Hauv thaj teb ntawmluam tawm Circuit Board manufacturing, tooj liab txo technology plays lub luag haujlwm tseem ceeb. Nrog rau kev txhim kho txuas ntxiv ntawm cov khoom siv hluav taws xob mus rau miniaturization thiab kev ua haujlwm siab, qhov yuav tsum tau ua rau cov ntawv luam tawm Circuit Board Circuit Court raug thiab layout ceev tau nce zuj zus. Copper txo technology, raws li ib tug tseem ceeb txhais tau tias ntawm shaping meej Circuit Court graphics, yog ua tseem ceeb. Nws tsis tsuas yog ua tau raws li qhov yuav tsum tau ua ntawm kev tsim hluav taws xob hauv Circuit Court, tab sis kuj tseem ua lub luag haujlwm hloov tsis tau hauv kev txhim kho cov khoom lag luam thiab txo cov nqi tsim khoom.
Lub hauv paus ntsiab lus ntawm kev txo cov tooj liab
Cov txheej txheem txo cov tooj liab yog qhov tseem ceeb ntawm kev xaiv tshem tawm cov txheej tooj ntau dhau ntawm tooj liab- clad laminates los ntawm cov txheej txheem tshuaj lom neeg lossis lub cev, yog li tsim cov qauv hauv Circuit Court. Ntawm ntau txoj kev txo cov tooj liab, tshuaj etching tau dhau los ua cov txheej txheem siv dav tshaj plaws vim nws qhov ua tau zoo thiab qhov tseeb. Tshuaj etching siv cov tshuaj tiv thaiv ntawm etching tov thiab tooj liab kom yaj pliaj pliaj txheej. Muaj ntau ntau hom kev etching kev daws teeb meem, nrog rau cov kua qaub etching kev daws teeb meem thiab alkaline etching kev daws teeb meem, txhua tus muaj cov txheej txheem etching tshwj xeeb thiab cov xwm txheej siv tau.
Acid etching daws feem ntau muaj xws li tooj liab chloride, hydrochloric acid, thiab hydrogen peroxide. Thaum lub sij hawm etching txheej txheem, hydrogen peroxide ua raws li ib tug muaj zog oxidant kom oxidize tooj liab rau hauv tooj liab ions. Qhov sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no: Cu+H2O2+2HCl=CuCl2+2H2O; Cov tooj liab ions generated ces ua ke nrog cov chloride ions nyob rau hauv tooj liab chloride los ua ib tug dej-soluble complex, yog li ua tiav qhov kev sib cais thiab tshem tawm ntawm cov tooj liab txheej. Acid etching tov muaj qhov zoo xws li ceev etching ceev thiab zoo etching uniformity, ua rau nws tshwj xeeb tshaj yog haum rau
kev tsim cov kab hluav taws xob zoo.
Cov tshuaj alkaline etching yog tsim los ntawm tooj liab chloride, dej ammonia, thiab ammonium chloride. Lub hauv paus ntsiab lus etching yog tsim los ntawm kev tsim cov complexes ruaj khov ntawm tooj liab ions thiab ammonia, uas txuas ntxiv yaj tooj liab. Cov txheej txheem tshuaj lom neeg muaj raws li hauv qab no: (Cu+4NH3+CuCl2=2 [Cu (NH3) 2] Cl); Lub etching tus nqi ntawm alkaline etching tov yog kuj qeeb, tab sis qhov tseeb etching yog siab, thiab nws yog dav siv nyob rau hauv zus tau tej cov multilayer boards.
