Liboto tsa potoloho tse hatisitsoeng (PCBs) li theha mokokotlo oa lisebelisoa tsa sejoale-joale tsa elektroniki, tse nolofalletsang puisano e se nang moeli lipakeng tsa likarolo. Ho sireletsa litsamaiso tsena tse rarahaneng ho bohlokoa ho netefatsa ts'ebetso ea tsona le bophelo bo bolelele. Lintlha tsa tikoloho joalo ka mongobo, lerōle le lik'hemik'hale li ka theola li-PCB ha nako e ntse e ea, e leng se lebisang ho hloleheng lits'ebetsong tsa bohlokoa. Vacuum deposition coating e fana ka tharollo e tšepahalang ka ho theha lera le sireletsang le sireletsang PCB ho tsoa litšokelong tsa kantle. Mokhoa ona o tsoetseng pele o matlafatsa nako e telele 'me o netefatsa ts'ebetso e tsitsitseng, esita le maemong a thata.
Litsela tsa bohlokoa
Ho roala ka vacuum ho boloka li-PCB li sireletsehile metsing, litšila le lik'hemik'hale. Sena se etsa hore li tšoarelle nako e telele le ho sebetsa hantle.
Sesebelisoa sa vacuum se thibela litšila ho khomarela nakong ea ho roala. Sena se thusa letlalo ho khomarela hantle le ho lula le lekana.
Ho khetha seaparo se nepahetseng ke sa bohlokoa bakeng sa mocheso o motle le ts'ebetso ea motlakase.
Mekhoa e kang PVD le CVD e molemo bakeng sa litlhoko tse fapaneng tsa PCB.
Ho hlahloba le ho hlahloba li-PCB tse koahetsoeng hangata ho netefatsa hore li sebetsa hantle 'me ha li hlolehe.
Vacuum Deposition Coating ke eng?
Tlhaloso le Mokhoa oa ho sebetsa
Vacuum deposition coating e bolela sehlopha sa lits'ebetso tse tsoetseng pele tse behang likarolo tse tšesaane holim'a maemo a khatello e tlase. Mekhoa ena e sebetsa sebakeng sa vacuum, haholo ka tlase ho khatello ea sepakapaka, ho netefatsa ho nepahala le ho tšoana. Ts'ebetso e ka etsa liphahlo ho tloha ho lera le le leng la athomo ho ea ho limilimithara tse 'maloa tse teteaneng, ho itšetlehile ka kopo. Ho fapana le mekhoa ea khale, mekhoa ea ho kenya vacuum, joalo ka vapor deposition (PVD) le chemical vapor deposition (CVD), e sebelisa mehloli e tiileng, e metsi kapa e nang le khase ho theha likarolo tse sireletsang. Ts'ebetso ena e fapaneng e etsa hore e be e loketseng bakeng sa lits'ebetso tse hlokang lirafshoa tse sebetsang hantle, joalo ka lisebelisoa tsa optical le liboto tsa potoloho tse hatisitsoeng (PCBs).
Karolo ea Vacuum Mokhoeng oa ho Koaela
Tikoloho ea vacuum e bapala karolo ea bohlokoa ho ntlafatseng ts'ebetso ea ho roala. E fokotsa tšilafalo ka ho tlosa litšila tse kang lerole le mongobo, e netefatsa sebaka se hloekileng bakeng sa ho beha. Maemo a tlaase a khatello a boetse a nolofalletsa ho tlosoa ha thepa e feteletseng le lihlahisoa, e leng se etsang hore ho be le ts'ebetso e sebetsang haholoanyane. Ho feta moo, vacuum e lumella taolo e nepahetseng mabapi le karabelo ea lik'hemik'hale, e nolofalletsang ho theha liaparo tse ts'oanang le tsa boleng bo holimo. Melemo ena e etsa hore "vacuum deposition coating" e be khetho e ratoang bakeng sa ho sireletsa li-PCB libakeng tse boima.
Lisebelisoa tse Sebelisitsoeng ho Vacuum Deposition Coating
Ho ka sebelisoa lisebelisoa tse fapaneng ka har'a vacuum deposition coating, e 'ngoe le e' ngoe e khethiloe ho latela thepa e lakatsehang ea lera la ho qetela. Lisebelisoa tse tloaelehileng li kenyelletsa litšepe tse kang platinum le iridium, tse fanang ka nako e telele le ho sebetsa hantle. Li-oxide tsa tšepe tse kang aluminium oxide le titanium dioxide li fana ka khanyetso e phahameng ea ho senya le ho apara. Likhetho tse ling li kenyelletsa nitride ea tšepe, li-carbides le sulfide, tse matlafatsang botsitso ba mocheso le lik'hemik'hale. Li-polymers li boetse li sebelisetsoa lits'ebetso tse ikhethileng, tse fanang ka ts'ireletso e bonolo le e bobebe. Khetho ena e fapaneng ea lisebelisoa e netefatsa hore ho beoa ha vacuum ho ka fihlela litlhoko tse ikhethang tsa liindasteri tse fapaneng.
