov ntawv thov ib txwm: Sub-micron diffraction gratings, optical metamaterials, photonic crystal waveguides, ntom ntom ntom acoustic yoj (SAW) transducers, interdigitated biosensors, thiab microelectrode arrays (MEA).
• Procurement Recommendation: Choose the MLM 500 if your device architecture relies heavily on dense, closely packed periodic structures at the half-micron scale.
4. DAIM NTAWV QHIA TXOG KEV UA HAUJ LWM-OFFS: SPEED, DOF, thiab ALIGNMENT
Thaum xaiv ntawm MLM 100, 200, 400, thiab 500, engineers kuj yuav tsum xav txog peb qhov tseem ceeb thib ob uas cuam tshuam ncaj qha rau kev ua haujlwm huv huv txhua hnub:
4.1 Kev Tshaj Tawm Tshaj Tawm (Ntev Tawm) vs
Hauv ib qho ncaj qha -sau lithography cuab yeej, muaj kev lag luam lub cev tseem ceeb- tawm ntawm qhov nrawm nrawm thiab kho qhov muag:
• Kev daws teeb meem zoo (raws li hauv MLM 200 thiab MLM 500) yuav tsum muaj qhov xav tau me me pixel loj thiab qhov loj dua, txhais tau tias tsawg dua square millimeters ntawm cov wafer raug nthuav tawm ib ob rau lub teeb pom kev zoo.
• Soj ntsuam daws teeb meem (raws li hauv MLM 400) siv cov phiaj xwm loj dua, npog thaj chaw raug loj dua rau ib lub flash thiab ua rau muaj kev cuam tshuam ntau ntxiv.
Txoj cai ntawm Thumb: Tsis txhob yuav ntau qhov kev daws teeb meem ntau dua li koj lub cuab yeej cuab tam xav tau. Yog tias koj txoj kab hlau nruj tshaj plaws yog 2.5 μm, xaiv lub cuab yeej 0.4 μm yuav tsis tsim nyog ncua sij hawm cuam tshuam los ntawm feeb mus rau ib teev ib wafer.
4.2 Qhov tob ntawm kev tsom xam (DOF) thiab tiv taus Thickness
Lub Rayleigh qhov tob ntawm qhov sib npaug ntawm kev tsom xam tswj hwm txhua qhov projection systems:
DOF=k₂ × λ / (NA)²
Daim ntawv ceeb toom tias DOF txo qis nrog lub square ntawm Numerical Aperture. Lub siab -NA lens tsim nyog rau sub-ib nrab-micron daws teeb meem yields ib tug nqaim qhov tob ntawm tsom (feem ntau <1.5 μm). Yog hais tias ib tug engineer sim tig 15 μm tuab SU-8 tiv thaiv ntawm lub cuab yeej high-NA, sab saum toj ntawm qhov kev tawm tsam yuav ua kom pom tseeb thaum lub hauv qab ua rau qhov muag plooj, ua rau undercut lossis sloped sidewalls.
• For thick resists (>10 μm): MLM 400 muab qhov tsim nyog qhov tob ntawm kev tsom xam.
• Rau cov qauv resists (1.5 μm mus rau 5 μm): MLM 100 muab qhov kev pom zoo ntawm kev daws teeb meem thiab DOF.
• Rau ultra-thin resists (< 1.0 μm): The MLM 200 and MLM 500 excel at fine line delineation.
4.3 Layer-rau-Txheej Txheej & Kev Tshaj Tawm Tshaj Tawm
Ib lub cuab yeej lithography tsis tshua muaj kev sib cais; nws qauv txheej txheej nyob rau sab saum toj ntawm yav tas los etched los yog metallized lug.
• Topside Optical Alignment: Tag nrho cov zoo -Tech MLM qauv feature siab -kev daws teeb meem tshuab- lub zeem muag lub koob yees duab muaj peev xwm ntawm tsis siv neeg fiducial cim paub, ua tiav txheej - mus rau - txheej overlay raug feem ntau nyob rau hauv ± 0.5 μm mus rau ± 0.2 m.