Copper txo cov txheej txheem ntws
qauv hloov
Ua ntej pib cov txheej txheem txo cov tooj liab, nws yog ib qho tsim nyog yuav tsum tau hloov cov qauv Circuit Court tsim kom raug rau saum npoo ntawm tooj liab- clad board. Cov txheej txheem no feem ntau ua tiav siv photoresist. Ua ntej, sib npaug ntawm cov zaj duab xis qhuav ntawm tooj liab- clad laminate thiab nias nws nruj ua ke. Tom qab ntawd, cov tooj liab- clad laminate raug rau lub teeb ultraviolet, thiab cov yeeb yaj kiab tsis zoo nrog cov qauv hauv Circuit Court yog muab tso rau saum cov zaj duab xis qhuav. Lub teeb ultraviolet dhau los ntawm cov pob tshab ntawm cov yeeb yaj kiab tsis zoo, ua rau cov tshuaj tiv thaiv photochemical hauv cov yeeb yaj kiab qhuav qis, tsim cov yeeb yaj kiab kho uas yog insoluble hauv cov tshuaj tsim tawm. Cov zaj duab xis qhuav ntawm qhov tsis pom kev tuaj yeem yooj yim yaj los ntawm kev tsim cov tshuaj nyob rau hauv cov kauj ruam tom ntej, yog li nthuav qhia cov qauv Circuit Court uas xav tau kom meej meej ntawm tooj liab - clad board. Kev tswj kom raug ntawm qhov tsis xws li lub sij hawm raug, qhov kub thiab txias yog qhov tseem ceeb hauv cov txheej txheem ntawm kev hloov cov duab. Lub sij hawm raug luv luv heev, cov zaj duab xis qhuav qhuav tsis txaus, thiab cov teeb meem xws li qhov muag plooj thiab cov kab tsis tiav yuav tshwm sim thaum tsim kho; Yog hais tias lub sij hawm raug ntev dhau lawm, nws yuav ua rau ntau tshaj curing ntawm cov zaj duab xis qhuav, nyuaj nyob rau hauv txoj kev loj hlob, thiab txawm residual kua nplaum tom qab kev loj hlob, cuam tshuam cov nyhuv etching tom ntej. Kev hloov tsis raug ntawm qhov kub thiab txias tuaj yeem ua rau xoob adhesion ntawm cov zaj duab xis qhuav thiab tooj liab- clad laminate, ua rau npuas thiab wrinkles, uas kuj muaj qhov cuam tshuam tsis zoo rau qhov raug ntawm cov qauv hloov.
Kev ua haujlwm etching
Tom qab ua tiav cov duab hloov pauv, nws nkag mus rau cov txheej txheem etching tseem ceeb. Raus cov qauv tooj liab-clad laminate rau hauv cov tshuaj etching, uas reacts chemically nrog cov txheej txheem tooj liab uas tsis muaj kev tiv thaiv, maj mam yaj thiab tshem tawm, yog li tsim cov kab ncaj nraim. Thaum lub sij hawm etching txheej txheem, yam xws li cov concentration ntawm cov etching tov, kub, etching lub sij hawm, thiab parameter chaw ntawm cov khoom siv etching tag nrho muaj ib tug tseem ceeb cuam tshuam rau lub etching zoo. Kev siv ntau dhau ntawm cov tshuaj etching thiab ceev etching ceev yuav ua rau muaj kev cuam tshuam loj heev ntawm lub voj voog, thinning lossis txawm tawg ntawm cov kab; Yog tias qhov concentration tsawg dhau, qhov etching ceev yuav qeeb, kev tsim khoom yuav qis, thiab kuj tseem tuaj yeem ua tsis tiav. Cov nyhuv ntawm etching kub ntawm etching tus nqi kuj tseem ceeb heev. Raws li qhov kub thiab txias, qhov etching tus nqi nrawm, tab sis qhov kub thiab txias ntau dhau yuav ua rau cov volatilization thiab decomposition ntawm cov tshuaj etching, thaum ua rau muaj kev pheej hmoo ntawm sab corrosion; Yog tias qhov kub thiab txias tsawg dhau, tus nqi etching yuav nyuaj rau kev ua kom tau raws li qhov yuav tsum tau ua. Kev tswj lub sijhawm etching yog qhov tseem ceeb sib npaug. Yog tias lub sijhawm luv luv, cov txheej tooj liab yuav tsis raug tshem tawm tag nrho; Yog hais tias lub sij hawm ntev dhau lawm, lub etched Circuit Court yuav dhau eroded, cuam tshuam rau qhov tseeb thiab zoo ntawm Circuit Court. Tsis tas li ntawd, cov kev txwv xws li tshuaj tsuag lub siab thiab kev daws teeb meem ceev hauv cov khoom siv etching yuav tsum tau hloov kho kom haum raws li qhov xwm txheej tiag tiag kom ntseeg tau tias cov tshuaj etching tuaj yeem ua tau zoo ib yam ntawm cov tooj liab - clad board, ua tiav cov txiaj ntsig ruaj khov thiab muaj txiaj ntsig zoo.
