Granite yog dav siv nyob rau hauv lub semiconductor tsim cov txheej txheem raws li cov khoom siv rau nws cov khoom siv hluav taws xob ruaj khov, thiab tsawg thermal nthuav tawm coefficiention. Txawm li cas los xij, lub rooj sib txoos ntawm cov txheej txheem granite yog ib txoj kev nyuaj uas yuav tsum muaj qib siab ntawm qhov tseeb thiab qhov tseeb. Hauv tsab xov xwm no, peb yuav tham txog qee qhov tsis xws luag uas yuav tshwm sim thaum sib dhos ntawm cov kev sib dhos graniteonductor hauv cov semiconductor kev tsim khoom thiab yuav ua li cas kom zam lawv.
1. Misalignment
Misalignment yog ib qho ntawm qhov tsis xws luag uas tuaj yeem tshwm sim thaum sib dhos ntawm cov kev sib dhos ntawm cov khoom siv granite. Nws tshwm sim thaum ob lossis ntau cov khoom siv tsis sib xws nrog kev sib hwm. Kev ua tsis zoo tuaj yeem ua rau cov khoom siv coj los ua kom muaj kev coj ua tsis ncaj ncees thiab tuaj yeem ua rau muaj kev ua phem ntawm cov khoom kawg.
Txhawm rau kom tsis txhob muaj kev tsis zoo, nws yog ib qho tseem ceeb kom paub meej tias txhua yam kev sib txuas ua tiav kom raug thaum lub rooj sib txoos. Qhov no tuaj yeem ua tiav los ntawm kev siv precision cov cuab yeej thiab cov tswv yim. Ib qho ntxiv, nws yog ib qho tseem ceeb kom paub meej tias cov khoom siv tau zoo ntxuav kom tshem tawm cov khib nyiab kom zoo los yog cov khoom paug uas tuaj yeem cuam tshuam nrog cov kev sib cav sib ceg.
2. Nto tsis txaus ntseeg
Nto tsis txaus ntseeg yog lwm qhov tsis xws luag uas tuaj yeem tshwm sim thaum lub rooj sib txoos ntawm cov rooj sib txoos ntawm granite. Cov kev coj ua tsis zoo no muaj xws li khawb, pits, thiab lwm qhov chaw tsis xwm yeem uas tuaj yeem cuam tshuam nrog kev ua haujlwm ntawm cov khoom kawg. Nto ua tsis tiav kuj tseem tuaj yeem tshwm sim los ntawm kev tuav tsis raug lossis kev puas tsuaj thaum lub sijhawm tsim khoom.
Txhawm rau kom tsis txhob muaj kev ua tsis zoo nyob sab saum toj, nws yog qhov tseem ceeb los tswj cov khoom kom zoo thiab siv cov khib nyiab kom huv kom tshem tawm cov khib nyiab los yog cov kab mob uas yuav khawb lossis ua rau cov npoo. Ib qho ntxiv, nws yog ib qho tseem ceeb kom siv cov cuab yeej tsim nyog thiab cov tswv yim rau lub tshuab thiab txhuam cov npoo ntawm cov npoo av kom ntseeg tau tias lawv tsis muaj kev ywj pheej ntawm kev tsis txaus siab saum npoo.
3. Thermal expansion mismatch
Thermal expansion tsis sib xws yog lwm yam tsis xws luag uas tuaj yeem tshwm sim thaum lub rooj sib txoos ntawm cov kev sib dhos ntawm cov khoom siv granite. Qhov no tshwm sim thaum sib txawv cov khoom sib txawv muaj cov kev nthuav dav thermal no, ua rau muaj kev ntxhov siab thiab deformation thaum cov khoom siv hloov. Thermal nthuav kev ua tsis tau muaj peev xwm ua rau cov khoom sib xyaw ua ntej thiab tuaj yeem ua rau muaj kev ua phem ntawm cov khoom kawg.
Txhawm rau kom tsis txhob muaj thermal expansion mismatch, nws yog ib qho tseem ceeb kom xaiv cov khoom siv nrog cov ntsuas hluav taws xob zoo sib xws. Ib qho ntxiv, nws yog ib qho tseem ceeb kom tswj tau qhov kub ntawm lub sijhawm thaum lub rooj sib txoos los txo kev ntxhov siab thiab deformation nyob rau hauv cov cheebtsam.
4. Cracking
Kev thauv yog qhov tsis xws luag uas tuaj yeem tshwm sim thaum lub rooj sib txoos ntawm cov khoom siv granite. Cov kab nrib pleb tuaj yeem tshwm sim vim kev tuav phom sij, kev puas tsuaj thaum lub sijhawm tsim kev tsim khoom, lossis kev ntxhov siab thiab deformation tshwm sim los ntawm kev nthuav dav. Cov kab nrib pleb tuaj yeem cuam tshuam kev ua haujlwm ntawm cov khoom kawg thiab tuaj yeem ua rau kev puas tsuaj ntawm cov khoom sib xyaw.
Txhawm rau kom tsis txhob tawg, nws yog ib qho tseem ceeb los tswj cov khoom kom zoo thiab zam txhua yam cuam tshuam lossis kev poob siab uas yuav ua rau kev puas tsuaj. Tsis tas li ntawd, nws yog ib qho tseem ceeb kom siv cov cuab yeej tsim nyog thiab cov tswv yim rau lub tshuab thiab txhuam lub hau ntawm cov khoom siv kom tsis txhob muaj kev ntxhov siab thiab deformation.
Hauv kev xaus, lub rooj sib txoos muaj kev vam meej rau cov kev tsim qauv semiconductor yuav tsum ua tib zoo mloog kom meej thiab theem siab ntawm precision thiab raug. Los ntawm kev zam cov kev tsis xws luag xws li misalignment, kev nthuav dav ntawm kev tawg, thiab cov tuam txhab tuaj yeem ua kom pom tseeb tias lawv cov khoom ua tau zoo tshaj plaws ntawm kev ua tau zoo thiab kev ntseeg tau.
Lub Sijhawm Post: Dec-06-2023