Ishishini le-semiconductor lisebenza ngokwemida ebonakalayo yoko kunokulinganiswa noko kwenziwayo. Iisekethe ezihlanganisiweyo zanamhlanje zine-transistors ezinobude besango obungaphantsi kwee-nanometers ezi-3 - ubukhulu apho i-athomu enye ye-silicon imele iqhezu elibalulekileyo lobukhulu beempawu ezibalulekileyo. Iinkqubo ze-lithography, izixhobo zokuhlola i-wafer, kunye nezixhobo ze-metrology ezidala kwaye ziqinisekisa ezi zakhiwo kufuneka zifezekise ukuchaneka kokubeka, ukwahlulwa kokungcangcazela, kunye nokuzinza kobukhulu obekubonakala kungenakwenzeka kwiminyaka engamashumi amabini eyadlulayo.
Sekunjalo ngaphakathi kwezi gumbi zizele bubuchwepheshe obungaqhelekanga, enye yezona zinto zibalulekileyo zokwakha yinto yakudala: igranite. Igranite emnyama elawulwa ngomatshini ochanekileyo, ilawula ubushushu yenza umqolo wesakhiwo seeplatifomu ezininzi zezixhobo ze-semiconductor eziphambili kwihlabathi. Ukuqonda isizathu - kwaye kutheni zonke iigranite zingalingani - kukhanyisa inkalo ebalulekileyo nehlala ingahoywa yobunjineli bezixhobo ze-semiconductor.
Indawo yeZixhobo zeSemiconductor: Oko Kufuneka Kusinde kwiSiseko
Inkqubo yokuvezwa kwe-photolithography (i-scanner okanye i-stepper) isebenza kwindawo ecocekileyo apho inani lamasuntswana emoyeni lilawulwa ukuya kumanqanaba eKlasi 1 okanye eKlasi 10 - oko kuthetha ukuba ngaphantsi kwe-1 okanye i-10 yamasuntswana nge-cubic foot yomoya kwi-0.5 μm okanye ngaphezulu. Izixhobo ngokwazo kufuneka zifikelele ekuphindaphindweni kokubekwa kwesigaba ngaphantsi kwe-1 nanometer, ukuchaneka kwe-overlay ngaphantsi kwe-2 nanometers, kunye nokujolisa okufanayo kwi-wafer ye-300 mm ngaphakathi kwe-nanometers ezimbalwa.
Isigaba se-wafer esifezekisa oku sihamba ngesantya esingaphezulu kwe-1 meter ngomzuzwana, sikhawulezisa kwaye sinciphise isantya ngamanani angaphezulu kwe-10 g, kwaye siphinda lo mjikelo amaxesha amaninzi ngeyure - yonke iyure, yonke imihla, kangangeminyaka. Isiseko segranite esixhasa esi sigaba akufuneki siguqe, sirhubuluze, okanye sijikeleze ngeendlela ezonakalisa umlinganiselo wendawo yesigaba. Kufuneka sihlale sizinze ngokwemilinganiselo kulo lonke uluhlu lokusebenza kobushushu besixhobo. Kwaye kufuneka senze konke oku ngokuthembekileyo ubomi benkqubo, obunokuba yiminyaka elishumi nangaphezulu.
Ezi azizomeko zokusebenza ezithambileyo. Zifuna kakhulu yonke into — kuquka nesiseko segranite esibonakala singasebenzi.
Ukuzihlukanisa nokuDambisa ukungcangcazela: Inzuzo ebonakalayo yeGranite
Izakhiwo ze-semiconductor zityala imali eninzi ekuzihlukaniseni ngokungcangcazela — ukusuka kwiziseko zesakhiwo (ezinokufakelwa kwii-arrays ze-pneumatic isolators) ukuya kwiinkqubo zokurhoxisa ukungcangcazela okusebenzayo kwinqanaba lezixhobo. Kodwa ezi nkqubo zinemida. Azinakususa konke ukungcangcazela, kwaye azinakuphendula ngoko nangoko kuzo zonke ii-frequency. Isiseko somatshini we-granite sinika isigaba sokugqibela sokuzihlukanisa ngokungcangcazela.
