2. Vim li cas lub Semiconductor Kev Lag Luam Xav Tau Kev Purity Tsis Muaj

Yuav kom nkag siab txog qhov tsim nyog ntawm ultra-siab purity, ib tug yuav tsum to taub qhov ntsuas ntawm niaj hnub semiconductor manufacturing. Niaj hnub no cov chips siab tshaj plaws muaj cov transistors uas tsuas yog ob peb nanometers dav. Txhawm rau muab qhov no rau hauv qhov kev xav, ib txoj hlua ntawm tib neeg cov plaub hau yog li 80,000 txog 100,000 nanometers tuab.

Thaum koj tab tom tsim cov qauv ntawm qib atomic, ib qho molecule ntawm cov pa oxygen lossis microscopic tee dej tuaj yeem ua rau muaj kev puas tsuaj loj.

• Oxidation: Cov pa oxygen tsis xav tau tuaj yeem cuam tshuam nrog cov qauv silicon ilv, hloov lawv cov khoom hluav taws xob.

• Particulate Contamination: Txawm hais tias ib qho tsis ncaj ncees lawm tuaj yeem ua rau luv luv ntawm nanoscale transistor, ua rau tag nrho cov seem ntawm microchip tsis muaj txiaj ntsig.

• Yield txo: Hauv kev ua haujlwm ntau txhiab tus wafers hauv ib lub lis piam, qhov kev poob qis me ntsis vim muaj cov pa paug tuaj yeem txhais tau rau kaum lab nyiaj daus las hauv cov nyiaj tau los poob.

Yog li ntawd, tus semiconductor kua argon nkag mus rau hauv chav huv huv ib puag ncig yuav tsum yog qhov tseem ceeb tsis muaj cov tshuaj tiv thaiv kab mob.

3. Core Applications ntawm Semiconductor Liquid Argon

Txoj kev taug kev ntawm silicon wafer los ntawm cov khoom siv raw mus rau microprocessor tiav siv ntau pua cov kauj ruam nyuaj. Ultra-high purity kua argon yog sib sib zog nqus mus rau hauv ob peb lub sij hawm tseem ceeb tshaj plaws ntawm cov lus no.

3.1. Silicon Crystal Pulling (Cov txheej txheem Czochralski)

Lub hauv paus ntawm txhua lub microchip yog silicon wafer. Cov wafers no yog txiav los ntawm loj, ib leeg-crystal silicon ingots zus siv Czochralski (CZ) txoj kev. Nyob rau hauv cov txheej txheem no, purified polycrystalline silicon yog yaj nyob rau hauv ib tug quartz crucible ntawm kub tshaj 1,400 ° C. Lub noob siv lead ua tau qhia thiab maj mam rub mus rau sab saud, kos ib lub cylindrical zoo meej crystal tawm ntawm cov yaj.

Thaum lub sij hawm no thermal txheej txheem, cov molten silicon yog heev reactive. Yog hais tias nws los rau hauv kev sib cuag nrog oxygen los yog nitrogen, nws yuav tsim silicon dioxide los yog silicon nitride, rhuav tshem cov ntshiab crystalline qauv. Ntawm no, argon ua raws li qhov kawg tiv thaiv. Lub cub tawg tsis tu ncua purged nrog vaporized Ultra-siab purity kua argon los tsim ib qho chaw inert kiag li. Vim hais tias argon hnyav dua li huab cua, nws tsim ib daim pam tiv thaiv tshaj lub molten silicon, kom ntseeg tau tias qhov tshwm sim ingot yog structurally zoo meej thiab tsis muaj microscopic defects.

3.2. Plasma Etching thiab Deposition

Niaj hnub nimno chips yog tsim nyob rau hauv 3D txheej. Qhov no suav nrog kev tso cov txheej txheem microscopic ntawm cov khoom siv hluav taws xob lossis cov ntaub ntawv insulating mus rau wafer thiab tom qab ntawd tshem tawm qhov tshwj xeeb los tsim cov circuits.

• Sputtering (Lub cev Vapor Deposition - PVD): Argon yog cov roj tseem ceeb siv hauv sputtering. Nyob rau hauv lub tshuab nqus tsev chamber, argon roj yog ionized rau hauv lub plasma. Cov argon ions zoo li no tau nrawm rau hauv cov khoom siv (xws li tooj liab lossis titanium). Lub sheer kinetic quab yuam ntawm hnyav argon ions knocks atoms tawm ntawm lub hom phiaj, uas ces tso nyiaj sib npaug mus rau silicon wafer. Argon raug xaiv vim nws cov atomic loj yog zoo kawg nkaus haum rau dislodge hlau atoms zoo yam tsis muaj tshuaj reacting nrog lawv.

