Printed circuit boardssiv cov rwb thaiv tsev rwb thaiv tsev raws li cov txheej txheem substrate, thiab los ntawm cov txheej txheem tshwj xeeb, cov kab hluav taws xob thiab cov ntaub so ntswg rau cov khoom siv hluav taws xob tau tsim los ntawm qhov chaw kom ua tiav cov hluav taws xob sib txuas ntawm cov khoom siv hluav taws xob. Txawm hais tias nws yog lub xov tooj me me thiab zoo heev, lub khoos phis tawj muaj zog, lossis kev tswj hwm kev lag luam nyuaj, lawv txhua tus cia siab rau kev txhawb nqa ntawm cov ntawv luam tawm.
Kev npaj theem rau kev tsim khoom
Xaiv cov khoom siv substrate tsim nyog
Lub substrate yog lub hauv paus ntawm cov ntawv luam tawm Circuit Court boards, thiab cov khoom siv substrate muaj xws li phenolic ntawv laminates, epoxy ntawv laminates, iav fiber ntau epoxy tooj liab- clad laminates, thiab lwm yam. Cov khoom sib txawv muaj qhov sib txawv ntawm cov khoom hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab lwm yam. Feem ntau, cov khoom siv hluav taws xob siv hluav taws xob siv FR-4, uas yog tus nqi nruab nrab thiab muaj kev ua tau zoo, raws li cov khoom siv substrate. Thaum xaiv ib lub substrate, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog ntau yam ntawm cov khoom siv raws li qhov kev thov scenario thiab kev ua tau zoo ntawm lub rooj tsav xwm Circuit Court.
Npaj cov cuab yeej thiab cov cuab yeej tsim nyog
Kev tsim cov ntawv luam tawm hauv Circuit Court yuav tsum muaj cov cuab yeej tshaj lij thiab cov cuab yeej siv, xws li cov tshuab raug, tsim cov cav tov, tshuab etching, drilling tshuab, tshuab luam ntawv, thiab lwm yam. Lub tshuab raug siv los hloov cov qauv tsim Circuit Court mus rau tooj liab- clad laminate los ntawm photochemical tshua; Lub tshuab tsim tawm tshem tawm cov khoom siv tsis zoo photosensitive tom qab raug, nthuav tawm cov qauv hauv Circuit Court; Lub tshuab etching siv cov tshuaj etching kom tshem tawm cov ntawv ci tooj liab uas tsis xav tau, tawm hauv cov kab ncaj nraim; Drilling tshuab yog siv los laum qhov rau kev txhim kho tus pins ntawm lub rooj tsavxwm; Cov tshuab luam ntawv tshuaj ntsuam yog siv los luam cov cim, cov ntawv lo, thiab lwm yam ntawm cov khoom siv hluav taws xob hauv Circuit Court, yooj yim rau kev sib dhos thiab kev saib xyuas tom qab.
txheej txheem ntau lawm
Copper clad laminate txiav
Raws li qhov tsim Circuit Court board loj, siv lub tshuab shearing los txiav cov tooj liab- clad board rau hauv qhov loj me. Thaum txiav, xyuas kom meej qhov tseeb thiab tswj qhov yuam kev nyob rau hauv ib qho me me kom tsis txhob cuam tshuam cov txheej txheem ntau lawm tom ntej.
Txheej cov ntaub ntawv photosensitive
Ntxuav qhov saum npoo ntawm qhov txiav tooj liab- clad board, tshem tawm cov roj stains, plua plav thiab lwm yam impurities, thiab tom qab ntawd muab ib txheej txheej ntawm cov khoom siv photosensitive, xws li zaj duab xis qhuav los yog kua photoresist. Cov txheej txheem txheej yuav tsum tau nqa tawm hauv chav tsaus ntuj kom tsis txhob raug mob ntxov ntawm cov khoom siv photosensitive. Lub thickness ntawm txheej yuav tsum zoo ib yam thiab zoo ib yam kom ntseeg tau tias tom qab raug thiab kev loj hlob cuam tshuam.