Melemo ea Vacuum Deposition Coating bakeng sa li-PCB
Ho tšoarella le ho phela nako e telele
Vacuum deposition coat haholo e ntlafatsa ho tšoarella ha li-PCB ka ho theha lera le matla le sireletsang. Lera lena le hanana le ho senyeha ho bakoang ke khatello ea kelello ea mochine, ho netefatsa hore PCB e boloka botšepehi ba eona ka nako. Ho roala ho boetse ho thibela ho senyeha ha holim'a metsi ho tloha ho pepesehela tikoloho, joalo ka mahlaseli a UV le ho fetoha ha mocheso. Ka ho lelefatsa nako ea bophelo ea li-PCB, deposition ea vacuum e fokotsa litšenyehelo tsa tlhokomelo le ho netefatsa ts'ebetso e tšepahalang lits'ebetsong tsa bohlokoa.
Li-PCB tse sa keneleng metsi le ho hanyetsana le mongobo
Vacuum deposition coat e fana ka khanyetso e ikhethang ea mongobo, e etsa hore e be e loketseng ho theha li-PCB tse sa keneleng metsi. Bokhoni ba eona ba ho khomarela libaka tsohle, ho kenyeletsoa libaka tse rarahaneng le tseo ho leng thata ho fihla ho tsona, li netefatsa tšireletso e felletseng. Lesela lena le bobebe ebile le tšesaane ha le kenye bongata bo sa hlokahaleng ho PCB, ho boloka moralo oa eona o kopaneng. Ho feta moo, sekhahla sa phetiso ea mouoane o tlase (MVTR) se fana ka tšireletso e phahameng khahlano le mongobo le ho pepesehela metsi. Ho hanyetsa lik'hemik'hale tse phahameng tsa ho roala ho sireletsa PCB le ho feta tšenyo e bakoang ke metsoako kapa lintho tse senyang. Likarolo tsena li etsa hore vacuum e be khetho e ntle bakeng sa lits'ebetso tse tikolohong e mongobo kapa ea metsing.
Tšireletso ea Lik'hemik'hale le Tikoloho
Ho roala ha vacuum deposition ka katleho ho fokotsa litšokelo tsa lik'hemik'hale le tsa tikoloho tse ka senyang ts'ebetso ea PCB. E sireletsa khahlanong le lintho tse kotsi tse kang hexavalent chromium le cadmium, tse tloaelehileng libakeng tsa indasteri. Mokhoa o laoloang oa ho beha litšila o fokotsa ho hlahisoa ha litšila tse kotsi, e leng se tlatsetsang tikolohong e sireletsehileng le e tsitsitseng ea tlhahiso. Tafole e ka tlase e totobatsa tse ling tsa litšokelo tsa lik'hemik'hale le mekhoa e sebelisoang ho li loantša:
Litšokelo tsa Lik'hemik'hale | Mekhoa ea ho Fokotsa |
|---|---|
Hexavalent Chromium | Vacuum deposition, physical vapor deposition (PVD), low-pressure chemical vapor deposition (LPCVD) |
Cadmium | Nts'etsopele ea lisebelisoa le lits'ebetso tse ncha |
Litšila Tse Kotsi | E fokotsehile ka mekhoa e laoloang ea deposition |
Theknoloji ena e tsoetseng pele ea ho roala e tiisa hore li-PCB li lula li sebetsa esita le maemong a mabifi a lik'hemik'hale kapa a phephetsang tikoloho.
Thepa e ntlafalitsoeng ea Thermal le Motlakase
Ho roala ha vacuum deposition ho ntlafatsa thepa ea motlakase le ea motlakase ea li-PCB, e leng ho etsang hore li tšepahale haholoanyane lits'ebetsong tse boima. Ho roala ho etsa lera le ts'oanang le ntlafatsang ho qhala mocheso ho pholletsa le sebaka sa PCB. Tšobotsi ena e thibela ho futhumala ha libaka, tse ka senyang likarolo kapa tsa fokotsa bokhoni ba tsona. Ka ho boloka ts'ebetso e nepahetseng ea mocheso, ho roala ho tiisa nako e telele ea mekhoa ea elektronike.
Thepa ea motlakase ea li-PCB le eona e rua molemo haholo ho tloha ho vacuum deposition coating. Mokhoa ona o fokotsa mefokolo ea holim'a metsi le litšila, tse ka sitisang ho tsamaisa motlakase. Sebaka se boreleli se fokotsa khanyetso, se lumellang hore ho be le phallo e sebetsang ea hona joale. Ntlafatso ena ke ea bohlokoa ka ho khetheha lipotolohong tse nang le maqhubu a phahameng, moo esita le khanyetso e nyane e ka amang ts'ebetso. Ho roala ho boetse ho fana ka ts'ebetso e ntle haholo, e sireletsang likarolo tse tebileng ho tsoa tšitiso ea motlakase kapa li-circuits tse khutšoane.
