Ipuleti lobuso le-granite elinembile lingenye yamathuluzi ayisisekelo kakhulu ku-metrology yezimboni. Lisebenza njenge-data yokubhekisela - isibonelo esibonakalayo sendiza eyisicaba - lapho zonke ezinye izilinganiso endaweni yokusebenzela ziqhathaniswa khona ekugcineni. Uma ipuleti lobuso lingalungile, zonke izilinganiso ezenziwe kusetshenziswa lona zizoqhubekisela phambili lokho kungalungi, zingcolise buthule idatha yokuhlola kanye nezinqumo zokukhiqiza.
Eziningi zezicelo zezimboni, ukufinyelela ukuthamba kuze kube ngaphakathi kwama-micrometer ambalwa kupuleti elikhulu kuyamukeleka. Kodwa onqenqemeni oluphambili - ekulinganisweni kwemishini ye-semiconductor, amalabhorethri ezindinganiso zikazwelonke, izinhlelo zokubhekisela ze-photolithography, kanye ne-CMM qualification enembile kakhulu - ukuthamba kumele kuqinisekiswe emazingeni e-nanometer. Umbuzo-ke uba: uyilinganisa kanjani into ngokwezinga eliqondile kakhulu kunezinsimbi ezivame ukutholakala ukuze ziyilinganise?
Lesi sihloko sihlola izimiso, izindlela, kanye namathuluzi asetshenziswa ukuqinisekisa nokufeza ukuthamba kwepuleti elingaphezulu kusukela ezingeni le-micrometer kuya kuma-nanometer.
Kungani Ukucaba Kubaluleke Kakhulu Kunokuba Ucabanga
Ukuthamba kwepuleti lobuso kuchazwe ngokwephutha elikhulu elivunyelwe (i-MPE) kuyo yonke indawo yokusebenza, elivame ukuvezwa ngama-micrometer (μm). Ibanga AA (ibanga lokuhweba elihle kakhulu ngaphansi kwezindinganiso eziningi zomhlaba wonke) ngokuvamile lidinga ukuthamba ngaphakathi kwe-1.6 μm yepuleti elingu-1000 × 630 mm ngaphansi kwendinganiso ye-German DIN 876, noma ngaphakathi kwezindinganiso ezithile ngaphansi kwendinganiso ye-American ASME B89.3.7.
Kodwa umongo uyikho konke. Ipuleti "eliyisicaba" elilinganisa ukuphambuka okungu-3 μm kusukela ekuqaleni kuya ekugcineni lifanele ngokuphelele ukuhlolwa kwe-workshop evamile. Ipuleti elifanayo elisetshenziswa njengedatha yokubhekisela yokulinganisa isigaba se-photolithography esihlose ukunemba kokubeka okungu-10-nanometer alifaneleki nhlobo — iphutha lalo lokuba sicaba lodwa likhulu ngokuphindwe ka-300 kunokubekezelelana kokubeka okumele kusekelwe kukho.
Leli gebe phakathi kokuthi “kuhle ngokwanele kwezicelo eziningi” nokuthi “kuhle ngokwanele kwezicelo ezidinga kakhulu” yingakho nje indlela yokulinganisa ibalulekile, nokuthi kungani kungebona bonke abakhiqizi bepuleti lobuso abanakho - noma ukwethembeka - ukuchaza imikhiqizo yabo ngokunembile ezingeni le-nanometer.
Inselele Eyisisekelo: Ukulinganisa Lokho Ongenakukuqhathanisa Ngokuqondile
Ukulinganisa ukunemba kwe-flat kuya ku-micrometer kulula kakhulu: beka ipuleti endaweni yokubhekisela eyaziwayo, uhlole ubuso ngendlela ehlelekile, bese uqopha ukuphambuka. Kodwa ukulinganisa ukunemba kwe-flat kuya ku-nanometer kuletha inkinga eyisisekelo — akukho ndawo yokubhekisela ebonakalayo ephansi ngokwanele ukuba isebenze njengendinganiso yokuqhathanisa.
Esikalini se-nanometer, yonke indawo — kufaka phakathi izindawo zokubhekisela — inephutha layo lesimo. Amandla adonsela phansi aguqula izindawo ezinkulu ngendlela elinganiswayo. Ama-gradient okushisa abangela ukwanda kokushisa kulo lonke ipuleti. Ngisho nemisinga yomoya nomsindo we-acoustic kungaletha imiphumela etholakala. Ukulinganisa ngokwako kumele kubhekele konke lokhu.
Ososayensi be-Metrology basungule izindlela eziningana zokubhekana nale nselele, eziningi zazo ezihilela ukuhlukanisa ngokwezibalo iphutha lethuluzi nephutha lento eyenziwe ngobuciko ngokusebenzisa izilinganiso eziphindaphindiwe ezithathwe ngezindlela noma izikhundla ezahlukene.