nphav
Kaw lub LDI nrog cov qauv hauv Circuit Court thiab cov khoom coated photosensitive rau ntawm tooj liab-clad board, thiab muab tso rau hauv lub tshuab raug. Lub tshuab raug emissions ultraviolet lub teeb, ua rau cov khoom siv photosensitive ntawm tooj liab-clad board mus rau photopolymerization cov tshuaj tiv thaiv nyob rau hauv cov qauv, tsim ib tug kho corrosion- txheej resistant, thaum lub photosensitive cov ntaub ntawv nyob rau hauv lub unexposed thaj chaw yog tseem soluble nyob rau hauv lub tsim tshuaj. Lub sij hawm raug thiab siv yuav tsum raug kho raws li cov yam ntxwv ntawm cov khoom siv photosensitive thiab transmittance ntawm LDI kom ntseeg tau qhov zoo ntawm cov txheej txheem.
kev loj hlob
Tom qab kis tau, cov tooj liab- clad board tau muab tso rau hauv lub tshuab tsim, thiab cov khoom siv photosensitive nyob rau hauv qhov chaw tsis pom kev yog yaj los ntawm kev tsim cov tshuaj, yog li nthuav tawm cov qauv hauv Circuit Court meej ntawm tooj liab- clad board. Cov txheej txheem kev txhim kho yuav tsum muaj kev tswj hwm nruj ntawm qhov concentration, qhov kub thiab txias, thiab lub sijhawm tsim kho ntawm cov kev daws teeb meem. Cov concentration ntau dhau los yog lub sij hawm ntev ntawm kev loj hlob tuaj yeem ua rau qee qhov kev txhim kho corrosion-cov txheej txheem tiv taus, ua rau thinning lossis txawm tawg ntawm cov kab hluav taws xob; Yog tias qhov concentration tsawg dhau los yog lub sijhawm luv dhau, cov khoom siv tsis pom kev zoo nkauj yuav nyob twj ywm, cuam tshuam rau cov nyhuv etching.
etching
Muab cov tooj liab tsim-clad laminate rau hauv lub tshuab etching. Cov tshuaj etching nyob rau hauv lub tshuab etching (xws li acidic tooj liab chloride etching tov) yuav hnov mob nrog cov ntawv ci tooj liab uas tsis muaj kev tiv thaiv los ntawm txheej tiv thaiv, yaj thiab tshem tawm, tawm hauv cov kab hluav taws xob tiv thaiv los ntawm cov txheej txheem tiv thaiv. Cov txheej txheem etching yuav tsum tau tswj tsis tau xws li cov concentration, kub, etching lub sij hawm, thiab tshuaj tsuag siab ntawm lub tshuab etching kom zoo ib yam etching thiab tsis txhob ntau dhau los yog tsis txaus etching. Tom qab etching, yaug cov tooj liab-clad board nrog dej huv kom tshem tawm cov residual etching tov thiab corrosion-resistant txheej ntawm qhov chaw.
qhov drilling
Raws li cov qauv tsim ntawm lub rooj tsav xwm Circuit Court, siv lub tshuab drilling los laum qhov rau kev txhim kho cov khoom siv hluav taws xob ntawm cov khoom sib txuas. Thaum drilling, nws yog ib qho tsim nyog los xyuas kom meej qhov raug thiab perpendicularity ntawm lub qhov txoj hauj lwm kom tsis txhob deviation los yog inclination ntawm lub qhov chaw, uas tej zaum yuav cuam tshuam rau lub installation thiab vuam zoo ntawm lub Cheebtsam. Qhov txoj kab uas hla ntawm lub qhov laum yuav tsum sib npaug ntawm txoj kab uas hla ntawm tus pin tivthaiv kom paub meej tias tus pin tuaj yeem muab tso rau hauv lub qhov thiab kom ntseeg tau tias muaj hluav taws xob zoo.