Lisebelisoa tse sebelisoang ho koahela vacuum deposition li kenya letsoho linthong tsena tse ntlafalitsoeng. Metal nitrides le oxides, mohlala, li fana ka conductivity e phahameng ea mocheso le khanyetso ea lik'hemik'hale. Lisebelisoa tsena li etsa bonnete ba hore PCB e lula e tsitsitse tlas'a mocheso o feteletseng le tikoloho e thata ea lik'hemik'hale. Tšebeliso e nepahetseng ea ho roala e lumella hore ho be le ts'ebetso e tsitsitseng, esita le ka meralo e rarahaneng kapa e rarahaneng ea PCB.
Liindasteri tse kang sefofane, likoloi, le lisebelisoa tsa motlakase tsa bareki li itšetlehile ka thepa ena e ntlafalitsoeng ho finyella litekanyetso tse thata tsa tshebetso. Bokhoni ba ho kopanya taolo ea mocheso le ts'ebetso ea motlakase bo etsa hore ho beoa ha vacuum deposition e be tharollo ea bohlokoa bakeng sa li-PCB tsa sejoale-joale. Ka ho sebetsana le mathata a mabeli a mocheso le motlakase, theknoloji ena e tšehetsa nts'etsopele ea lisebelisoa tsa elektronike tse tsoetseng pele le tse ka tšeptjoang.
Keletso: Ho khetha thepa ea ho roala e nepahetseng ho bohlokoa bakeng sa ho fihlela ts'ebetso e lakatsehang ea mocheso le motlakase. Ho buisana le litsebi ho ka thusa ho fumana tharollo e molemohali bakeng sa likopo tse khethehileng.
Mefuta ea Mahlale a Vacuum Deposition bakeng sa li-PCB
Boemo ba mouoane oa 'mele
Physical Vapor Deposition (PVD) ke mokhoa o sebelisoang haholo oa ho roala vacuum deposition o kenyelletsang phetisetso ea 'mele ea thepa ho tloha mohloling o tiileng kapa oa metsi ho ea holim'a PCB. Ts'ebetso ena e etsahala ka phaposing ea vacuum, moo thepa e fetoloang mouoane ka mekhoa e kang mouoane kapa ho fafatsa. Thepa e nang le mouoane e ntan'o ikamahanya le PCB, e etsa seaparo se tšesaane, se tšoanang.
PVD e fana ka taolo e babatsehang holim'a botenya le sebopeho sa ho roala, ho etsa hore e tšoanelehe bakeng sa lisebelisoa tse hlokang ho nepahala. E matlafatsa botsitso le botsitso ba mocheso oa li-PCB, ho netefatsa ts'ebetso e tšepahalang libakeng tse hlokang. Liindasteri tse kang sefofane le likoloi hangata li itšetlehile ka PVD bakeng sa bokhoni ba eona ba ho etsa likarolo tsa tšireletso tsa boleng bo phahameng.
K'hemik'hale ea Vapor Chemical
Chemical Vapor Deposition (CVD) ke mokhoa o mong o tsoetseng pele oa vacuum deposition o sebelisang karabelo ea lik'hemik'hale ho beha lesela le sireletsang ho li-PCB. Ts'ebetsong ena, li-precursors tsa gaseous li kenngoa ka phaposing ea vacuum, moo li itšoarang holim'a PCB ho etsa seaparo se tiileng.
CVD e fana ka ho tšoana ho ikhethang le ho khomarela, esita le ho lijeometri tse rarahaneng tsa PCB. E sebetsa ka ho khetheha bakeng sa ho etsa liaparo tse nang le lik'hemik'hale tse phahameng le ho hanyetsa mocheso. Mokhoa ona o sebelisoa hangata liindastering tse hlokang tšireletso e matla, joalo ka lisebelisoa tsa bongaka le lisebelisoa tsa elektroniki tsa indasteri. Bokhoni ba ho hlophisa thepa ea ho roala ka sebopeho sa lik'hemik'hale bo etsa hore CVD e be khetho e fapaneng bakeng sa lits'ebetso tse fapaneng.
Parylene Coating le Lisebelisoa tsa eona
Ho roala ha Parylene ho hlahella e le mokhoa o ikhethang oa ho beha li-vacuum ka lebaka la bokhoni ba eona ba ho fana ka tšireletso e felletseng bakeng sa li-PCB. Ho fapana le PVD le CVD, parylene e sebelisoa ka mokhoa oa polymerization oa mouoane. Sena se tiisa hore ho roala ho khomarela ka mokhoa o ts'oanang libakeng tsohle, ho kenyeletsoa mathōko a bohale le likarolo tse rarahaneng.
