Muaj plaub txoj hauv kev electroplating tseem ceeb hauv Circuit Board: ntiv tes-kab electroplating, hla-qhov electroplating, reel-linked selective plating, thiab txhuam plating.

Nov yog ib qho kev qhia luv luv:

01
ntiv tes kab plating
Tsis tshua muaj hlau yuav tsum tau plated rau ntawm lub rooj tsavxwm ntug connectors, board edge protruding contacts lossis kub ntiv tes los muab kev tiv thaiv qis dua thiab hnav tsis kam. Cov tshuab no yog hu ua ntiv tes kab electroplating lossis protruding ib feem electroplating. Kub feem ntau yog plated rau ntawm cov kev sib cuag ntawm lub rooj tsavxwm ntug connector nrog rau sab hauv plating txheej ntawm npib tsib xee. Cov ntiv tes kub los yog qhov chaw tawm ntawm lub rooj tsavxwm ntug yog manually lossis txiav plated. Tam sim no, cov kub plating ntawm qhov txuas txuas lossis cov ntiv tes kub tau plated lossis coj. , Hloov cov nyees khawm plated.

Cov txheej txheem ntawm ntiv tes kab electroplating yog raws li nram no:

Stripping ntawm txheej kom tshem tawm cov tin los yog tin-lead txheej ntawm cov neeg sib cuag
Yaug nrog dej ntxuav
Scrub nrog abrasive
Kev ua kom yog diffused hauv 10% sulfuric acid
Lub thickness ntawm npib tsib xee plating ntawm cov neeg tiv thaiv yog 4-5μm
Ntxuav thiab demineralize dej
Kub nkag mus rau kev kho mob
Gilded
Ntxuav
ziab

02
Los ntawm lub qhov plating
Muaj ntau txoj hauv kev los tsim ib txheej ntawm electroplating txheej ntawm lub qhov phab ntsa ntawm lub substrate drilled qhov. Qhov no yog hu ua lub qhov phab ntsa ua kom ua haujlwm hauv cov ntawv thov kev lag luam. Cov txheej txheem tsim khoom lag luam ntawm nws cov ntawv luam tawm yuav tsum muaj ntau lub tank cia nruab nrab. Lub tank muaj nws tus kheej tswj thiab tu cov cai. Los ntawm lub qhov plating yog qhov tsim nyog taug qab cov txheej txheem ntawm cov txheej txheem drilling. Thaum lub laum me ntsis xyaum los ntawm cov ntawv ci tooj liab thiab cov substrate hauv qab, lub tshav kub generated melts lub insulating hluavtaws resin uas yog feem ntau ntawm cov substrate matrix, molten resin thiab lwm yam drilling khib nyiab Nws yog accumulated nyob ib ncig ntawm lub qhov thiab coated nyob rau hauv lub newly exposed qhov. phab ntsa hauv tooj liab ntawv ci. Qhov tseeb, qhov no yog teeb meem rau tom ntej electroplating nto. Lub molten resin tseem yuav tawm hauv ib txheej ntawm cov ncej kub ntawm lub qhov phab ntsa ntawm lub substrate, uas nthuav tawm cov adhesion tsis zoo rau cov activators feem ntau. Qhov no yuav tsum muaj kev txhim kho ntawm cov chav kawm zoo sib xws de-staining thiab etch-back chemical technologies.

Ib txoj hauv kev tsim nyog rau kev tsim cov ntawv luam tawm Circuit Board yog siv cov ntawv tshwj xeeb uas tsis tshua muaj viscosity number case los tsim cov yeeb yaj kiab uas muaj nplaum thiab ua tau zoo heev rau ntawm phab ntsa sab hauv ntawm txhua lub qhov. Nyob rau hauv txoj kev no, tsis tas yuav siv ntau cov txheej txheem tshuaj, tsuas yog ib daim ntawv thov kauj ruam thiab tom qab thermal curing tuaj yeem tsim cov yeeb yaj kiab txuas ntxiv rau sab hauv ntawm tag nrho cov phab ntsa, uas tuaj yeem ncaj qha electroplated yam tsis muaj kev kho mob ntxiv. Cov number case no yog cov khoom siv resin uas muaj zog adhesion thiab tuaj yeem yooj yim adhered rau cov phab ntsa ntawm feem ntau thermally polished qhov, yog li tshem tawm cov kauj ruam ntawm etch rov qab.

