Hav nyob ntawd! Raws li ib tug neeg muag khoom ntawm graphite semiconductors, kuv tau mob siab rau cov khoom ntawm cov ntaub ntawv zoo kawg nkaus. Ib qho ntawm cov ntsiab lus tseem ceeb uas cuam tshuam rau cov khoom ntawm graphite semiconductors yog lawv cov qauv lattice. Nyob rau hauv no blog ncej, kuv mam li dhia mus rau hauv yuav ua li cas cov lattice qauv ntawm graphite semiconductors cuam tshuam lawv cov khoom thiab vim li cas nws tseem ceeb rau ntau yam kev siv.
Ua ntej tshaj, cia peb tham me ntsis txog dab tsi graphite. Graphite yog ib daim ntawv ntawm carbon, thiab nws muaj ib tug tshwj xeeb lattice qauv. Nws yog tsim los ntawm cov txheej txheem ntawm carbon atoms teem rau hauv ib tug hexagonal qauv. Cov khaubncaws sab nraud povtseg no tau tuav ua ke los ntawm cov tub rog van der Waals tsis muaj zog, uas tso cai rau lawv swb ib leeg yooj yim. Qhov no muab graphite nws zoo - paub lubricating zog.
Tam sim no, thaum peb tab tom tham txog graphite ua ib qho semiconductor, cov qauv lattice plays lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws cov hluav taws xob, thermal, thiab cov khoom siv tshuab.
Cov khoom hluav taws xob
Lub hexagonal lattice qauv ntawm graphite muab nws ib co nthuav cov yam ntxwv ntawm hluav taws xob. Txhua carbon atom nyob rau hauv lub lattice yog covalently bonded rau peb lwm carbon atoms, tawm hauv ib tug dawb electron ib atom. Cov electrons dawb no tuaj yeem txav mus los hauv cov txheej txheem ntawm graphite lattice.
Qhov kev txav ntawm cov hluav taws xob no yog qhov ua rau graphite ib tus neeg xyuas pib zoo ntawm hluav taws xob hauv lub dav hlau ntawm cov txheej. Qhov tseeb, cov conductivity raws cov khaubncaws sab nraud povtseg yog siab heev piv rau ntau lwm yam ntaub ntawv. Txawm li cas los xij, cov conductivity perpendicular rau cov khaubncaws sab nraud povtseg qis dua vim hais tias cov electrons muaj lub sij hawm nyuaj txav ntawm cov khaubncaws sab nraud povtseg vim lub zog van der Waals tsis muaj zog.
Qhov no anisotropic hluav taws xob conductivity yog ib tug ncaj qha tshwm sim ntawm lub lattice qauv. Rau kev siv semiconductor, qhov anisotropy no tuaj yeem yog qhov zoo dua thiab kev sib tw. Hauv qee cov khoom siv, tej zaum peb yuav xav ua kom zoo dua ntawm qhov siab hauv - dav hlau conductivity kom hloov hluav taws xob zoo. Piv txwv li, nyob rau hauv qee yam ntawm nyias - zaj duab xis transistors, siab nyob rau hauv - dav hlau conductivity ntawm graphite yuav siv tau los tsim siab - ceev coj raws.
Ntawm qhov tod tes, qhov qis perpendicular conductivity tuaj yeem siv los cais cov txheej txheem sib txawv hauv ntau - txheej txheej. Cov cuab yeej no yog qhov tseem ceeb rau kev tiv thaiv hluav taws xob cuam tshuam ntawm cov khoom sib txawv hauv cov khoom siv semiconductor.
Yog tias koj txaus siab siv graphite hauv daim ntawv thov semiconductor, koj tuaj yeem xav tshawb xyuas peb Graphite Pwm Rau Semiconductor. Cov pwm no yog tsim los ua kom zoo dua ntawm cov khoom siv hluav taws xob tshwj xeeb ntawm graphite los tsim cov khoom zoo - zoo semiconductor.
Thermal Properties
Lub lattice qauv ntawm graphite kuj tseem muaj feem cuam tshuam rau nws cov khoom thermal. Ib yam li nrog hluav taws xob conductivity, graphite nthuav tawm anisotropic thermal conductivity. Cov pa roj carbon atoms nyob rau hauv cov khaubncaws sab nraud povtseg yog zoo packed thiab covalently bonded, uas tso cai rau cua sov mus rau kis tau zoo los ntawm lub lattice vibrations (phonons) nyob rau hauv cov khaubncaws sab nraud povtseg.
Yog li ntawd, thermal conductivity nyob rau hauv lub dav hlau ntawm cov khaubncaws sab nraud povtseg yog siab heev. Qhov tseeb, graphite muaj ib qhov siab tshaj plaws hauv - dav hlau thermal conductivity ntawm cov khoom tsis yog - hlau. Qhov siab thermal conductivity no ua rau graphite qhov kev xaiv zoo tshaj plaws rau cov cua sov dissipation hauv cov khoom siv semiconductor.
Hauv cov khoom siv hluav taws xob semiconductor, cov cua sov ntau yog tsim thaum lub sijhawm ua haujlwm. Yog tias qhov cua sov no tsis zoo, nws tuaj yeem ua rau kev ua haujlwm ntawm cov nti kom degrade thiab tseem ua rau muaj kev puas tsuaj mus tas li. Graphite tuaj yeem siv los ua lub dab dej kub lossis cov khoom siv thermal interface kom hloov cov cua sov kom deb ntawm cov khoom kub.
Qhov qis thermal conductivity perpendicular rau cov khaubncaws sab nraud povtseg kuj tseem yuav pab tau rau qee qhov kev siv. Nws tuaj yeem siv los tswj cov kev taw qhia ntawm cov cua sov hauv ib lub cuab yeej. Piv txwv li, hauv 3D - integrated semiconductor pob, peb tuaj yeem siv qhov qis perpendicular thermal conductivity ntawm graphite los tiv thaiv tshav kub los ntawm kev sib kis mus rau qhov chaw tsis xav tau.
