Yuav tooj liab heatsink yuav hloov los ntawm lwm yam thev naus laus zis hauv PCB tsim
Tooj liab, raws li cov khoom siv rau cua txias heatsinks, muaj cov thermal conductivity thiab tuaj yeem hloov cov cua sov los ntawm cov khoom siv hluav taws xob mus rau lwm qhov ntawm lub rooj tsavxwm lossis rau lub dab dej kub, yog li txo qhov kev ua haujlwm kub ntawm cov khoom. Tsis tas li ntawd, tooj liab kuj muaj kev ua tau zoo thiab lub zog, thiab tuaj yeem tsim ua cov ntawv nyias lossis lwm cov duab kom tau raws li qhov xav tau ntawm cov cua sov sib txawv. Kev ruaj ntseg thiab kev ntseeg siab ntawm cov ntaub ntawv tooj liab kuj tseem ua rau lawv tswj xyuas cov cua sov ua haujlwm ntev hauv ntau qhov chaw ua haujlwm, uas yog qhov tseem ceeb rau cov khoom siv hluav taws xob uas yuav tsum tau ua haujlwm ntev.
Tooj tooj cua kub dab dej hauv PCB pawg thawj coj saib tsis zoo li yuav tsum tau hloov tag nrho los ntawm lwm cov thev naus laus zis. Vim nws cov thermal conductivity zoo heev, kev ua tau zoo, cov khoom siv zoo heev, thiab cov khoom siv hluav taws xob, tooj liab tau dhau los ua cov khoom siv dav siv hauv PCB cov ntawv thov kub dissipation. Txawm li cas los xij, cov thev naus laus zis thev naus laus zis tshiab thiab cov khoom siv tau raug tshawb fawb thiab tsim kho tshiab nrog lub hom phiaj ntawm kev txhim kho kev ua tau zoo, txo cov nqi, lossis hloov mus rau qee qhov kev thov ib puag ncig. Piv txwv li, cov khoom siv hluavtaws graphite nrog cov thermal conductivity siab, cov ntaub ntawv thermal interface siab heev (TIMs), cov tshuab hluav taws xob ua kom sov, thiab cov kev daws teeb meem raws li cov khoom siv nanomaterials thiab cov ntaub ntawv hloov theem yog txhua qhov kev tshawb fawb hotspots. Cov thev naus laus zis tshiab thiab cov khoom siv no tuaj yeem hloov pauv lossis sib koom nrog cov khoom siv hluav taws xob tooj liab hauv cov xwm txheej tshwj xeeb, nyob ntawm lawv qhov kev ua tau zoo, tus nqi, thiab cov ntawv thov tshwj xeeb.
Nrog rau kev nce qib ntawm thev naus laus zis, cov thev naus laus zis thev naus laus zis tshiab tau txhim kho sai. Piv txwv li, hluavtaws graphite thiab graphene cov ntaub ntawv uas muaj thermal conductivity, vim lawv ultra-nyias, hnav, thiab thermal conductivity piv los yog txawm siab tshaj tooj liab, yog maj mam siv nyob rau hauv lub tshav kub dissipation. Cov ntaub ntawv no tuaj yeem muab cov cua sov ua kom zoo dua hauv qhov ntim me me, uas tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov khoom siv hluav taws xob uas ua raws li miniaturization thiab kev ua haujlwm siab.
Tsis tas li ntawd, cov cuab yeej ua kom txias txias siv cov khoom ntxeem tau, microchannels, thiab lwm yam qauv kuj tau txais kev saib xyuas ntxiv. Hom kev siv tshuab no ua rau kom cov cua sov dissipation saum npoo av thiab txhim kho cov cua sov kom zoo dua los ntawm kev hloov cov qauv ntawm cov ntaub ntawv los yog los ntawm cov kua dej dynamics tsim. Txawm hais tias cov thev naus laus zis no tuaj yeem nce tus nqi thiab qhov nyuaj, lawv muab cov kev daws teeb meem tshiab rau cov cua sov dissipation, tshwj xeeb tshaj yog nyob rau hauv qhov chaw txwv kev siv, uas qhia tau tias muaj peev xwm loj heev.