Ifiziksi yokudambisa ukungcangcazela ithanda izinto ezinobunzima obukhulu kunye nomthamo othile wokudambisa. Igranite emnyama enobunzima obuphezulu - enesakhiwo sayo esincinci sekristale se-quartz edibeneyo, i-feldspar, kunye neekristale ze-mica - ibonelela ngokudambisa okugqwesileyo kwangaphakathi kokungcangcazela koomatshini ngokudibanisa iziphumo zobunzima kunye nokungqubana kwemida yeenkozo. Ukungcangcazela okungena kwisiseko kumgangatho okanye ngamandla okusabela esiteji esishukumayo kuyafunxwa kwaye kuchitheke ngaphakathi kwegranite ngaphambi kokuba kuphinde kubuyele kwiinkqubo zokulinganisa ezinobuthathaka.
I-granite iphumelela kakhulu kunentsimbi kule nkalo, nangona intsimbi inamandla aphezulu okutyhala. Isizathu sikwisakhiwo se-crystalline: isakhiwo se-granite se-polycrystalline granite siyasasazeka kwaye sifunxa amandla okungcangcazela kwimida yeenkozo, ngelixa isakhiwo se-crystalline sentsimbi esicwangcisiweyo senza ukungcangcazela ngokufanelekileyo. I-cast iron ingcono kunentsimbi yokufunxa, yiyo loo nto yayisetyenziswa ngaphambili kwiziseko zezixhobo zoomatshini abachanekileyo - kodwa i-precision granite ingcono nangakumbi.
Uzinzo lobushushu: Isiseko sokuphindaphinda kweNanometer
Kwisikali se-nanometer, uzinzo lobushushu yeyona nto iphambili elawula ukuphindaphindeka kobukhulu. Utshintsho lobushushu lwe-1°C kwinxalenye yentsimbi yemitha e-1 lubangela malunga ne-11.7 micrometers yokwanda kobushushu - ii-11,700 nanometers. Kwi-granite, ukwanda okulinganayo kudla ngokuba yi-6–8 micrometers, malunga nesiqingatha sentsimbi. Kwi-ceramics zeglasi ezikhulayo eziphantsi kakhulu (ezifana neZerodur okanye i-ULE), yi-0–0.02 micrometers kuphela ngedigri nganye - kodwa ezi zinto zibiza kakhulu kwaye kunzima ukuzicubungula ngobukhulu obukhulu obufunekayo kwiziseko zoomatshini.
Kwiziseko zezixhobo ze-semiconductor, indlela yokwandisa ubushushu begranite mayingabi phantsi nje kuphela kodwa ibe nokuqikelelwa kwangaphambili. Abayili basebenzisa i-CTE eyaziwayo yegranite ukucwangcisa ubushushu kwiqonga.inkqubo yokulinganisa indawoI-CTE engalindelekanga okanye eguquguqukayo ngokwendawo — enokwenzeka kumgangatho ophantsi okanye kwi-granite ekhethiweyo ngendlela engafanelekanga — yenza ukuba imbuyekezo ingenzeki kwaye ikhokelela kwiimpazamo zendawo exhomekeke kubushushu ezingenakulinganiswa.
Esi sesinye sezizathu zokuba umthombo othile kunye neenkcukacha zegranite zibalulekile kwizixhobo ze-semiconductor. Ezi zinto kufuneka zichazwe ngendlela yokuziphatha kobushushu — zingachazwa nje ngokubanzi njenge-“granite emnyama” — kwaye kufuneka zihlangabezane neemfuno ezihambelanayo zoxinano kunye nokuhambelana okuqinisekisa ukuba ukuziphatha kwayo kobushushu kuyafana kulo lonke icandelo.