Peb Graphite Spare Parts rau Ion Implantation yog tsim los tswj qhov siab - qhov kub thiab txias cuam tshuam nrog cov txheej txheem ion implantation. Lub siab thermal conductivity ntawm graphite pab kom cov khoom txias thiab ua kom muaj kev ruaj ntseg ntawm cov txheej txheem ion implantation.
Mechanical Properties
Cov qauv lattice ntawm graphite cuam tshuam rau nws cov khoom siv kho tshuab thiab. Lub zog van der Waals tsis muaj zog ntawm cov khaubncaws sab nraud povtseg ua graphite kuj mos thiab nkig nyob rau hauv cov kev taw qhia perpendicular. Txawm li cas los xij, nyob rau hauv lub dav hlau ntawm cov khaubncaws sab nraud povtseg, covalent bonds ntawm cov pa roj carbon atoms muab graphite ib co℃ntawm lub zog thiab nruj.
Qhov no anisotropy nyob rau hauv txhua yam khoom yuav siv tau nyob rau hauv semiconductor manufacturing. Piv txwv li, thaum machining graphite qhov chaw rau cov txheej txheem semiconductor, peb yuav tsum coj mus rau hauv tus account cov kev taw qhia ntawm cov txheej. Machining raws cov khaubncaws sab nraud povtseg feem ntau yooj yim dua vim tias cov khoom siv ua raws li cov lus qhia no.
Graphite kuj tseem siv tau los ua cov khoom siv hauv cov khoom siv semiconductor. Nws siab hauv - lub dav hlau lub zog tuaj yeem siv los txhawb lwm yam khoom siv hauv ib lub cuab yeej. Nyob rau tib lub sijhawm, lub zog qis qis tuaj yeem siv los tsim cov ntsiab lus tsis muaj zog lossis tawg - cov seem hauv ib lub cuab yeej kom yooj yim sib dhos lossis disassembly.
Yog tias koj tab tom nrhiav rau siab - zoo graphite qhov chaw rau cov txheej txheem semiconductor, peb Graphite Mould Parts rau Semiconductor Txheej Txheem yog qhov kev xaiv zoo. Cov khoom no yog precision - machined los ua kom zoo dua ntawm cov khoom tshwj xeeb ntawm graphite.
Kev cuam tshuam rau Semiconductor Device Performance
Cov khoom ntawm graphite semiconductors, uas feem ntau txiav txim siab los ntawm cov qauv lattice, muaj kev cuam tshuam ncaj qha rau kev ua haujlwm ntawm cov khoom siv semiconductor.
Nyob rau hauv cov nqe lus ntawm kev ceev, lub siab nyob rau hauv - dav hlau hluav taws xob conductivity ntawm graphite muaj peev xwm ua rau kom cov hloov ceev ntawm transistors. Kev hloov pauv ceev dua txhais tau tias cov khoom siv semiconductor tuaj yeem ua cov ntaub ntawv sai dua, uas yog qhov tseem ceeb rau cov ntawv thov xws li siab - kev ua haujlwm suav thiab kev sib txuas lus.
Lub thermal zog ntawm graphite kuj ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov cuab yeej. Los ntawm cov cua kub kom zoo, graphite tuaj yeem tiv thaiv overheating thiab xyuas kom meej tias cov cuab yeej ua haujlwm ntawm qhov kub thiab txias. Qhov no ua rau muaj kev ntseeg tau zoo dua thiab ntev dua lub neej ntawm cov khoom siv semiconductor.
Cov khoom siv hluav taws xob ntawm graphite tuaj yeem cuam tshuam rau kev tsim khoom thiab ua haujlwm ntev ntawm cov khoom siv semiconductor. Lub peev xwm los tshuab graphite qhov chaw yooj yim thiab siab hauv - lub dav hlau lub zog tuaj yeem ua rau tus nqi ntau dua - cov txheej txheem tsim tau zoo thiab txhim khu kev qha.
Xaus
Hauv kev xaus, cov qauv lattice ntawm graphite semiconductors muaj kev cuam tshuam loj heev rau lawv cov hluav taws xob, thermal, thiab cov khoom siv kho tshuab. Cov khoom no, nyob rau hauv lem, muaj kev cuam tshuam loj rau kev ua tau zoo, kev tsim khoom, thiab kev ntseeg siab ntawm cov khoom siv semiconductor.
Raws li tus neeg muag khoom ntawm graphite semiconductors, peb nkag siab qhov tseem ceeb ntawm cov khoom no thiab tau cog lus tias yuav muab siab - zoo graphite cov khoom uas siv tag nrho cov txiaj ntsig ntawm cov qauv lattice tshwj xeeb ntawm graphite. Txawm hais tias koj tab tom nrhiav graphite pwm, cov khoom seem, lossis cov pwm pwm rau cov txheej txheem semiconductor, peb muaj cov khoom lag luam thiab kev txawj ntse kom tau raws li koj xav tau.
Yog tias koj xav paub ntxiv txog peb cov khoom siv graphite semiconductor lossis muaj lus nug txog yuav ua li cas graphite tuaj yeem siv rau hauv koj daim ntawv thov semiconductor, tsis txhob yig tiv tauj. Peb nyob ntawm no los pab koj ua qhov zoo tshaj plaws ntawm graphite semiconductors.
Cov ntaub ntawv
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Singh, J. (2003). Cov khoom siv semiconductor: kev taw qhia. John Wiley & Tub.
Ashcroft, NW, & Mermin, ND (1976). Lub xeev physics. Holt, Rinehart thiab Winston.