Parylene e fana ka melemo e mengata:
E bobebe ebile e tšesaane, e eketsa bongata bo fokolang ho li-PCB.
Ho roala ho fana ka khanyetso e phahameng ea lik'hemik'hale, ho sireletsa khahlanong le li-solvents le lintho tse senyang.
Sekhahla sa eona sa phetisetso ea mouoane o tlase se tiisa tšireletso e ntle ea mongobo.
Parylene ha e na masoba, e etsa lera le se nang likoti tse sireletsang.
E fana ka insulation e phahameng ea motlakase, e nang le matla a dielectric a fetang 5,000 volts ka mil.
Thepa ena e etsa hore parylene e be e loketseng lits'ebetso tsa lisebelisoa tsa bongaka, sefofane le lisebelisoa tsa elektroniki tsa bareki. Ponaletso ea eona e thusa ho netefatsa boleng, athe tlhaho ea eona e sa sebetseng e tiisa botsitso libakeng tse fapaneng. Ho phaella moo, ho roala ha parylene ho bonolo ho lokisoa, ho lumella libaka tse senyehileng hore li rarolloe ntle le ho tlosa lera lohle.
Ho ikamahanya le maemo le ho tšepahala ha Parylene ho etsa hore e be khetho e ratoang bakeng sa kopano ea PCB liindastering tse hlokang liphahlo tse sebetsang hantle.
Papiso ea PVD, CVD, le Parylene Coating
Physical Vapor Deposition (PVD), Chemical Vapor Deposition (CVD), le ho roala ha parylene ke mekhoa e meraro e hlahelletseng ea ho roala vacuum, e 'ngoe le e' ngoe e fana ka melemo e ikhethang bakeng sa ho sireletsa li-PCB. Ho utloisisa phapang ea bona ho thusa ho khetha mokhoa o loketseng ka ho fetisisa bakeng sa lits'ebetso tse ikhethileng.
PVD e ipabola ka ho etsa lifilimi tse hloekileng, tse tšoanang le tse khomarelang. E loketse lits'ebetso tse hlokang taolo e nepahetseng holim'a thepa ea filimi e tšesaane, joalo ka lisebelisoa tsa semiconductor le likhalase tsa khalase. Ts'ebetso ena e kenyelletsa ho futhumala ha lintho tse tiileng kapa tsa metsi ka phaposing ea vacuum, ebe e kenella holim'a PCB. Mokhoa ona o tiisa nako e telele le botsitso ba mocheso, o etsa hore e be khetho e ratoang bakeng sa liindasteri tse kang sefofane le likoloi.
CVD, ka lehlakoreng le leng, e tsamaellana haholo, e e nolofalletsa ho koahela lijeometri tse rarahaneng le meaho e rarahaneng ea PCB ka nepo. E sebelisa li-precursors tsa lik'hemik'hale tse arabelang holim'a substrate ho etsa seaparo se tiileng. Mokhoa ona o fana ka ho khomarela ka tsela e ikhethang le ho tšoana, esita le libakeng tse thata. CVD e sebelisoa haholo indastering ea semiconductor bakeng sa lifilimi tse tšesaane tse sebetsang hantle haholo le lits'ebetso tse ling tse hlokang.
Ho roala ha Parylene ho hlahella ka bokhoni ba eona ba ho fana ka tšireletso e felletseng. Ho fapana le PVD le CVD, parylene e sebelisoa ka mokhoa oa polymerization oa mouoane. Sena se tiisa ho koaheloa ka mokhoa o ts'oanang, esita le metseng e bohale le libakeng tse patehileng. Parylene e fana ka khanyetso e phahameng ea mongobo, botsitso ba lik'hemik'hale, le ho kenya motlakase. Boemo ba eona bo bobebe ebile bo se na likoti bo etsa hore e be ea bohlokoa haholo bakeng sa lisebelisoa tsa bongaka, sefofane le lisebelisoa tsa elektroniki tsa bareki.
Lewa | Likopo tsa bohlokoa |
|---|---|
PVD | Lisebelisoa tsa semiconductor, liphanele tsa letsatsi tse tšesaane-filimi, liaparo tsa khalase |
CVD | Lifilimi tse tšesaane tse sebetsang hantle haholo, indasteri ea semiconductor |
Parylene | Lisebelisoa tsa bongaka, sepakapaka, lisebelisoa tsa elektroniki tsa bareki |
Mokhoa o mong le o mong o na le matla a oona. PVD e fana ka ho nepahala, CVD e ipabola ka ho lumellana, 'me parylene e fana ka mefuta-futa e ke keng ea lekanngoa le tšireletso. Ho khetha mokhoa o nepahetseng ho itšetlehile ka litlhoko tse khethehileng tsa kopano ea PCB.
