Hauv kev tsim khoom siv semiconductor, ua cov khoom siv tseem ceeb uas txiav txim siab qhov tseeb ntawm cov txheej txheem tsim khoom siv chip, qhov ruaj khov ntawm qhov chaw sab hauv ntawm lub tshuab photolithography yog qhov tseem ceeb heev. Txij li qhov kev txhawb nqa ntawm lub teeb ultraviolet hnyav mus rau kev ua haujlwm ntawm lub platform txav mus los nanoscale precision, yuav tsis muaj qhov sib txawv me ntsis hauv txhua qhov txuas. Cov hauv paus granite, nrog rau ntau yam khoom tshwj xeeb, qhia txog qhov zoo tshaj plaws hauv kev ua kom ruaj khov ntawm cov tshuab photolithography thiab txhim kho qhov tseeb ntawm photolithography.
Kev ua tau zoo heev ntawm kev tiv thaiv hluav taws xob
Sab hauv ntawm lub tshuab photolithography puv nrog ib puag ncig electromagnetic nyuaj. Kev cuam tshuam electromagnetic (EMI) tsim los ntawm cov khoom xws li lub teeb ultraviolet hnyav, lub cev muaj zog tsav, thiab cov khoom siv fais fab siab, yog tias tsis tswj tau zoo, yuav cuam tshuam loj heev rau kev ua haujlwm ntawm cov khoom siv hluav taws xob precision thiab cov kab ke optical hauv cov khoom siv. Piv txwv li, kev cuam tshuam yuav ua rau muaj kev hloov pauv me ntsis hauv cov qauv photolithography. Hauv cov txheej txheem tsim khoom siab heev, qhov no txaus kom ua rau muaj kev sib txuas transistor tsis raug ntawm lub nti, txo qis qhov txiaj ntsig ntawm lub nti.
Granite yog ib yam khoom uas tsis yog hlau thiab nws tsis ua hluav taws xob nws tus kheej. Tsis muaj qhov tshwm sim ntawm electromagnetic induction los ntawm kev txav ntawm cov electrons dawb hauv ib yam li cov khoom siv hlau. Qhov cwj pwm no ua rau nws yog lub cev tiv thaiv electromagnetic ntuj, uas tuaj yeem thaiv txoj kev sib kis ntawm kev cuam tshuam electromagnetic sab hauv. Thaum lub zog sib nqus hloov pauv los ntawm qhov chaw cuam tshuam electromagnetic sab nraud nthuav mus rau lub hauv paus granite, vim tias granite tsis yog hlau nplaum thiab tsis tuaj yeem raug magnetized, lub zog sib nqus hloov pauv nyuaj rau nkag mus, yog li tiv thaiv cov khoom tseem ceeb ntawm lub tshuab photolithography ntsia rau ntawm lub hauv paus, xws li cov sensors precision thiab cov khoom siv kho lens optical, los ntawm kev cuam tshuam ntawm electromagnetic cuam tshuam thiab xyuas kom meej qhov tseeb ntawm kev hloov pauv qauv thaum lub sijhawm photolithography.
Kev sib raug zoo ntawm lub tshuab nqus tsev
Vim tias lub teeb ultraviolet heev (EUV) yooj yim nqus los ntawm txhua yam khoom, suav nrog huab cua, EUV lithography tshuab yuav tsum ua haujlwm hauv qhov chaw nqus tsev. Lub sijhawm no, qhov sib xws ntawm cov khoom siv nrog qhov chaw nqus tsev dhau los ua qhov tseem ceeb heev. Hauv qhov chaw nqus tsev, cov ntaub ntawv tuaj yeem yaj, tshem tawm thiab tso cov pa roj. Cov pa roj uas tso tawm tsis yog tsuas yog nqus EUV lub teeb, txo qhov muaj zog thiab kev sib kis ntawm lub teeb, tab sis kuj tseem tuaj yeem ua rau cov iav tsom iav puas tsuaj. Piv txwv li, cov pa dej tuaj yeem oxidize cov iav tsom iav, thiab cov hydrocarbons tuaj yeem tso cov txheej carbon rau ntawm cov iav tsom iav, cuam tshuam loj heev rau qhov zoo ntawm lithography.