• Backside Alignment: Qhov tseem ceeb rau MEMS los ntawm -wafer kab noj hniav, lub siab sensors, thiab lub zog ntaus ntawv vias. Nug txog kev sib kis infrared (IR) lossis hauv qab - sab kho qhov muag lub koob yees duab configurations yog tias koj cov txheej txheem yuav tsum tau ob npaug - rau npe rau sab.
4.4 Substrate Versatility thiab Maskless Advantages
Tsis zoo li kev sib cuag tsis sib haum los yog txo cov kauj ruam uas yuav tsum tau ua qauv, wafer-pav substrates, Zoo-Tech maskless systems muab universal substrate compatibility:
• Substrate Sizes: Tag nrho cov wafers (2-nti, 4-nti, 6-nti, 8-nti, thiab 12-nti) nrog rau cov khoom tawg tsis tu ncua (txog 5 hli × 5 hli).
• Cov khoom siv substrate: Standard silicon, pob tshab fused silica, quartz, iav, gallium nitride (GaN), silicon carbide (SiC), gallium arsenide (GaAs), lithium niobate, thiab hloov tau yooj yim polymer substrates.
• Dynamic Autofocus: Tiag -lub sij hawm kho qhov muag nrhiav qhov chaw cia li them nyiaj rau lub substrate hneev nti thiab wedge yuam kev, kom ntseeg tau ib qho kev tsom xam nyob rau hauv warped compound semiconductor wafers.
5. SAMPLE WAFER TESTING & SEM METROLOGY VERIFICATION
Ua ntej ua tiav kev yuav khoom peev, cov neeg yuav khoom yuav tsum tsis txhob cia siab rau cov ntawv tshaj tawm tshwj xeeb. Cleanroom tej yam kev mob, tiv thaiv formulations, thiab developer chemistry sib txawv ntawm cov chaw.
Nice-Tech tau txhawb kom cov neeg siv khoom yav tom ntej los ua Tus Qauv Wafer Exposure Testing ua ntej tshaj tawm daim ntawv xaj khoom. Cov txheej txheem pov thawj yuav tsum ntsuas tsib lub ntsiab lus ntsuas ntsuas uas siv Scanning Electron Microscopy (SEM):
1. Qhov tseem ceeb Dimension Uniformity (CDU 3σ): Ntsuas lub hom phiaj CD hla qhov tsawg kawg nkaus ntawm 20 cov ntsiab lus hla lub wafer (center, nruab nrab, ntug) kom ntseeg tau tias qhov sib txawv ntawm qhov sib txawv yog li ntawm ± 5%.
2. Dense Line/Space Pitch Clearance: Verify through cross-sectional SEM that dense 1:1 trenches are free of scumming, micro-bridging, or standing-wave footing.
3. Sidewall Angle: Paub meej tias photoresist sidewall profiles tshaj 85℃(los yog phim koj cov txheej txheem yuav tsum tau, xws li retrograde undercut profiles rau nqa-tawm).
4. Kab ntug Roughness (LER) & Kab Dav Roughness (LWR): Tshawb xyuas siab - magnification saum- nqes SEM cov duab los txheeb xyuas cov kab npoo npoo, qhov tseem ceeb rau kev poob photonic waveguide poob thiab RF rooj vag kev ua tau zoo.
5. Overlay Accuracy: Ua qauv kuaj vernier scale hla ib qho ua ntej - txheej txheem uas twb muaj lawm los xyuas kom meej qhov kev sau npe rov ua dua thoob plaws thaj tsam substrate.