Ts'ebetso ea Kopo ea Kopo ea Vacuum Deposition
Ho lokisa PCB Surface
Ho lokisa bokaholimo ba PCB ke mohato oa bohlokoa ho netefatsa katleho ea "vacuum deposition coating". Sebaka se hloekileng le se lokiselitsoeng hantle se khothalletsa ho khomarela hantle le ho tšoana ha lera le sireletsang. Mokhoa oa ho lokisa o kenyelletsa mehato e 'maloa e nepahetseng:
Ho hloekisa Liphanele: Liphanele li hloekisoa ka botlalo ho tlosa litšila tse kang lerole, mafura kapa masala.
Tšebeliso ea Mask ea Solder: Enke ea epoxy solder mask e sebelisoa mahlakoreng ka bobeli a PCB ho hlalosa libaka tse hlokang tšireletso.
Tšusumetso ea Leseli la UV: Mapolanka a pepesehela leseli la UV ka filimi ea setšoantšo sa solder mask, e thatafatsa likarolo tse koahetsoeng.
Ho Tlosa Likarolo Tse sa Thatafatsoang: Libaka tse sa thatafatsoang lia tlosoa, li siea mohlala o lakatsehang o ntse o le teng.
Ho phekola mask a solder: PCB e kenngoa ka ontong ho phekola mask a solder, ho etsa bonnete ba hore e tšoarella.
Surface Qetella Kopo: Mokhoa oa ho roala lik'hemik'hale o sebelisa khauta kapa silevera ho matlafatsa solderability. Boemo ba moea o chesang bo tiisa liphasete tse tšoanang bakeng sa kopano.
Mehato ena e theha sebaka se hloekileng, se loketseng ho sebelisoa ha parylene coating kapa mekhoa e meng ea vacuum deposition.
Tlhophiso ea Phaposi ea Vacuum
Tlhophiso ea kamore ea vacuum e bohlokoa bakeng sa ho fihlela tikoloho e laoloang e hlokahalang bakeng sa ho roala ha vacuum deposition. Litsebi li qala ka ho etsa bonnete ba hore kamore eo ha e na litšila. Ebe ba kenya li-PCB tse lokiselitsoeng ho lisebelisoa tse khethehileng tse etselitsoeng ho li boloka li sireletsehile nakong ea ts'ebetso. Kamore e koetsoe, 'me moea oa ntšoa ho etsa tikoloho e nang le khatello e tlase. Vacuum ena e fokotsa litšila 'me e etsa hore ho be le taolo e nepahetseng holim'a ts'ebetso ea deposition. Li-sensor le litsamaiso tsa ho beha leihlo li netefatsa maemo a nepahetseng, joalo ka mocheso le khatello, li bolokiloe nakong eohle ea ts'ebetso.
Ho beoa ha Mekhahlelo ea Tšireletso
Karolo ea deposition e kenyelletsa ho sebelisa lera le sireletsang, joalo ka parylene, holim'a PCB. Tabeng ea ho roala ha parylene, ts'ebetso e qala ka vaporization ea parylene dimer. Lintho tse entsoeng ka mouoane li feta pyrolysis, li e pshatla hore e be li-monomers tse sebetsang. Li-monomers tsena li etsa polymeri ha li kopana le PCB, li etsa seaparo sa junifomo, se se nang likoti. Mokhoa ona o netefatsa tšireletso e felletseng, esita le ho li-geometri tse rarahaneng le lithako tse bohale. Lera le hlahisoang le fana ka khanyetso e ikhethang ea mongobo, botsitso ba lik'hemik'hale, le ho kenya motlakase. Hang ha deposition e phethiloe, kamore eo e ea ntša moea, 'me li-PCB tse koahetsoeng li ntšoa ka hloko hore li hlahlojoe.
Hlokomela: Ts'ebetso e nepahetseng nakong ena ke ea bohlokoa ho thibela tšenyo ea lesela le sa tsoa sebelisoa.
Tlhahlobo ea Post-Coating le Tlhahlobo
Tlhahlobo le liteko tsa kamora ho koaheloa li netefatsa boleng le ts'epahalo ea coat ea vacuum e kentsoeng ho li-PCB. Mekhoa ena e netefatsa hore lera le sireletsang le finyella litekanyetso tse hlokahalang 'me le sebetsa kamoo le reriloeng kateng lits'ebetsong tse fapaneng.
Litsebi li sebelisa mekhoa e 'maloa ho lekola ho ts'oana ha seaparo le ho khomarela. Litekanyo tsa angle angle ke mokhoa o tloaelehileng. Mokhoa ona o kenyelletsa ho beha lerotholi la mokelikeli oa bio-inert holim'a metsi a koahetsoeng le ho shebella hore na o sebelisana joang le thepa. Tsela eo metsi a nang le lifaha kapa ho ata ka eona e fana ka lintlha tsa boleng ba bokaholimo. Litekanyo tse ngata ho pholletsa le bokaholimo ba PCB li ka senola ho se lumellane ts'ebelisong ea ho roala, ho netefatsa tšireletso e felletseng.