Kev kho mob tom qab etching
Tom qab etching tiav lawm, impurities xws li etching tov, tshuaj tiv thaiv cov khoom, thiab ib nrab tshem tawm cov zaj duab xis qhuav yuav nyob twj ywm nyob rau saum npoo ntawm tooj liab -clad laminate, yuav tsum tau ib tug series ntawm post- kev ua hauj lwm. Thawj kauj ruam yog cov txheej txheem ntxuav, uas yuav tsum tau yaug nrog ntau cov dej huv kom tshem tawm cov kua nplaum uas seem thiab lwm yam dej- soluble impurities rau ntawm qhov chaw, tiv thaiv lawv kom tsis txhob muaj kev cuam tshuam rau cov txheej txheem tom ntej. Tom ntej no, kev kho kom qhuav tuaj yeem ua tiav los ntawm kev siv cov txheej txheem xws li cua kub kom qhuav lossis huab cua kom qhuav kom ntseeg tau tias qhov chaw ntawm cov tooj liab- clad board yog qhuav tag thiab tsis txhob ya raws cov seem uas yuav ua rau oxidation ntawm txheej tooj liab. Hauv qee qhov kev thov uas yuav tsum tau muaj qhov zoo ntawm qhov chaw, nws kuj tseem yuav tsim nyog rau passivate lub etched Circuit Court los ntawm kev tsim ib zaj duab xis passivation ntawm tooj liab nto los txhim kho nws cov oxidation tsis kam thiab corrosion kuj. Thaum kawg, kev tshuaj xyuas zoo yog ua los ntawm cov txheej txheem luam tawm hauv Circuit Board, siv cov khoom siv xws li optical microscopes thiab electron microscopes kom ua tib zoo xyuas qhov tseeb, qhov tseeb, thiab qhov zoo ntawm lub voj voog, kom ntseeg tau tias cov khoom ua tau raws li cov qauv tsim. Rau cov khoom tsis yog- kuaj pom cov khoom tsis raug, nws yog ib qho tsim nyog los tshuaj xyuas cov laj thawj thiab ua raws li kev ntsuas kho lossis muab pov tseg.
Daim ntawv thov ntawm Copper Reduction Process nyob rau hauv ntau yam luam tawm Circuit Board Hom
Rigid luam tawm Circuit Board
Rigid printed circuit board, raws li ib hom ntawm cov ntawv luam tawm Circuit Board, yog dav siv nyob rau hauv ntau yam khoom siv hluav taws xob. Hauv kev tsim cov txheej txheem ntawm cov ntawv luam tawm nruj, cov cuab yeej siv tooj liab txo tau siv los tsim cov kab siab -cov kab hluav taws xob uas ua tau raws li cov kev xav tau ntawm kev sib txuas hluav taws xob ntawm cov tshuab hluav taws xob nyuaj. Piv txwv li, nyob rau hauv kev tsim ntawm lub computer motherboards, siab - ntom Circuit Court layout yuav ua tau tiav nyob rau hauv ib tug txwv qhov chaw los ntawm tooj liab txo technology, kom ruaj khov thiab siab - ceev cov ntaub ntawv kis tau tus mob ntawm ntau yam xws li CPU, nco, graphics card, thiab lwm yam. Nrog rau kev loj hlob ntawm cov khoom hluav taws xob mus rau miniaturization thiab kev ua haujlwm siab, qhov yuav tsum tau ua rau cov khoom siv hluav taws xob ntau dua. Cov txheej txheem txo cov tooj liab tuaj yeem ua tiav cov kab dav dav thiab cov kab me me sib nrug los ntawm kev ua kom zoo etching tsis tau thiab siv cov cuab yeej siv hluav taws xob siab tshaj plaws, txhim kho kev sib koom ua ke thiab hluav taws xob kev ua haujlwm ntawm cov ntawv luam tawm nruj.