03
Reel linkage hom xaiv plating
Cov pins thiab pins ntawm cov khoom siv hluav taws xob, xws li cov khoom sib txuas, kev sib txuas sib txuas, cov khoom siv hluav taws xob thiab cov ntawv luam tawm yooj yim, siv cov plating xaiv kom tau txais kev sib cuag zoo thiab kev tiv thaiv corrosion. Txoj kev electroplating no tuaj yeem yog phau ntawv lossis tsis siv neeg. Nws yog kim heev rau xaiv phaj txhua tus tus kheej, yog li batch vuam yuav tsum tau siv. Feem ntau, ob qhov kawg ntawm cov ntawv hlau uas tau dov mus rau qhov yuav tsum tau muaj tuab yog xuas nrig ntaus, ntxuav los ntawm cov tshuaj lom neeg lossis cov txheej txheem siv tshuab, thiab tom qab ntawd xaiv siv xws li npib tsib xee, kub, nyiaj, rhodium, khawm lossis tin-nickel alloy, tooj liab-nickel alloy. , Nickel-lead alloy, thiab lwm yam rau kev nruam electroplating. Nyob rau hauv txoj kev electroplating ntawm kev xaiv plating, thawj lub tsho tiv no ib txheej ntawm cov yeeb yaj kiab tiv thaiv ntawm ib feem ntawm cov hlau tooj liab ntawv ci uas tsis tas yuav tsum tau electroplated, thiab electroplating tsuas yog rau ntawm cov ntawv ci tooj liab.

04
Txhuam plating
"Txhuam plating" yog cov txheej txheem electrodeposition, uas tsis yog txhua qhov chaw yog raus hauv electrolyte. Nyob rau hauv hom kev siv tshuab electroplating no, tsuas yog ib cheeb tsam tsuas yog electroplated, thiab tsis muaj kev cuam tshuam rau tus so. Feem ntau, cov hlau tsis tshua muaj plated ntawm xaiv qhov chaw ntawm lub rooj tsav xwm luam tawm, xws li cov chaw xws li board edge connectors. Txhuam plating yog siv ntau dua thaum kho cov ntawv pov tseg pov tseg hauv cov khw muag khoom siv hluav taws xob. Qhwv ib qho tshwj xeeb anode (ib qho tshuaj tsis muaj zog anode, xws li graphite) hauv cov khoom nqus dej (paj rwb), thiab siv nws los nqa cov tshuaj electroplating mus rau qhov chaw uas xav tau electroplating.

5. Kev tuav thaiv thiab ua cov cim tseem ceeb

Kev tuav thaiv yog ib qho tseem ceeb ntawm cov ntawv luam tawm Circuit Board tsim tam sim no thiab yav tom ntej. Siv phau ntawv thaiv kev pab cuam tsis siv neeg txuas cov cuab yeej los ua kom tiav cov kev sib txuas. Los ntawm manually routing thiab kho cov xaiv network (net), ib txoj kev uas yuav siv tau rau tsis siv neeg routing yuav tsim.

Cov teeb liab tseem ceeb yog xaim ua ntej, manually lossis ua ke nrog cov cuab yeej txuas tsis siv neeg. Tom qab kev xaim tiav lawm, cov neeg ua haujlwm engineering thiab cov kws tshaj lij yuav kuaj xyuas cov teeb liab thaiv. Tom qab kev soj ntsuam dhau lawm, cov xov hlau yuav raug kho, thiab tom qab ntawd cov cim tseem ceeb yuav raug xa mus. Vim muaj cov impedance nyob rau hauv av xaim, nws yuav ua rau muaj kev cuam tshuam impedance rau hauv Circuit Court.