• Deep Reactive Ion Etching (DRIE): Thaum cov tuam txhab xav tau kev sib sib zog nqus, cov trenches zoo heev rau hauv silicon - qhov tseem ceeb rau cov chips nco thiab ntim siab heev - argon feem ntau sib xyaw nrog cov pa roj reactive kom stabilize cov ntshav thiab pab lub cev foob pob wafer nto, cheb tawm etched byproducts.

3.3. DUV thiab EUV Lithography (Excimer Lasers)

Lithography yog cov txheej txheem ntawm kev siv lub teeb los luam cov qauv hauv Circuit Court rau ntawm lub wafer. Raws li circuits tau shrunk, manufacturers yuav tsum tau siv lub teeb nrog luv luv wavelengths. Qhov no yog qhov twg kua argon electronics cuam tshuam nrog optical physics.

Sib sib zog nqus Ultraviolet (DUV) lithography tso siab rau ArF (Argon Fluoride) excimer lasers. Cov lasers no siv cov tshuaj sib xyaw ua ke ntawm argon, fluorine, thiab neon gases los tsim lub teeb pom kev zoo nrog lub wavelength ntawm 193 nanometers. Lub purity ntawm argon siv nyob rau hauv cov kab noj hniav laser no incredibly nruj. Txhua yam impurities tuaj yeem degrade lub laser optics, txo qhov kev siv ntawm lub teeb, thiab ua rau cov txheej txheem lithography luam tawm qhov muag plooj lossis tsis zoo.

Txawm hais tias nyob rau hauv cov tshiab Extreme Ultraviolet (EUV) lithography systems, argon plays lub luag hauj lwm tseem ceeb raws li ib tug purge gas kom lub ilv, heev complex daim iav systems tsis muaj molecular paug.

3.4. Annealing thiab Thermal processing

Tom qab dopants (xws li boron los yog phosphorus) tau cog rau hauv silicon los hloov nws cov khoom hluav taws xob, lub wafer yuav tsum tau muab rhaub kom kub kub los kho qhov kev puas tsuaj rau cov siv lead ua lattice thiab qhib cov dopants. Cov txheej txheem no, hu ua annealing, yuav tsum tshwm sim nyob rau hauv ib tug nruj tswj hwm, tsis muaj oxygen ib puag ncig tiv thaiv lub wafer nto los ntawm oxidizing. Kev nruam nruam ntawm ultra-ntshiab argon muab qhov kev nyab xeeb thermal ib puag ncig.

4. Liquid Argon Electronics: Fais fab rau tiam tom ntej ntawm Tech

Lub sij hawm kua argon electronics broadly encompasses lub ecosystem ntawm high-tech pab kiag li lawm thiab manufacturing txheej txheem uas nyob ntawm seb cov khoom siv cryogenic. Raws li peb txav mus rau hauv ib lub sijhawm uas tau tswj hwm los ntawm Artificial Intelligence (AI), Is Taws Nem ntawm Yam (IoT), thiab cov tsheb tsis muaj zog, qhov kev thov rau cov chips muaj zog dua, lub zog txuag tau nce siab.

1. AI Accelerators thiab GPUs: Qhov loj graphical processing units (GPUs) yuav tsum tau cob qhia AI qauv zoo li cov qauv lus loj yuav tsum tau loj heev, tsis muaj qhov tsis xws luag silicon tuag. Qhov loj dua qhov tuag, qhov siab dua qhov uas ib qho impurity tuaj yeem rhuav tshem tag nrho cov nti. Qhov chaw tsis zoo uas muab los ntawm UHP argon yog tsis sib tham ntawm no.

2. Quantum Computing: Raws li cov kws tshawb fawb tsim quantum computers, cov khoom siv superconducting siv los tsim qubits yuav tsum tau tsim ib puag ncig nrog zero paug paug. Argon purging yog qhov tseem ceeb hauv kev npaj cryogenic thiab tsim cov txheej txheem tom ntej no.

3. Lub zog Electronics: Cov tsheb hluav taws xob cia siab rau Silicon Carbide (SiC) thiab Gallium Nitride (GaN) fais fab chips. Kev loj hlob ntawm cov khoom siv hluav taws xob semiconductor yuav tsum muaj qhov kub thiab txias dua li cov qauv silicon, ua rau cov khoom tsis muaj zog ntawm argon tseem ceeb dua.