kho saum npoo
Txhawm rau txhim kho cov khoom siv hluav taws xob thiab oxidation tsis kam ntawm lub rooj tsav xwm hauv Circuit Court, nws yog ib qho tsim nyog los kho qhov chaw ntawm lub rooj tsav xwm hauv Circuit Court. Cov txheej txheem kev kho saum npoo muaj xws li cua kub leveling, electroless npib tsib xee kub plating, organic solderability tiv thaiv, thiab lwm yam. Cua kub leveling yog txheej txheem ntawm immersing lub Circuit Court board nyob rau hauv melted tin txhuas alloy, thiab tom qab ntawd siv cov cua kub los tshuab tawm ntau tshaj solder los tsim ib tug uniform solder txheej ntawm lub Circuit Court board; Cov tshuaj npib tsib xee kub plating yog txheej txheem ntawm kev tso ib txheej ntawm npib tsib xee rau saum npoo ntawm lub rooj tsav xwm Circuit Court, ua raws li txheej kub. Cov txheej kub muaj qhov zoo conductivity thiab oxidation tsis kam, uas tuaj yeem txhim kho kev ntseeg tau ntawm lub rooj tsav xwm Circuit Court; Organic solderability tiv thaiv yog ib txheej ntawm cov organic tiv thaiv zaj duab xis coated rau saum npoo ntawm lub rooj tsavxwm Circuit Court kom tiv thaiv oxidation ntawm tooj liab nto. Nyob rau tib lub sijhawm, cov yeeb yaj kiab tiv thaiv yuav decompose thaum lub sijhawm soldering, nthuav tawm cov tooj liab thiab ua kom muaj kev ua haujlwm zoo. Kev xaiv cov txheej txheem kho saum npoo yuav tsum tau txiav txim siab raws li daim ntawv thov scenario, tus nqi yuav tsum tau ua, thiab kev cia siab rau kev ua haujlwm hluav taws xob thiab kev ntseeg siab ntawm lub rooj tsav xwm hauv Circuit Court.
Silk screen cim thiab cim
Siv lub tshuab luam ntawv tshuab luam ntawv los luam cov cim, cov ntawv sau, thiab cov duab kos rau ntawm qhov chaw ntawm lub rooj tsav xwm hauv Circuit Court, xws li cov naj npawb, cov ntawv cim polarity, Circuit Board qauv, thiab lwm yam. Screen luam ntawv number case yuav tsum muaj adhesion zoo thiab hnav tsis kam, cov qauv luam tawm yuav tsum meej thiab meej, thiab tus cwj pwm loj thiab txoj hauj lwm yuav tsum ua tau raws li cov qauv tsim.
kev soj ntsuam zoo
Kev tshuaj xyuas qhov muag
Tshawb xyuas qhov chaw ntawm lub rooj tsav xwm Circuit Court kom pom tseeb qhov tsis xws li khawb, stains, tooj liab foil residue, luv Circuit Court, los yog qhib circuits nrog qhov muag liab qab los yog nrog kev pab los ntawm magnifying iav, microscopes, thiab lwm yam cuab yeej. Nyob rau tib lub sijhawm, xyuas seb cov cim silk screen puas meej thiab ua tiav, thiab seb cov haujlwm ntawm lub qhov puas yog lawm.
Kev ntsuas hluav taws xob ua haujlwm
Siv cov cuab yeej ntsuas kev tshaj lij xws li rab koob ya davhlau, cov ntsuas hauv online, thiab lwm yam los ntsuas cov hluav taws xob ua haujlwm ntawm lub rooj tsav xwm hluav taws xob. Lub tshuab rab koob ya davhlau kuaj pom qhov sib txuas, luv luv Circuit Court, qhib Circuit Court, thiab cov khoom tsis sib xws ntawm Circuit Court los ntawm kev tiv tauj nrog cov kev sojntsuam nrog rau qhov ntsuas ntawm lub rooj tsavxwm; Tus neeg kuaj online tuaj yeem ua qhov kev sim ua haujlwm ntawm cov khoom nruab rau ntawm lub rooj tsavxwm Circuit Court los txiav txim seb lawv puas ua haujlwm zoo. Los ntawm kev ntsuas hluav taws xob, cov teeb meem ntawm kev sib txuas hluav taws xob thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob tuaj yeem raug txheeb xyuas sai, ua kom cov khoom zoo raws li cov qauv.
luam ntawv Circuit Court boards, fr4 pcb