PEB (Plasma Enhanced Chemical Vapor Deposition) yog cov txheej txheem nyias zaj duab xis tso tawm dav siv nyob rau hauvKev lag luam semiconductor. Nws muab cov ntsiab lus ntawm cov tshuaj vapor deposition (CVD) nrog plasma technology los tsim cov yeeb yaj kiab zoo tshaj plaws thiab tswj lawv cov yam ntxwv. Tsis zoo li CVD ib txwm muaj, PECVD siv cov ntshav plasma los txhim kho cov txheej txheem tso nyiaj, tso cai rau kev tso cov ntaub ntawv ntau dua ntawm qhov kub thiab txias.
PECVD txoj cai
PECVD thev naus laus zis siv cov ntshav plasma uas tsis muaj qhov kub thiab txias los ua kom lub ntsej muag tawm ntawm lub cathode ntawm cov khoom tso tawm hauv qab qis. Qhov hluav taws xob tso tawm no lossis lwm yam khoom siv cua sov tuaj yeem nce qhov ntsuas kub ntawm cov qauv mus rau qib uas tau txiav txim siab thiab tom qab ntawd qhia txog tus nqi tswj cov txheej txheem roj. Cov roj no dhau los ua cov tshuaj lom neeg thiab cov ntshav plasma, thaum kawg tsim cov khoom nyias nyias ntawm cov qauv.
Plasma enhanced chemical vapor deposition (PECVD) yog ib lub tshuab tsim khoom siv ntau yam uas siv cov ntshav plasma txhim kho cov kev ua haujlwm ntawm cov organic thiab inorganic chemical monomers los tso cov yeeb yaj kiab nyias. Qhov kev nce hauv reactivity no ua rau siv ntau yam ntaub ntawv ua ntej, suav nrog cov kev lig kev cai suav tias yog inert. PECVD tuaj yeem siv cov khoom ua ntej hauv cov khoom, kua, lossis roj rau hauv cov ntawv yooj yim, sai, thiab hnyav-dawb tsim cov txheej txheej nyias nyias.
Plasma tiam txheej txheem
Lub plasma hauv PECVD txheej txheem feem ntau yog tsim los ntawm kev siv hluav taws xob rau cov electrodes embedded hauv cov pa roj tsawg. PECVD tshuab tuaj yeem tsim cov ntshav los ntawm ntau txoj hauv kev, suav nrog xov tooj cua zaus (RF), nruab nrab zaus (MF), pulsed tam sim no, lossis ncaj qha tam sim no. Lub zog muab los ntawm lub zog hluav taws xob tuaj yeem qhib cov pa roj lossis vapors, tsim cov electrons, ions, thiab nruab nrab dawb radicals.
PECVD khoom
PECVD tuaj yeem tso ntau yam ntaub ntawv, suav nrog tab sis tsis txwv rau
Silicon Nitride (SiN): Silicon nitride yog cov khoom siv PECVD feem ntau paub txog nws cov khoom zoo dielectric, siab thermal stability, thiab qis conductivity. Nws tuaj yeem siv rauCov khoom siv semiconductor, cov khoom siv biomedical, thiaboptical txheej.
Silicon dioxide (SiO2): Silicon dioxide yog lwm cov khoom siv feem ntau tso rau hauv PECVD. Nws yog cov khoom siv pob tshab dielectric nrog cov khoom siv hluav taws xob zoo. Silicon dioxide yog dav siv nyob rau hauv semiconductor manufacturing, optical coatings, thiab tiv thaiv txheej rau corrosion thiab hydrophobicity.
Amorphous silicon (a-Si): Amorphous silicon yog ib hom amorphous silicon nrog cov khoom siv hluav taws xob tshwj xeeb. Nws tuaj yeem siv los tsimnyias zaj duab xis solar cells, photodetectors, thiab tso saib cov khoom siv.
Pob zeb diamond zoo li cov pa roj carbon (DLC): DLC yog cov khoom siv carbon uas muaj cov yam ntxwv zoo ib yam li pob zeb diamond, suav nrog qhov siab hardness thiab tsis tshua muaj kev sib txhuam. PECVD yog siv los tso DLC txheej txheej thiab siv rau hauv thaj chaw xws li cov cuab yeej txiav, hnav-resistant nto, thiab biomedical implants.