5. Qhov tseem ceeb ntawm cov khoom siv thiab cov khoom siv

Kev tsim cov purity ultra-high purity kua argon yog ib qho zoo kawg nkaus ntawm kev siv tshuaj niaj hnub no. Nws yog feem ntau muab rho tawm los ntawm huab cua siv cryogenic fractional distillation hauv huab cua sib cais loj (ASUs). Txawm li cas los xij, kev tsim cov roj tsuas yog ib nrab ntawm kev sib ntaus sib tua; xa nws mus rau lub cuab yeej semiconductor yam tsis poob purity yog qhov nyuaj sib npaug.

Kev Tiv Thaiv Kab Mob Thaum Ntxov

Txhua lub valve, yeeb nkab, thiab cia tank uas kov lub Ultra-siab purity kua argon yuav tsum tau tshwj xeeb electropolished thiab pre-purged. Yog hais tias lub tsheb thauj khoom muaj txawm tias lub microscopic leak, atmospheric siab yuav tsis cia argon tawm; Qhov kub thiab txias cryogenic tuaj yeem kos cov impurities atmospheric hauv, ruining tag nrho batch.

Nyob rau theem fab, cov kua argon yog khaws cia rau hauv lub tshuab nqus tsev loj-insulated bulk tanks. Tom qab ntawd nws tau dhau los ntawm cov vaporizers tshwj xeeb thiab cov khoom siv roj purifiers txoj cai ua ntej nkag mus rau hauv chav huv.

Txhawm rau tswj kev tsim khoom tas mus li, tsis muaj kev cuam tshuam, cov tuam txhab lag luam semiconductor yuav tsum koom tes nrog cov neeg xa khoom siv roj saum toj kawg nkaus uas tau ua tiav cov saw hlau nruj no. Rau lub xeev-of-the-art cov chaw nrhiav kom muaj kev ruaj ntseg txuas ntxiv, txhim khu kev qha ntawm cov khoom siv tseem ceeb no nrog kev lees paub purity metrics, tshawb nrhiav cov kev lag luam tshwj xeeb los ntawm cov chaw muab kev ntseeg siab xws li Huazhong Gas xyuas kom meej tias cov qauv ua tau raws li cov qauv thiab kev tsim khoom lag luam raug tshem tawm.

6. Kev txiav txim siab txog nyiaj txiag thiab ib puag ncig

Qhov ntim ntawm argon noj los ntawm niaj hnub gigafab yog staggering. Ib qho chaw tsim khoom loj semiconductor tuaj yeem haus tau kaum txhiab cubic meters ntawm ultra-ntshiab roj txhua txhua hnub.

Sustainability thiab Recycling

Vim tias argon yog cov roj zoo thiab tsis siv tshuaj lom neeg hauv cov txheej txheem semiconductor feem ntau (nws ua haujlwm feem ntau yog daim thaiv lub cev lossis cov ntshav nruab nrab), muaj kev loj hlob hauv kev lag luam rau argon rov qab thiab rov ua dua tshiab. Advanced fabs tau nce kev txhim kho ntawm qhov chaw rov ua haujlwm uas ntes cov argon tso tawm los ntawm siv lead ua rub rauv taws thiab sputtering chambers. Cov roj no yog tom qab ntawd rov ua kom huv hauv zos. Tsis tsuas yog qhov no txo ​​qis cov nqi kev ua haujlwm ntawm fab, tab sis nws kuj txo qis cov pa roj carbon hneev taw cuam tshuam nrog liquefying thiab thauj cov argon tshiab hla kev deb.

7. Lub neej yav tom ntej ntawm Argon hauv Advanced Node Manufacturing

Raws li kev lag luam semiconductor thawb mus rau 2nm, 14A (angstrom), thiab dhau mus, cov qauv ntawm transistors hloov pauv. Peb tab tom tsiv los ntawm FinFET mus rau Gate-All-All-Around (GAA) thiab nws thiaj li mus ntxiv FET (CFET) tsim.

Cov qauv 3D no xav tau atomic txheej deposition (ALD) thiab atomic txheej etching (ALE) - cov txheej txheem uas tswj cov silicon lus ib atom ib zaug. Hauv ALD thiab ALE, cov pulses tswj tau meej ntawm argon yog siv los ntxuav lub chamber tshuaj tiv thaiv ntawm cov tshuaj, kom ntseeg tau tias cov tshuaj tiv thaiv tsuas yog tshwm sim raws nraim qhov xav tau ntawm qhov chaw atomic.