Yog li ntawd, tsis txhob randomly txuas cov ntsiab lus nrog cov cim hauv av thaum lub sij hawm xaim, uas yuav ua rau muaj teeb meem kev sib txuas thiab cuam tshuam rau kev ua haujlwm ntawm lub voj voog. Ntawm cov zaus ntau dua, qhov inductance ntawm cov xaim yuav yog ntau qhov kev txiav txim ntawm qhov loj dua qhov tsis kam ntawm cov hlau nws tus kheej. Nyob rau lub sijhawm no, txawm tias tsuas yog ib qho me me uas muaj zaus tam sim no ntws los ntawm cov xaim, qee qhov kev poob qis yuav tshwm sim.

Yog li ntawd, rau high-frequency circuits, PCB layout yuav tsum tau teem kom compactly li sai tau thiab cov ntawv xov hlau yuav tsum luv li sai tau. Muaj kev sib nrig sib inductance thiab capacitance ntawm cov xov hlau luam tawm. Thaum ua haujlwm zaus loj, nws yuav ua rau muaj kev cuam tshuam rau lwm qhov chaw, uas yog hu ua parasitic coupling cuam tshuam.

Cov txheej txheem tiv thaiv uas tuaj yeem ua tau yog:
① Sim ua kom luv lub teeb liab thaiv ntawm txhua qib;
②Tau txhua theem ntawm cov kab hluav taws xob hauv qhov kev txiav txim ntawm cov teeb liab kom tsis txhob hla txhua theem ntawm cov kab teeb liab;
③ Cov xov hlau ntawm ob lub vaj huam sib luag uas nyob ib sab yuav tsum yog perpendicular lossis hla, tsis yog sib npaug;
④ Thaum cov teeb liab xaim yuav tsum tau muab tso rau hauv qhov sib npaug ntawm lub rooj tsavxwm, cov xov hlau no yuav tsum tau sib cais los ntawm qhov deb li ntau tau, lossis sib cais los ntawm cov xov hlau hauv av thiab cov xaim hluav taws xob kom ua tiav lub hom phiaj ntawm kev tiv thaiv.
6. Tsis siv neeg xaim

Rau kev xaim ntawm cov cim tseem ceeb, koj yuav tsum xav txog kev tswj hwm qee qhov hluav taws xob tsis zoo thaum txuas hluav taws xob, xws li txo cov inductance, thiab lwm yam. Tsis siv neeg xaim tuaj yeem tau txais los ntawm qee qhov Guarantee. Cov kev cai dav dav yuav tsum tau siv thaum txiav tawm cov teeb liab.

Los ntawm kev teeb tsa kev txwv kev txwv thiab txwv tsis pub cov chaw xa xov kom txwv cov txheej txheem siv los ntawm lub teeb liab muab thiab tus naj npawb ntawm vias siv, cov cuab yeej xaim tuaj yeem txiav cov xaim xaim raws li tus engineer lub tswv yim tsim. Tom qab teeb tsa cov kev txwv thiab siv cov cai tsim, qhov kev ua haujlwm tsis siv neeg yuav ua tiav cov txiaj ntsig zoo ib yam li cov txiaj ntsig xav tau. Tom qab ib feem ntawm kev tsim tiav, nws yuav raug kho kom tsis txhob raug cuam tshuam los ntawm cov txheej txheem routing tom ntej.

Tus naj npawb ntawm cov xaim nyob ntawm qhov nyuaj ntawm lub voj voog thiab tus naj npawb ntawm cov kev cai dav dav tau teev tseg. Niaj hnub no cov cuab yeej siv hluav taws xob tsis siv neeg muaj zog heev thiab tuaj yeem ua tiav 100% ntawm kev xaim. Txawm li cas los xij, thaum lub cuab yeej tsis siv neeg txuas tsis tau ua tiav tag nrho cov teeb liab thaiv, nws yog ib qho tsim nyog yuav tsum tau manually tswj cov teeb liab ntxiv.
7. Kev teeb tsa kev sib txuas

Rau qee cov teeb liab uas muaj ob peb qhov txwv, cov xov hlau ntev ntev heev. Nyob rau lub sijhawm no, koj tuaj yeem txiav txim siab ua ntej qhov kev xaim twg yog qhov tsim nyog thiab qhov kev xaim twg tsis tsim nyog, thiab tom qab ntawd hloov kho manually kom luv lub teeb liab thaiv qhov ntev thiab txo tus naj npawb ntawm vias.