Hlau: PECVD kuj tuaj yeem siv los tso cov yeeb yaj kiab hlau xws li txhuas thiab tooj liab. Cov yeeb yaj kiab no tuaj yeem siv rau kev sib txuas hluav taws xob, hluav taws xob, thiab lwm yam khoom siv hluav taws xob.
PECVD txheej txheem parameter
Cov txheej txheem tseem ceeb ntawm PECVD suav nrog
Siab: Lub siab nyob rau hauv sedimentation chamber tuaj yeem cuam tshuam qhov nruab nrab txoj kev dawb thiab sedimentation tus nqi ntawm cov reactants.
Kub: Qhov kub ntawm lub substrate tuaj yeem cuam tshuam rau qhov chaw txav mus los ntawm cov reactants thiab crystallinity ntawm deposited films.
Gas flow rate: Tus nqi ntws ntawm cov roj precursor yuav cuam tshuam qhov muaj pes tsawg leeg thiab cov yam ntxwv ntawm cov yeeb yaj kiab tso.
Plasma zog: Plasma zog cuam tshuam lub zog thiab deposition tus nqi ntawm cov ntshav.
Kev ua kom zoo ntawm cov txheej txheem PECVD yog qhov tseem ceeb rau kev ua tiav cov yam ntxwv ntawm cov yeeb yaj kiab uas xav tau. Piv txwv li, tus nqi deposition tuaj yeem nce ntxiv los ntawm kev ua kom lub zog plasma lossis cov pa roj ua ntej. Lub thickness ntawm zaj duab xis tuaj yeem tswj tau los ntawm kev kho lub sijhawm tso nyiaj. Cov muaj pes tsawg leeg ntawm cov yeeb yaj kiab nyias tuaj yeem tswj tau los ntawm kev kho tus nqi ntws ntawm cov roj ua ntej. Los ntawm kev txhim kho cov txheej txheem tsis zoo, PECVD tuaj yeem siv los tsim cov yeeb yaj kiab zoo rau ntau daim ntawv thov.
Qhov zoo ntawm PECVD
Kev ua haujlwm kub qis: PECVD tuaj yeem tso cov yeeb yaj kiab nyias ntawm qhov kub thiab txias qis dua li cov txheej txheem CVD. Qhov no yog qhov tseem ceeb rau kev tsim khoom semiconductor vim tias qhov kub thiab txias tuaj yeem ua rau cov khoom siv raug puas.
Cov yeeb yaj kiab zoo sib xws: PECVD tuaj yeem tsim cov yeeb yaj kiab zoo sib xws nrog cov tuab tuab thiab muaj pes tsawg leeg ntawm lub substrate nto. Qhov kev sib txuam no yog qhov tseem ceeb rau kev ua kom cov cuab yeej ua tau zoo thiab kev ntseeg tau.
High deposition npaum li cas: Piv nrog ib txwm CVD technology, PECVD muaj peev xwm muab ib tug ntau dua deposition tus nqi, yog li ua tau zoo thiab kev lag luam ntawm cov khoom siv semiconductor.
Ntau yam ntawm cov ntaub ntawv: PECVD tuaj yeem tso ntau yam ntaub ntawv, suav nrog insulators, conductors, thiab semiconductors. Qhov no versatility ua rau nws haum rau ntau yam kev siv nyob rau hauv semiconductor manufacturing.
Hauv kev tswj cov txheej txheem: PECVD cov tshuab feem ntau muaj peev xwm saib xyuas cov txheej txheem hauv-situ, uas tuaj yeem kho qhov kev tso nyiaj tsis zoo hauv lub sijhawm tiag tiag thiab ua kom zoo dua cov yeeb yaj kiab.
Daim ntawv thov PECVD
Plasma enhanced chemical vapor deposition (PECVD) yog cov txheej txheem ntau yam kev tso tawm uas tso cai rau kev tswj xyuas cov txheej txheem tso tawm, uas ua rau cov khoom nyias nyias nrog cov khoom siv. Cov tshuab no tau siv dav hauv ntau yam kev lag luam, suav nrog tab sis tsis txwv rau
Semiconductor Manufacturing: PECVD yog siv dav hauv kev tsim cov khoom siv hluav taws xob semiconductor thiab yog txoj kev tso nyiaj tseem ceeb rau lub rooj vag dielectrics, passivation txheej, thiab cov khoom siv sib txuas.