Raws li precision nce, kev cia siab rau semiconductor kua argon yuav ua kom nruj. Cov kev cai purity tej zaum yuav tshaj li 6N cov qauv tam sim no, thawb mus rau hauv thaj tsam ntawm 7N (99.99999%) lossis siab dua, tsav tsheb ntxiv kev tsim kho tshiab hauv roj purification thiab kev ntsuas kev siv thev naus laus zis.

Tag

Nws yog ib qho yooj yim xav tsis thoob ntawm qhov ua tiav microprocessor - ib daim ntawm silicon uas muaj ntau lab tus microscopic keyboards muaj peev xwm ua tau ntau lab lab ntawm kev suav ib ob. Txawm li cas los xij, qhov tseem ceeb ntawm tib neeg engineering yog nyob ntawm qhov pom tsis pom uas tsim nws.

Ultra-siab purity kua argon tsis yog ib yam khoom xwb; Nws yog lub hauv paus ncej ntawm kev lag luam semiconductor. Los ntawm kev tiv thaiv lub molten yug ntawm silicon crystals los ua kom cov ntshav uas carves tawm nanometer-scale circuits, argon lav lub pristine ib puag ncig tsim nyog los ua kom Moore txoj cai ciaj sia. Raws li cov frontiers ntawm kua argon electronics nthuav dav los txhawb AI, quantum xam, thiab kev tswj hwm lub zog siab, qhov kev thov rau qhov no zoo kawg nkaus ntshiab, inert kua yuav ua rau lub zog tsav tom qab lub ntiaj teb kev vam meej.

FAQs

Q1: Vim li cas cov kua argon nyiam dua lwm cov roj inert xws li nitrogen lossis helium hauv qee cov txheej txheem semiconductor?

A: Thaum nitrogen yog pheej yig dua thiab dav siv los ua cov pa hluav taws xob dav dav, nws tsis yog inert tiag tiag ntawm qhov kub siab heev; nws tuaj yeem hnov ​​​​mob silicon los ua silicon nitride tsis xws luag. Helium yog inert tab sis heev lub teeb thiab kim. Argon hits "qhov chaw qab zib" - nws yog inert kiag li txawm nyob rau hauv huab cua kub, hnyav txaus kom zoo daim pam molten silicon, thiab muaj lub zoo meej atomic loj rau lub cev dislodge atoms thaum lub sij hawm cov txheej txheem plasma sputtering yam tsis ua rau cov tshuaj tsis haum tshuaj.

Q2: Yuav ua li cas yog ultra-high purity kua argon thauj mus rau semiconductor fabrication nroj tsuag (fabs) yam tsis muaj paug?

A: Kev tswj kom huv huv thaum caij tsheb thauj mus los yog qhov nyuaj rau kev thauj mus los. UHP kua argon yog thauj nyob rau hauv tshwj xeeb, siab insulated cryogenic tanker tsheb thauj khoom. Qhov chaw sab hauv ntawm cov tso tsheb hlau luam no, nrog rau tag nrho cov li qub thiab cov xaim xaim, yog electropolished rau daim iav tiav kom tsis txhob muaj cov pa tawm thiab cov khoom tawg. Ua ntej kev thauj khoom, tag nrho cov kab ke ua haujlwm nruj heev ntawm lub tshuab nqus tsev purging. Thaum tuaj txog ntawm fab, cov roj tau dhau los ntawm cov khoom siv purifiers uas siv cov thev naus laus zis thev naus laus zis txhawm rau tshem tawm txhua qhov ppt-theem (ib feem ntawm trillion) impurities ua ntej argon mus txog wafer.

Q3: Yuav tsum muaj pes tsawg purity npaum li cas rau "semiconductor kua argon," thiab nws ntsuas li cas?

A: Rau kev tsim khoom semiconductor siab heev, argon purity feem ntau yuav tsum yog tsawg kawg "6N" (99.9999% ntshiab), txawm tias qee qhov kev txiav txim siab xav tau 7N. Qhov no txhais tau hais tias impurities xws li oxygen, noo noo, thiab hydrocarbons raug txwv rau 1 feem ntawm ib lab (ppm) los yog ib feem ntawm ib billion (ppb). Cov minuscule impurity theem no yog ntsuas nyob rau hauv lub sijhawm tiag tiag ntawm fab siv cov khoom siv tshuaj ntsuam xyuas zoo heev, xws li Cavity Ring-Down Spectroscopy (CRDS) thiab Gas Chromatography nrog huab hwm coj spectrometry (GC-MS), ua kom muaj kev tswj xyuas zoo.