Granite muaj cov tshuaj lom neeg ruaj khov thiab tsis tshua tso cov pa roj tawm hauv qhov chaw nqus tsev. Raws li kev sim ua haujlwm, hauv qhov chaw nqus tsev ua qauv ntawm lub tshuab photolithography (xws li qhov chaw nqus tsev huv heev uas lub tshuab teeb pom kev zoo thiab lub tshuab duab hauv lub chamber tseem ceeb nyob, xav tau H₂O < 10⁻⁵ Pa, CₓHᵧ < 10⁻⁷ Pa), qhov tawm ntawm lub hauv paus granite qis heev, qis dua li lwm cov ntaub ntawv xws li hlau. Qhov no ua rau sab hauv ntawm lub tshuab photolithography tswj tau qhov nqus tsev siab thiab huv si ntev, ua kom ntseeg tau tias muaj kev xa hluav taws xob EUV siab thaum lub sijhawm xa hluav taws xob thiab ib puag ncig siv ultra-huv rau cov iav kho qhov muag, txuas ntxiv lub neej ua haujlwm ntawm lub tshuab kho qhov muag, thiab txhim kho kev ua haujlwm tag nrho ntawm lub tshuab photolithography.
Muaj zog tiv taus kev co thiab thermal stability
Thaum lub sijhawm ua cov txheej txheem photolithography, qhov kev ua kom raug ntawm qib nanometer xav tau tias lub tshuab photolithography yuav tsum tsis txhob muaj qhov kev co me me lossis kev hloov pauv thermal. Kev co ib puag ncig uas tsim los ntawm kev ua haujlwm ntawm lwm yam khoom siv thiab kev txav mus los ntawm cov neeg ua haujlwm hauv lub chaw ua haujlwm, nrog rau cov cua sov uas tsim los ntawm lub tshuab photolithography nws tus kheej thaum lub sijhawm ua haujlwm, txhua yam yuav cuam tshuam rau qhov tseeb ntawm photolithography. Granite muaj qhov ceev ceev thiab cov qauv tawv, thiab nws muaj kev tiv thaiv kev co zoo heev. Nws cov qauv siv lead ua hauv av yog compact, uas tuaj yeem ua kom lub zog co zoo thiab sai sai tiv thaiv kev co. Cov ntaub ntawv sim qhia tau tias nyob rau hauv tib qho chaw co, lub hauv paus granite tuaj yeem txo qhov kev co amplitude ntau dua 90% hauv 0.5 vib nas this. Piv nrog rau lub hauv paus hlau, nws tuaj yeem rov qab kho cov khoom siv kom ruaj khov sai dua, ua kom ntseeg tau qhov chaw sib piv ntawm lub lens photolithography thiab wafer, thiab zam kev ua kom tsis meej lossis tsis sib xws los ntawm kev co.
Lub caij no, qhov coefficient ntawm thermal expansion ntawm granite yog qis heev, kwv yees li (4-8) × 10⁻⁶ / ℃, uas qis dua li ntawm cov khoom siv hlau. Thaum lub sijhawm ua haujlwm ntawm lub tshuab photolithography, txawm tias qhov kub sab hauv hloov pauv vim muaj cov yam xws li cua sov los ntawm lub teeb thiab kev sib txhuam los ntawm cov khoom siv kho tshuab, lub hauv paus granite tuaj yeem tswj tau qhov ruaj khov thiab yuav tsis hloov pauv ntau vim yog thermal expansion thiab contraction. Nws muab kev txhawb nqa ruaj khov thiab txhim khu kev qha rau lub kaw lus kho qhov muag thiab lub platform txav mus los, tswj qhov sib xws ntawm photolithography raug.
Lub sijhawm tshaj tawm: Tsib Hlis-20-2025