Izindlela Zokulinganisa Eziyinhloko kanye Nezinsimbi
Amaleveli kagesi kanye nezinzwa zokuthambekela ziphakathi kwamathuluzi awusizo kakhulu okuhlukanisaipuleti elingaphezuluukuthamba ezindaweni ezinkulu. Izinsimbi ezifana nochungechunge lwe-WYLER Leveltronic (Switzerland) zifinyelela izinqumo ze-angular ezingu-0.001 mm/m noma ngaphezulu — okulingana nokuthola umehluko wokuphakama we-micrometer eyi-1 ngaphezu kwemitha eyi-1. Ngokuhamba ngokuhlelekile endaweni ngephethini yegridi (indlela ye-Union Jack, iphethini eliphambene, noma igridi egcwele), isazi semetro esinekhono singakha imephu ephelele ye-topographic yendawo.
I-interferometry ye-laser inikeza ushintsho lwesinyathelo kumandla okulinganisa ukuze kube yisicaba ezingeni le-sub-micrometer kanye ne-nanometer. Ithuluzi elifana ne-interferometer ye-laser ye-Renishaw XL-80 lingalinganisa ukufuduka libe yisisombululo esingcono kune-nanometer eyodwa emabangeni amamitha amaningana. Ekulinganisweni kwepuleti lobuso, umsebe we-laser uqondiswa ngaphesheya kwepuleti kuyilapho isibuko esicwebezelayo noma esibhekiselayo silandela indlela elawulwayo; ukuphambuka emsebeni obonisiwe kwembula isimo sobuso.
Ukulinganisa ukuthamba kwe-interferometric kusetshenziswa ama-optical flats — ingilazi ecwebezelisiwe kakhulu noma izinkomba ze-silica ezihlanganisiwe ezinamaphutha angaphansi kwama-nanometer angu-30 — kungachaza ukunemba kwamapuleti ongaphezulu kuya kuma-nanometer ezindaweni ezingamamilimitha-skwele angamakhulu amaningana ngesikhathi esisodwa. Ama-interferometer agcwele imbobo asetshenziswa ezikhungweni ze-metrology zikazwelonke angalinganisa izindawo zobubanzi obungu-600 mm ngesilinganiso esisodwa.
Izinzwa zokuhambisa amandla kanye nama-probe okuthwala umoya anikeza enye indlela, enesisombululo sezinga le-nanometer kanye nekhono lokuskena indawo ngaphandle kokuthintana. Lokhu kuvame ukusetshenziswa kuhlanganiswe ne-granite enembile noma izigaba zokubhekisela ze-ceramic - ezisebenza njengereferensi yokunyakaza - okudala uhlelo lokulinganisa oluzibhekisela lona.
Indlela Yamapuleti Amathathu: Ukuzibhekisela Kokuphansi
Enye yezindlela zasendulo ezinamandla kakhulu zokufeza nokuqinisekisa ukuba yisicaba ngaphandle kokubhekisela okuphezulu yindlela yamapuleti amathathu. Kule ndlela, amapuleti amathathu axhumene ngokulandelana okuthile kokujikeleza nokuqhathanisa. Izibalo zenqubo ziqinisekisa ukuthi noma yiliphi iphutha elihlelekile kwelinye ipuleti livezwa ngokusebenzisana kwalo namanye amabili - amapuleti achaza ndawonye indiza eyisicaba kunokuba achaze noma yikuphi ukubhekisela kwangaphandle.
Indlela enamapuleti amathathu iyisisekelo somlando sokukhiqizwa kwamapuleti okungaphezulu okunembe kakhulu futhi isasebenza nanamuhla. Ukusetshenziswa kwayo kwanamuhla kuhlanganisa amakhono endabuko okubamba ngesandla nokulinganisa nge-elekthronikhi ukuqondisa inqubo yokulungisa — izingcweti ezinekhono ezingakwazi “ukufunda” indawo ngokuzizwa, kuhlanganiswe namazinga e-elekthronikhi alinganisa lokho okutholwa yizandla.
Umphumela uba inqubo ehambisanayo: umjikelezo ngamunye wokuhlanganisa, ukulinganisa, kanye nokususa izinto ezikhethiwe usondeza kancane kancane wonke amapuleti amathathu ekubeni yisicaba okuphelele. Isici esivimbelayo akuyona indlela kodwa isineke, ikhono, kanye namathuluzi okulinganisa atholakalayo abantu abenza umsebenzi.
Indima Yendawo Yokulinganisa
Ezingeni le-nanometer, indawo yokulinganisa iba yingxenye yesistimu yokulinganisa. Izinga lokushisa kumele lilawulwe hhayi nje ngenani elijwayelekile kodwa nebhande eliqinile — ngokuvamile ±0.5°C noma ngaphezulu — ngoba ukwanda kokushisa kwepuleti le-granite elingamamitha angu-1 ku-0.1°C kuphela kungamakhulu amaningana ama-nanometer. Umswakama uthinta ubuso be-granite uqobo kanye nokukhanya komoya lapho imisebe ye-laser interferometry ihamba khona. Ukudlidliza okuvela esakhiweni sesakhiwo, i-HVAC, noma imishini eseduze kwethula amaphutha okuma aguqukayo okonakalisa izilinganiso ze-static flatness.