Solar cell ntau lawm: PECVD plays lub luag haujlwm tseem ceeb hauv kev tsim cov hnub ci hlwb thiab cov khoom siv hluav taws xob optoelectronic. Nws muaj peev xwm tso cov yeeb yaj kiab nyias thiab tsis sib xws rau ntawm thaj chaw loj, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev tsim cov tshuaj tiv thaiv kev cuam tshuam thiab lwm cov txheej txheem ua haujlwm rau hnub ci vaj huam sib luag.
Cov txheej txheem kho qhov muag: PECVD tuaj yeem siv los tsim cov txheej txheem kho qhov muag, suav nrog cov txheej txheem hauv cov looj tsom iav dub, cov khoom siv kho qhov muag xim xim, thiab cov duab thaij duab. Los ntawm kev tswj cov ntshav plasma tsis meej, qhov ntsuas qhov cuam tshuam thiab lwm yam khoom siv kho qhov muag ntawm cov yeeb yaj kiab tso tawm tuaj yeem raug kho kom zoo los tsim cov txheej txheem nrog cov khoom siv kho qhov muag.
Cov cuab yeej siv tshuaj biomedical: PECVD tuaj yeem siv los tsim cov khoom siv biomedical xws li kev cog qoob loo kho mob. PECVD tuaj yeem tso cov txheej txheem biocompatible high-purity coatings nrog cov yam ntxwv tshwj xeeb, ua rau nws muaj kev xaiv zoo rau cov ntawv thov uas xav tau biocompatibility thiab ua haujlwm.
Kev Tiv Thaiv Kev Tiv Thaiv: Pecvd Cov Lus Dens Nano Zaj Duab Xis Tiv Thaiv ntawm cov khoom siv hydrooent, uas muaj hmoov av, oxidation tsis kam, thiab tawm tsam kev laus, muab cov kev sib txawv kev tiv thaiv rau cov coated tivthaiv.
Yav tom ntej Trends ntawm PECVD
Nyob rau hauv lub neej yav tom ntej, PECVD cia siab tias yuav ua lub luag haujlwm tseem ceeb hauv kev lag luam hluav taws xob. Qee cov ntawv thov thiab kev nce qib tau ua rau muaj kev loj hlob ntawm PECVD kev ua lag luam, suav nrog
Cov ntaub ntawv tshiab: PECVD tuaj yeem siv los tso ntau yam ntaub ntawv, suav nrog hlau, semiconductors, dielectrics, thiab polymers. Qhov kev ua tau zoo no ua rau PECVD qhov kev xaiv zoo rau ntau yam kev siv xws li ntim khoom siab heev, optoelectronics, thiab microelectronics.
Ua ke nrog lwm cov txheej txheem tso nyiaj: PECVD tuaj yeem ua ke nrog lwm cov txheej txheem tso nyiaj xws li lub cev vapor deposition (PVD) thiab atomic txheej deposition (ALD) los tsim cov txheej txheem ntau txheej. Los ntawm kev sib koom ua ke no, cov khoom siv nrog cov yam ntxwv tshwj xeeb thiab kev ua tau zoo dua tuaj yeem tsim tau.
Kev tshawb fawb thiab kev tsim kho: Kev tshawb fawb thiab kev txhim kho txuas ntxiv ua haujlwm feem ntau yog tsom rau kev txhim kho kev ua haujlwm ntawm PECVD systems thiab nthuav dav lawv daim ntawv thov. Qhov kev tshawb fawb no xav tias yuav tsim cov txheej txheem PECVD tshiab thiab cov ntaub ntawv, ua kom muaj kev tsim cov cuab yeej siv txuas ntxiv mus.
Nws cia siab tias PECVD kev ua lag luam yuav muaj kev loj hlob tseem ceeb hauv xyoo tom ntej. Cov yam tseem ceeb uas ua rau txoj kev loj hlob no suav nrog kev xav tau ntau ntxiv rau cov khoom siv hluav taws xob siab, kev tsim cov khoom siv tshiab thiab cov txheej txheem, thiab kev sib koom ua ke ntawm PECVD nrog rau lwm cov thev naus laus zis tso tawm.