6. Ua ntej- Daim Ntawv Qhia Txog Kev Muag Khoom: YUAV UA LI CAS YUAV TSUM PAUB ua ntej thov daim ntawv QUOTATION
Txhawm rau kom tau txais cov lus hais raug, tsim nyog thiab cov khoom siv teeb tsa los ntawm Nice-Tech, kev yuav khoom thiab cov txheej txheem engineering pab pawg yuav tsum npaj cov npe hauv qab no:
[1]. Lub hom phiaj substrate Specification:
• Khoom siv: Silicon, Quartz, Sapphire, GaN, SiC, iav, los yog lwm yam.
• Hom ntawv: Wafer txoj kab uas hla (piv txwv li, 4-nti, 6-nti, 8-nti) los yog me me cleaved chips (piv txwv li, 10 mm × 10 mm).
• Cov Txheej Txheem Nto: Polished, metallized, pob tshab, lossis hneev taw (xws li hneev nti hauv micrometers).
[2]. Feature Geometry Requirements:
• Yam tsawg kawg nkaus qhov tseem ceeb (kab cais, rooj vag, lossis qhov sib tiv tauj).
• Yam tsawg kawg nkaus kab/chaw (dense array pitch yuav tsum tau).
• Cov txheej txheem tseem ceeb (piv txwv li, phiaj CD ± 5%).
[3]. Txheej txheem Photoresist:
• Hom Photoresist: Zoo, tsis zoo, lossis dual-tone.
• Photoresist lub npe: (eg, AZ 5214E, SU-8 2010, Shipley S1813).
• Target film thickness: (piv txwv li, 0.8 μm, 2.5 μm, 25 μm).
[4]. Alignment & Layering Requirements:
• Ib txheej raug lossis ntau- txheej sau npe.
• Txoj kev sib tw: Sab saum toj optical lossis backside infrared (IR).
• Target overlay raug: (piv txwv li, <0.5 μm).
[5]. Peev Xwm & Ntau Lawm:
• Xav tau lub ntim wafer: (piv txwv li, 5 wafers/lub lim tiam rau R&D vs . 50 wafers/hnub rau kev tsim tawm).
• Automation yuav tsum tau: Manual substrate loading los yog semi-automatic cassette tuav.
[6]. Layout Data Format:
• Cov ntaub ntawv tsim qauv npaj tau: GDSII, OASIS, DXF, lossis CIF.
7. CEEB TOOM & Cov kauj ruam tom ntej: PARTNERING nrog zoo-TECH
Xaiv txoj cai maskless lithography system yuav tsum ntsuas qhov sib cais CD, ntom kab / qhov chaw suab, qhov tob ntawm kev tsom xam, tiv thaiv thickness, thiab ntau lawm ceev.
• Yog tias koj chav huv huv xav tau txhua yam - nyob ib puag ncig R&D tus neeg ua haujlwm, MLM 100 muab kev sib tw tsis sib xws thiab cov txheej txheem latitude.
• Yog tias koj lub hom phiaj yog sub-micron cais cov yam ntxwv rau RF thiab hluav taws xob hluav taws xob, MLM 200 muab 0.4 μm CD precision.
• Yog tias koj lub chaw ua haujlwm tuav cov tuab tuab, ntim siab heev, lossis xav tau ntau tshaj plaws, MLM 400 yog tus qauv kev lag luam.
• Yog tias koj daim ntawv thov xav tau nruj 0.5 μm ntom 1: 1 ntu ntu, gratings, lossis cov qauv duab photonic, MLM 500 muab qhov zoo tshaj plaws symmetrical optical zoo.
Npaj los ntsuas koj cov qauv tsim ntawm Nice -Tech Maskless Lithography System?
Mus ntsib Nice-Tech's official product page los tshawb xyuas cov ncauj lus kom ntxaws txog tshuab:
Hu rau peb Pab Pawg Senior Applications Engineering ntawm dmjsemi.com kom xa koj cov qauv CAD/GDSII rau kev kuaj dawb wafer raug thiab SEM metrology tshuaj xyuas. Peb yuav teeb tsa cov khoom siv tswv yim tsim tshwj xeeb rau koj chav huv huv cov kev qhia thiab kev siv nyiaj txiag.