Yingakho amalabhorethri aqinile okukala imitha - kanye nabakhiqizi be-granite abangochwepheshe kakhulu - etshala imali kakhulu ezindaweni ezilawulwayo. Igumbi elilawulwa amazinga okushisa nomswakama elakhelwe ngenhloso elinephansi elihlukanisiwe nokudlidliza, imisele yokulwa nokudlidliza ezungeze umngcele, kanye nama-crane athule angaphezulu akuyona into yokunethezeka - kuyisidingo sobuchwepheshe sokufinyelela nokuqinisekisa amazinga aphezulu okusicaba.
Imisele elwa nokudlidliza (ngokuvamile ububanzi obungu-500 mm kanye nokujula okungu-2000 mm okuzungeze igumbi lokulinganisa) ihlukanisa iphansi lokulinganisa ngokomzimba ekudlidlizeni kwesakhiwo. Izitezi ezenziwe ngokhonkolo onamandla kakhulu ziye kubukhulu obungu-1000 mm noma ngaphezulu zinikeza ubunzima nokuqina okudingekayo ukuze kumelwane nokuphazamiseka okuguquguqukayo. Lokhu kutshalwa kwezimali kwengqalasizinda kunquma ngqo ukuthi yimaphi amazinga okuthamba umenzi angawafinyelela futhi awaqinisekise ngokuthembekile.
Ukulandelela Ukulinganisa: Uchungechunge Lokuqiniseka
Ukulinganisa ubucaba kuthembekile kuphela njengezinto ezisetshenziswa ukukwakha — futhi lezo zinto zithembekile kuphela uma ukulinganisa kwazo kungalandelelwa ezindinganisweni zikazwelonke nezamazwe ngamazwe. Ku-metrology enembile, lolu chungechunge lokulandelela alunakuzikhethela: luyisisekelo sokuthembeka kokulinganisa.
Incazelo ye-Système international d'unités (SI) yemitha manje iyabonakala ngesivinini sokukhanya kanye nezindinganiso zemvamisa ye-laser ezigcinwa yizikhungo zikazwelonke ze-metrology (NMIs) — njenge-NIST e-United States, i-PTB eJalimane, i-NPL e-United Kingdom, kanye ne-NIM eShayina. Izitifiketi zokulinganisa ezikhishwe yizikhungo zesifundazwe noma zikazwelonke ze-metrology zinikeza ubufakazi obubhaliwe bokuthi ithuluzi elithile liqhathaniswe nezindinganiso zezinga eliphezulu ezilandelwa kulezi ziqalo eziyinhloko.
Kumenzi we-granite onembile, ukuba nazo zonke izinsimbi zokulinganisa ezilinganiswe yizikhungo ze-metrology ezigunyaziwe - ezinezitifiketi ezilandelelwa ngokwezinga likazwelonke - kusho ukuthi amanani okusicaba abikwe emikhiqizweni yabo akuzona izinombolo ezingahleliwe kodwa izilinganiso ezilandelelwa yi-SI ezinokungaqiniseki okulinganiselwe.
Isiphetho: Ukulinganisa Akukhona Ukuqinisekiswa Nje — Kungukukhiqiza
Ukulinganisa ukuthamba kwepuleti lobuso kuya ekunembileni kwe-nanometer akuyona nje isheke lokugcina lekhwalithi. Kuyingxenye ebalulekile yenqubo yokukhiqiza, kuqondisa isinyathelo ngasinye sokulungisa ngesikhathi sokuxhumanisa nokunikeza impendulo eqhuba ubuso bufinyelele esilinganisweni esidingekayo. Ngaphandle kwekhono lokulinganisa ngokunembile, alikho ikhono lokukhiqiza ngokunembile.
Amandla okufinyelela nokuqinisekisa ngokukholekayo ukuthamba kwezinga le-nanometer kumapuleti obuso be-granite amelela umngcele wangempela wamandla - ohlukanisa inani elincane labakhiqizi bokunemba abanekhono kakhulu emhlabeni kwabaningi. Kudinga izinto ezifanele, imishini efanele, indawo efanele, amathuluzi afanele, alinganiswe ngezindinganiso ezilandelekayo, aqhutshwa abantu abanokuqeqeshwa nolwazi ukuze bawasebenzise kahle.
Kubasebenzisi bamapuleti okunembe kakhulu — kungaba semalabhorethri kazwelonke ezindinganiso, ezinkampanini zemishini ye-semiconductor, noma ezindaweni ze-CMM ezithuthukisiwe — ukuqonda ukuthi amapuleti abo alinganiswa kanjani akuyona into exakile. Kunquma ngqo ukuthi izilinganiso ezenziwe kulawo mapuleti zingathenjwa yini.
Isikhathi sokuthunyelwe: Juni-30-2026