Ho hloekisa hantle ha substrate pele ho roala ho phetha karolo ea bohlokoa ho finyella liphello tsa boleng bo phahameng. Litšilafalo tse setseng li ka senya ho khomarela le ho tšoana. Ho matlafatsa maqhama, lipeo tse tšesaane kapa li-primer layers hangata li sebelisoa pele ho ts'ebetso e kholo ea ho roala. Likarolo tsena li ntlafatsa ho tšoarella ka kakaretso le ts'ebetso ea filimi e sireletsang.
Tlhahlobo ea kamora ho koaheloa e boetse e kenyelletsa litlhahlobo tse bonoang le tse nyane haholo. Mekhoa ena e lemoha mefokolo e kang masoba, mapetsong, kapa botenya bo sa lekaneng. Mekhoa e tsoetseng pele joalo ka tlhahlobo ea X-ray fluorescence (XRF) e ka sebelisoa ho lekola sebopeho le botenya ba seaparo. Teko ea motlakase e etsa bonnete ba hore seaparo se fana ka mokelikeli o lekaneng 'me ha se kena-kenane le ts'ebetso ea PCB.
Keletso: Tekanyetso ea khafetsa ea lisebelisoa tsa tlhahlobo e netefatsa liphetho tse nepahetseng le tse tšepahalang nakong ea tlhahlobo.
Ka ho kopanya mekhoa ena ea tlhahlobo le liteko, bahlahisi ba ka tiisa hore seaparo sa vacuum deposition se kopana le maemo a indasteri. Mohato ona ke oa bohlokoa bakeng sa ho netefatsa ts'epo le ts'ebetso ea nako e telele ea li-PCB libakeng tse boima.
Maemo a Tšebeliso ea Indasteri bakeng sa Koala ea Vacuum Deposition
Aerospace le Defense
Vacuum deposition coat e phetha karolo ea bohlokoa lefapheng la sefofane le ts'ireletso, moo likarolo li tlamehang ho mamella maemo a feteletseng le lebelo le phahameng. Theknoloji ena e ntlafatsa ho tšoarella le ts'ebetso ea likarolo tsa bohlokoa ka ho fana ka khanyetso le tšireletso khahlanong le khoholeho. Ka mohlala, lirafshoa tsa physical vapor deposition (PVD) li sireletsa likarolo tsa sefofane hore li se ke tsa chesoa ke oxidation, ho netefatsa hore li tšepahala ebile li sireletsehile nakong ea ts'ebetso. Liaparo tsena li boetse li ntlafatsa nako e telele ea likarolo tse pepesehileng tikolohong e thata, joalo ka lienjine tsa jete le li-blade tsa turbine. Ka ho fokotsa ho senya le ho taboha, ho roala ha vacuum deposition ho kenya letsoho ho sireletseha ka kakaretso le katleho ea lisebelisoa tsa sefofane.
Likoloi tsa Elektroniki
Indastering ea likoloi, koae ea vacuum deposition e ntlafatsa ts'ebetso le ts'epahalo ea likarolo tsa elektroniki. Theknoloji ena e thibela ho bola le mafome, e leng litaba tse tloaelehileng libakeng tsa likoloi. E boetse e ntlafatsa ho tšoarella ha likarolo tse joalo ka likaroloana tsa mehala e tsamaisang, li-gaskets tsa exhaust, le li-brake clips. Ho feta moo, li-vacuum coatings li fokotsa mathata a kang screeching brake, ho netefatsa boiphihlelo bo bobebe ba ho khanna. Melemo ena e etsa hore koae ea vacuum e be tharollo ea bohlokoa bakeng sa lisebelisoa tsa elektroniki tsa likoloi tsa sejoale-joale, moo ho tšoarella le ts'ebetso e leng bohlokoa.
Mechine ea Bongaka
Vacuum deposition coat ke ea bohlokoa haholo lefapheng la bongaka, moo ho nepahala le ho ts'epahala ho leng bohlokoa haholo. Theknoloji ena e sebelisa lera le tšesaane la tšireletso, hangata ho tloha ho 0.25 ho isa ho 10 microns, ho lisebelisoa tsa bongaka. Ho roala ho tiisa ho tšoana, esita le libakeng tseo ho leng thata ho fihla ho tsona, e leng ntho ea bohlokoa bakeng sa ho boloka katleho ea lisebelisoa. Mohlala, likhoele tsa bio-inert le hydrophilic li ntlafatsa ts'ebetso ea lisebelisoa tse joalo ka li-catheter ka ho ntlafatsa mafura le ho fokotsa khohlano. Likarolo tsena li eketsa matšeliso a mokuli le ho fokotsa ho teneha nakong ea ts'ebeliso. Vacuum deposition coat e boetse e fana ka tšitiso e sireletsang e bolokang botšepehi ba lisebelisoa tsa bongaka libakeng tse boima, ho netefatsa hore li sebetsa nako e telele.