Txawm hais tias tooj liab muaj ntau qhov zoo, nws kuj ntsib qee qhov kev sib tw. Piv txwv li, tus nqi ntawm tooj liab yuav muaj qhov hloov pauv loj vim yog kev cuam tshuam ntawm kev lag luam thoob ntiaj teb, thiab cov nqi nce yog qhov teeb meem uas tsis tuaj yeem tsis quav ntsej. Lub caij no, tooj liab kuj hnyav heev, uas yuav dhau los ua qhov txwv tsis pub siv niaj hnub no nrhiav cov khoom siv hnyav. Tsis tas li ntawd, raws li kev siv hluav taws xob ntawm cov khoom siv hluav taws xob nce, cov tsoos tooj liab cov khoom siv hluav taws xob tuaj yeem ntsib cov teeb meem kub kub vim qhov kub siab, cuam tshuam rau kev sib xws ntawm cov cua kub dissipation. Hauv kev daws cov teeb meem no, cov kws tshawb fawb tab tom tshawb nrhiav kev siv tooj liab alloys lossis cov ntaub ntawv sib xyaw ua lwm txoj kev daws teeb meem los txo cov nqi khoom thiab qhov hnyav, thaum tseem txhim kho cov cua sov ua haujlwm. Txawm li cas los xij, tooj liab kub dab dej tsis tuaj yeem hloov pauv tag nrho hauv ntau daim ntawv thov vim lawv qhov kev ua tau zoo tshaj plaws.
Hauv qee daim ntawv thov kev ua haujlwm siab, xws li cov servers thiab cov khoos phis tawj ua haujlwm siab, tso siab rau ntawm cov dab dej kub tooj liab yuav tsis ua raws li cov kev xav tau txias. Yog li ntawd, cov txheej txheem sib xyaw ua kom sov dissipation tuaj yeem siv rau hauv cov haujlwm no, ua ke nrog cov khoom siv hluav taws xob tooj liab thiab lwm yam ntaub ntawv lossis cov thev naus laus zis, kom ua tiav kev tswj xyuas thermal zoo dua. Piv txwv li, siv tooj liab ua substrate rau thermal interface cov ntaub ntawv (TIMs), ua ke nrog high thermal conductivity theem hloov cov ntaub ntawv los yog kua hlau, yuav ua tau zoo txhim kho tag nrho cov thermal conductivity efficiency. Lub caij no, qee cov khoom siv hluav taws xob sib xyaw ua ke tuaj yeem siv cov tshuab ua kua txias ua ke nrog tooj liab kub dab dej los ua kom zoo dua cov cua sov los ntawm kev hloov hluav taws xob los ntawm cov kua dej tawm. Hom dej txias no feem ntau xav tau tooj liab lossis tooj liab alloy cua sov qhov chaw thiab cov khoom siv sib txuas, tseem ua rau pom qhov tseem ceeb ntawm tooj liab hauv tshav kub dissipation.
Txawm li cas los xij, hauv kev tswj hwm thermal, kev hloov kho thiab kho dua tshiab ntawm cov ntaub ntawv thiab thev naus laus zis yog ib qho kev ua tsis tu ncua. Hauv kev tshawb nrhiav txuas ntxiv thiab kev tsim kho tshiab, kev siv tooj liab kub dab dej tej zaum yuav raug txwv, tab sis lawv tau tuav qhov chaw ntev vim lawv qhov kev ua tau zoo heev. Kev kawm tob tob ntawm cov ntaub ntawv sib txawv thiab kev sib koom ua ke thiab kev siv cov thev naus laus zis tshiab yuav ua rau muaj peev xwm ntau dua los daws cov teeb meem thermal ntawm cov khoom siv hluav taws xob.