Flexible luam tawm Circuit Board
Cov ntawv luam tawm yooj yim tau siv dav hauv cov khoom siv hluav taws xob xws li smartphones thiab cov khoom siv hnav uas xav tau qhov chaw siab thiab yoog raws vim lawv qhov tshwj xeeb zoo ntawm kev hloov pauv thiab hnav. Txoj kev txo cov tooj liab kuj tseem ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntawv luam tawm yooj yim. Vim lub fact tias lub substrate ntawm saj zawg zog luam Circuit Court boards yog feem ntau saj zawg zog cov ntaub ntawv xws li polyimide los yog polyester, lawv yuav tsum tau rau etching txheej txheem yog nruj dua. Thaum lub sij hawm etching txheej txheem, nws yog ib qho tsim nyog yuav tsum tau tswj xyuas qhov tsis zoo ntawm etching kom tsis txhob muaj kev puas tsuaj rau cov khoom muag muag, thaum ua kom ntseeg tau qhov tseeb thiab kev ntseeg siab ntawm lub voj voog. Nyob rau hauv lub koob yees duab module ntawm lub smartphone, ib tug saj zawg zog luam ntawv Circuit Court board yog siv los tsim zoo circuits los ntawm tooj liab txo technology, ua kom tiav ib tug ruaj khov kev twb kev txuas ntawm lub koob yees duab thiab lub motherboard, thiab muaj peev xwm hloov mus rau qhov yuav tsum tau khoov ntawm lub koob yees duab ntawm txawv lub kaum sab xis. Nrog kev nce ntawm cov khoom siv hnav, cov kev sib tw ntau dua tau ua rau muaj qhov yooj yim, khoov tsis kam, thiab qhov tseeb ntawm cov khoom siv hluav taws xob hloov pauv tau yooj yim. Cov txheej txheem txo cov tooj liab yog niaj hnub tsim kho tshiab thiab tsim kho, siv cov txheej txheem etching thiab cov ntaub ntawv ntau dua kom tau raws li qhov xav tau loj hlob no.
Rigid flex luam tawm Circuit Board
Lub rooj sib dhos yooj yooj yim luam tawm Circuit Board sib txuas ua ke qhov zoo ntawm ob qho tib si nruj thiab hloov tau yooj yim luam tawm Circuit Court boards, nrog cov neeg kho tshuab zoo thiab khoov tau, thiab feem ntau yog siv nyob rau hauv siab -kawg teb xws li aerospace thiab automotive electronics. Cov txheej txheem txo cov tooj liab ntsib cov teeb meem nyuaj hauv kev tsim cov khoom siv hluav taws xob hloov pauv tau yooj yim, yuav tsum muaj siab - precision Circuit Court fabrication nyob rau hauv ob qho tib si nruj thiab saj zawg zog qhov chaw, thaum ua kom ntseeg tau kev sib txuas hauv kev hloov pauv ntawm ob. Hauv cov txheej txheem tsim khoom, cov txheej txheem etching sib txawv thiab cov txheej txheem yuav tsum tau txais los ntawm cov yam ntxwv sib txawv ntawm qhov tsis sib xws thiab hloov tau yooj yim. Piv txwv li, cov txheej txheem alkaline etching cov txheej txheem tuaj yeem siv rau hauv qhov chaw nruj kom ua tiav qhov tseeb etching ntau dua; Hauv qhov hloov pauv tau, yuav tsum siv cov txheej txheem me me acidic etching, thiab cov txheej txheem etching yuav tsum nruj me ntsis tswj kom tsis txhob muaj kev puas tsuaj rau lub substrate saj zawg zog. Los ntawm kev siv cov thev naus laus zis txo qhov tsim nyog, kev sib xyaw ua ke ntawm cov ntawv luam tawm nruj thiab hloov tau yooj yim tuaj yeem ua tiav cov txheej txheem hauv Circuit Court layouts thiab hloov tau yooj yim los ua ke, ua tau raws li qhov kev thov siab ntawm -kawg hluav taws xob rau siab - kev ua tau zoo thiab kev ntseeg siab ntawm cov ntawv luam tawm Circuit Court boards.