Consumer Electronics
Vacuum deposition coat e fetohile motheo oa nts'etsopele ea lisebelisoa tsa sejoale-joale tsa elektroniki. Theknoloji ena e tsoetseng pele e ntlafatsa ts'ebetso le botle ba lisebelisoa, ho netefatsa hore li fihlela litebello tse phahameng tsa basebelisi ba kajeno. Ts'ebeliso ea eona e akaretsa lihlahisoa tse ngata tse fapaneng, e fanang ka tharollo e lokiselitsoeng bakeng sa ho tšoarella, ts'ireletso le boipiletso ba pono.
Lisebelisoa tsa elektronike tse tšoaroang ka letsoho rua molemo haholo ho tswa ho vacuum deposition coating. Liaparo tse hlakileng tsa UV tse kentsoeng lisebelisoa tsena li fana ka khanyetso e ikhethang, li boloka ponahalo ea tsona e boreleli le ho lelefatsa nako ea tsona ea bophelo. Karolo ena e ntlafatsa boiphihlelo ba mosebelisi ka ho boloka boemo ba sesebelisoa ha nako e ntse e ea.
Mehaho ea polasetiki lisebelisoa tsa elektronike tsa bareki li sebelisa liphahlo tsa conductive ho itšireletsa khahlanong le tšitiso ea motlakase (EMI) le tšitiso ea maqhubu a seea-le-moea (RFI). Tšireletso ena e netefatsa ts'ebetso e se nang moeli ea likarolo tsa kahare, esita le libakeng tse nang le ts'ebetso e phahameng ea motlakase.
Liaparo tse khabisitsoeng phahamisa boipiletso bo botle ba lisebelisoa ha ka nako e le 'ngoe e fana ka thibelo ea tšireletso. Liaparo tsena li eketsa boleng ba lihlahisoa ho lihlahisoa, li etsa hore li khahle bareki ntle le ho senya nako e telele.
Ho feto-fetoha ho fapaneng ha "vacuum deposition coating" ho etsa hore e be ea bohlokoa indastering ea lisebelisoa tsa elektroniki tsa bareki. Ha e sireletse feela likarolo tsa ka hare tsa lisebelisoa empa hape e ntlafatsa likarolo tsa tsona tsa ka ntle, ho netefatsa hore ho na le tekano e phethahetseng pakeng tsa tshebetso le moralo. Ts'ebetso ena e habeli e ts'ehetsa tlhokahalo e ntseng e hola ea lisebelisoa tsa elektroniki tse tšepahalang le tse khahlang ka pono.
Lisebelisoa tsa Indasteri Libakeng tse thata
Tikoloho ea indasteri hangata e pepesetsa lisebelisoa le likarolo tsa eona maemong a feteletseng, ho kenyelletsa le mocheso o phahameng, likhohlano le lintho tse senyang. Vacuum deposition coat e rarolla mathata ana ka ho fana ka tšireletso e matla e netefatsang ts'epo le ts'ebetso ea nako e telele.
Ts'ebetso ena e kenyelletsa ho sebelisa likarolo tse tšesaane tsa thepa tlas'a maemo a vacuum, e matlafatsang khanyetso ho apara, mocheso le khatello ea mochine. Liindasteri tse kang tsa likoloi, tsa sefofane, le tsa bongaka li itšetlehile ka theknoloji ena ho boloka botšepehi ba thepa ea bona. Ka mohlala:
ka indasteri ea likoloi, likarolo tse kang likarolo tsa enjene le lisebelisoa tsa ho ntša metsi li tobana le mocheso o phahameng le libaka tse senyang. Liaparo tse tšoarellang li sireletsa likarolo tsena, li netefatsa ts'ebetso e nepahetseng le bophelo bo bolelele.
The lefapha la sefofane melemo ea liphahlo tse mamellang liphetoho tse potlakileng tsa mocheso le khatello ea mochine. Liaparo tsena li matlafatsa ts'epahalo ea likarolo tsa bohlokoa, joalo ka mahare a turbine le likarolo tsa sebopeho.
ka lefapha la bongaka, lisebelisoa li mamella sterilization khafetsa le tšebeliso. Liaparo tsa vacuum deposition li boloka botšepehi ba tsona, li netefatsa ts'ebetso e tsitsitseng le polokeho ea mokuli.
hlahisitse phephetso | tharollo |
|---|---|
Litsenyehelo tse phahameng tsa capital | Theknoloji ea PVD e ka nka sebaka sa mekhoa e tloaelehileng ea metsi, e fana ka ts'ebetso e phahameng ea ho roala. |
Litaelo tse khethehileng tsa ts'ebetso | Litsamaiso tsa PVD li ka sebetsa ka mocheso o phahameng le li-vacuums, tse hlokang mekhoa ea ts'ebetso e hlophisitsoeng. |
Ho koaheloa ha vacuum deposition ho bonahala ho hlokahala maemong a thata a indasteri. Bokhoni ba eona ba ho matlafatsa ts'ebetso le ts'ebetso e tiisa hore lisebelisoa li sebetsa hantle, esita le tlas'a maemo a boima ka ho fetisisa.