Iindawo zeGranite ezithwala umoya: Ujongano oluhambayo
Iinkqubo ezininzi zokuhamba kwezixhobo ze-semiconductor zisebenzisa ii-air bearings — iifilimu ezincinci zomoya oxinzelelweyo ezivumela izigaba ukuba zihambe phezu komphezulu wereferensi ngaphandle kokungqubana kwaye zingagugi. Ii-air bearings zibonelela ngokuguquguquka kwe-sub-nanometer motion, akukho ndlela yokutyibilika (eya konakalisa indawo ye-nanometer-scale), kwaye akukho kungcoliswa kwe-lubrication okunokubeka emngciphekweni imeko-bume yegumbi lokucoca.
Ukusebenza kwebheriya yomoya kuxhomekeke kakhulu kumphezulu ekhwele kuwo. Iimpazamo zokuthamba kumphezulu webheriya ziba ziimpazamo zokubeka isiteji. Uburhabaxa bomphezulu buchaphazela uzinzo lwefilimu yomoya. Izinto ezisetyenzisiweyo mazibe nzima ngokwaneleyo ukumelana nokuguguleka ukuba ifilimu yomoya iyawa okomzuzwana ngexesha lokusebenza. Kwaye izinto ezisetyenzisiweyo mazihambelane nobushushu beqonga kunye nenkqubo yokubonelela ngomoya ukuze kuthintelwe ukwanda okwahlukileyo okutshintsha umsantsa womoya.
I-granite echanekileyo, ethe tyaba ibe tyaba ngaphezu kwe-1 μm kumgama wokuhamba we-bearing kwaye ipholishwe ukuya kwi-Ra ngaphantsi kwe-0.1 μm, iyahlangabezana nazo zonke ezi mfuno. Ukudibanisa ubunzima obuphezulu (ukuxhathisa ukuguguleka), uburhabaxa bomphezulu obuphantsi (ukuxhasa iifilimu zomoya ezizinzileyo), kunye nozinzo olulinganayo (ukugcina uburhabaxa ngokuhamba kwexesha) kwenza i-granite ibe yinto ekhethwayo kwiindawo zokubhekisa zomoya kwizicelo ze-semiconductor ezifuna amandla.
Ukuhlolwa kweGranite kwiWafer kunye nezixhobo zeMetrology
Ngaphaya kwe-lithography, i-granite idlala indima ebaluleke ngokulinganayo kwizixhobo ezisetyenziselwa ukuhlola nokulinganisa ii-wafers ze-semiconductor. Ii-scanning electron microscopes (SEMs), iinkqubo ze-focused ion beam (FIB), izixhobo zokuhlola iziphene ze-optical, kunye neenkqubo ze-overlay metrology zonke zixhomekeke kwiziseko ezizinzileyo, ezingenazo iintshukumo ukuze zifezekise ukuchaneka komlinganiselo wazo ofunekayo.
I-critical dimension scanning electron microscope (CD-SEM) elinganisa ububanzi besango lee-nanometers ezi-3 kufuneka ifane ngokuchanekileyo nge-sub-nanometer. Naluphi na ungcangcazelo phakathi kwesampuli kunye nomqadi we-electron ngexesha lokufunyanwa komfanekiso luyenza ingabonakali umfanekiso kwaye lungenise ukungaqiniseki komlinganiselo. Isiseko segranite sahlula isigaba sesampuli kwiingcangcazelo zomgangatho, sibonelela ngendawo ezolileyo yoomatshini apho ukulinganiswa kwesikali seathom kunokwenzeka khona.
Ngokufanayo, iinkqubo ze-optical scatterometry kunye nezixhobo ze-wafer geometry zisebenzisa iziseko ze-granite kunye neendawo zokubhekisa ukugcina ubudlelwane bejometri phakathi kwemiqadi yokulinganisa kunye nomphezulu we-wafer. Ukuchaneka kokulinganisa kwesixhobo sonke - okumisela ukuba i-wafer iyaphumelela okanye ayiphumeleli ukuhlolwa - ekugqibeleni kuxhomekeke ekuzinzeni kobukhulu be-granite engaphantsi kwayo.