Ho roala ha vacuum deposition ho ipakile e le tharollo ea bohlokoa bakeng sa ho sireletsa li-PCB ho lisebelisoa tsa elektroniki tsa sejoale-joale. Bokhoni ba eona ba ho matlafatsa nako e telele, ho thibela metsi, le ho hanyetsa lik'hemik'hale ho netefatsa ts'ebetso e tšepahalang liindastering tse fapaneng. Ka ho eketsa nako ea bophelo ea li-PCB, theknoloji ena e fokotsa tlhokahalo ea ho lokisoa khafetsa kapa ho nkeloa sebaka, ho fokotsa litšenyehelo tsa nako e telele tsa tlhahiso. Ho tšoana ha seaparo ho boetse ho fokotsa litšila tsa thepa, ho etsa hore e be khetho e tsitsitseng bakeng sa kopano ea PCB.
Mokhoa ona o tsoetseng pele oa ho roala o fana ka botšepehi bo ke keng ba lekanngoa le ho feto-fetoha ha maemo. Likhoebo tse batlang ho ntlafatsa ts'ebetso le bophelo bo bolelele ba li-PCB tsa bona li lokela ho nka ho amohela vacuum deposition coating e le karolo ea bohlokoa ea ts'ebetso ea bona ea tlhahiso.
LBH
Ke eng e etsang hore seaparo sa vacuum se phahametse mekhoa ea setso?
Vacuum deposition coat e netefatsa ho nepahala le ho tšoana ka ho sebetsa sebakeng se laoloang sa vacuum. Ts'ebetso ena e fokotsa tšilafalo le ho ntlafatsa ho khomarela, ho etsa hore e tšepahale ho feta mekhoa ea setso. E boetse e fana ka botsitso bo phahameng, ho hanyetsa mongobo, le ts'ireletso ea lik'hemik'hale, tse bohlokoa bakeng sa ho sireletsa li-PCB lits'ebetsong tse hlokang.
Na koae ea vacuum deposition e ka sebelisoa ho meralo eohle ea PCB?
Ee, koae ea vacuum deposition e ka ikamahanya le meralo e fapaneng ea PCB, ho kenyeletsoa lijeometri tse rarahaneng le methati e bohale. Mekhoa e kang ea ho roala parylene e netefatsa tšireletso e pharaletseng, esita le libakeng tse rarahaneng. Ho feto-fetoha hona ho etsa hore e loketse mefuta e mengata ea liindasteri, ho tloha sebakeng sa sefofane ho ea ho lisebelisoa tsa elektronike tsa bareki.
Koala ea vacuum deposition e ntlafatsa ts'ebetso ea PCB joang?
Vacuum deposition coat e ntlafatsa ts'ebetso ea PCB ka ho ntlafatsa taolo ea mocheso le conductivity ea motlakase. E etsa lera le ts'oanang le lelekang mocheso ka katleho le ho fokotsa mefokolo ea holim'a metsi. Sena se tiisa ts'ebetso e nepahetseng, haholo-holo lipotolohong tsa maqhubu a phahameng, ha se ntse se fana ka insulation ho thibela tšitiso ea motlakase kapa li-circuits tse khutšoane.
Na sekontiri sa vacuum se sireletsa tikoloho?
E, ho roala ha vacuum deposition ke khetho e ntle ea tikoloho. Mokhoa ona o hlahisa litšila tse fokolang tse kotsi ha li bapisoa le mekhoa e tloaelehileng. Tšebeliso ea eona e nepahetseng e fokotsa litšila tsa lintho tse bonahalang, e leng se etsang hore e be khetho e tsitsitseng bakeng sa liindasteri tse ikemiselitseng ho fokotsa tšusumetso ea tsona ea tikoloho.
Ke liindasteri life tse ruang molemo ka ho fetisisa ho tloha ho vacuum deposition coating?
Liindasteri tse kang sefofane, likoloi, lisebelisoa tsa bongaka le lisebelisoa tsa motlakase tsa bareki li rua molemo haholo. Ka mohlala, sebaka sa sefofane se itšetlehile ka sona bakeng sa ho hanyetsa ho apara, ha lisebelisoa tsa bongaka li e sebelisa bakeng sa liphahlo tsa bio-inert. Ho feto-fetoha ha eona ho netefatsa ts'ebetso e ts'epahalang lits'ebetsong tse fapaneng, leha e le maemong a thata.
Keletso: Ikopanye le litsebi tsa indasteri ho fumana mokhoa o motle oa ho beha vacuum bakeng sa ts'ebeliso ea hau e ikhethileng.