Izicelo zoshishino: Imephu engaphelelanga yeGranite kwiMveliso yeSemiconductor
Ukuze uqonde ububanzi bendima yegranite ekwenzeni i-semiconductor, cinga ngeentlobo zezixhobo apho izinto zegranite ezichanekileyo zifumaneka khona rhoqo: ii-scanners ze-photolithography kunye nee-steppers (iziseko zesigaba se-wafer, iziseko zesigaba se-reticle, iifreyimu zesalathiso); izixhobo ze-chemical mechanical planarization (CMP) (iindawo zesalathiso sediski yokulungisa, izigaba zokulinganisa); iinkqubo zokuhlola i-wafer (iziseko zesigaba, izibuko zesalathiso, amaqonga okwahlula ukungcangcazela); izixhobo ze-metrology eziquka ii-scatterometers, ii-ellipsometers, kunye nezixhobo ze-interferometric overlay; iinkqubo zokuphatha i-wafer kunye nezothutho apho uzinzo lobukhulu luthintela umonakalo we-wafer; iinkqubo zokuhlola i-electron beam kunye neenkqubo ze-lithography; kunye nezixhobo zokufakelwa kwe-ion apho uzinzo lokubeka i-beam lubalulekile.
Kuzo zonke ezi zicelo, i-granite ayilongeniso yempahla kodwa licandelo elichanekileyo elichaza ukusebenza kwayo ngokuthe ngqo amandla enkqubo. Umahluko phakathi kwecandelo le-granite elenziwe ukuya ku-±10 μm flatness kunye nelinye elenziwe ukuya ku-±0.5 μm flatness ayilophuculo lwe-20× — isenokuba ngumahluko phakathi kwesixhobo esifezekisa iinkcukacha zaso kunye nesinye esingenakukwazi ngokupheleleyo.
I-Sourcing Precision Granite yezicelo ze-Semiconductor
Ngenxa yeemfuno zokusebenza kwezicelo ze-semiconductor, ukukhethwa kunye neziqinisekiso zomthengisi we-granite sisigqibo esibalulekileyo sobunjineli. Ngaphaya kweenkcukacha ezisisiseko zezinto - uxinano, i-thermal expansion coefficient, i-flatness grade - abathengi kufuneka bavavanye amandla okwenyani omthengisi (ngaba banokuqinisekisa oko bathi bayakufezekisa?), amava abo ngezicelo zezixhobo ze-semiconductor, ukuqina kwenkqubo yabo yolawulo lomgangatho, kunye nokukwazi kwabo ukugcina ukuhambelana kuzo zonke iibhetshi zemveliso.
Uthotho lobonelelo lweshishini le-semiconductor aluxoleli: icandelo elichanekileyo elingaphumeleliyo ukuhlangabezana neemfuno linokulibazisa ukuhanjiswa kwezixhobo, lonakalise idatha yemveliso, okanye lifune ukuhlaziywa kwentsimi okubiza kakhulu. Ixabiso lesiseko segranite esichanekileyo esihlangabezana neemfuno lincinci xa lithelekiswa nexabiso lesinye esingazifezekisiyo.
Isiphelo
Indima yeGranite kwizixhobo ze-semiconductor ayibonakali kwabaninzi ababukeleyo — ifihliwe phantsi kobuchwepheshe obukhazimlayo be-laser, i-electron beams, kunye ne-nanoscale optics. Kodwa isisiseko. Ukuchaneka kwesikali se-nanometer kunye nokuphindaphindeka kwezixhobo zokwenza i-semiconductor kuxhomekeke kuzinzo olulinganayo, ukuxinana kokungcangcazela, kunye nomgangatho womphezulu wezinto zegranite ezichanekileyo.
Njengoko ishishini le-semiconductor liqhubeka nokunyusa ubungakanani be-transistor ngaphantsi kwemida yangoku, iimfuno kuzo zonke izinto ezikwizixhobo - kuquka nesiseko se-granite - ziya kwanda kuphela. Abavelisi abanokubonelela ngezinto ze-granite ezihlangabezana nezi mfuno ziguqukayo, kunye nedatha yokulinganisa eqinisekisiweyo yokuyingqina, baya kudlala indima ebalulekileyo ekuvumeleni isizukulwana esilandelayo setekhnoloji ye-semiconductor.
Ixesha leposi: Juni-30-2026