Via qhov tseem hu ua via qhov.Txhawm rau ua kom tau raws li cov neeg siv khoom xav tau, lub
Circuit Board ntawm qhov yuav tsum tau ntsaws.Tom qab ntau qhov kev xyaum, cov txheej txheem txhuas lub qhov ntsaws qhov qub tau hloov pauv, thiab lub rooj tsav xwm Circuit Court saum npoo ntawm lub npog ntsej muag thiab lub ntsaws yog ua tiav nrog dawb mesh.qhov.ruaj khov ntau lawm thiab txhim khu kev qha zoo.
Via qhov ua si lub luag haujlwm ntawm kev sib tshuam thiab ua cov kab.Txoj kev loj hlob ntawm kev lag luam hluav taws xob kuj txhawb kev txhim kho ntawm PCBs, thiab tseem tso siab rau cov kev xav tau siab dua rau kev tsim cov tshuab luam ntawv thiab cov tshuab nto mount.Ntawm lub qhov ntsaws tshuab tau los ua, thiab cov hauv qab no yuav tsum tau ua raws tib lub sijhawm:
(1) Tsuas muaj tooj liab nyob rau hauv lub qhov ntawm lub qhov, thiab lub qhov ncauj qhov ntswg tuaj yeem ntsaws los yog tsis tau;
(2) Yuav tsum muaj cov tin thiab txhuas nyob rau hauv lub qhov ntawm lub qhov, nrog ib tug tej yam thickness yuav tsum tau (4 microns), thiab tsis muaj solder tiv thaiv number case yuav tsum tau nkag mus rau hauv lub qhov, ua rau tin hlaws dai nyob rau hauv lub qhov;
(3) Lub qhov ntawm lub qhov yuav tsum muaj cov tawv tawv tiv thaiv lub qhov ntsaws qhov, opaque, thiab yuav tsum tsis txhob muaj lub voj voog tin, tin hlaws, thiab qib yuav tsum tau ua.
Vim li cas PCB Circuit Boards yuav tsum tau thaiv cov vias?
Nrog rau txoj kev loj hlob ntawm cov khoom siv hluav taws xob nyob rau hauv cov kev taw qhia ntawm "lub teeb, nyias, luv luv thiab me", PCBs tseem tab tom txhim kho mus rau qhov siab ceev thiab siab nyuaj.Yog li ntawd, ib tug loj tus naj npawb ntawm SMT thiab BGA PCBs tau tshwm sim, thiab cov neeg muas zaub xav tau plug qhov thaum mounting Cheebtsam, feem ntau suav nrog tsib lub zog:
(1) Tiv thaiv cov tin los ntawm kev nkag mus los ntawm cov khoom siv saum npoo los ntawm lub qhov kom ua rau luv luv thaum PCB dhau los ntawm yoj soldering;tshwj xeeb tshaj yog thaum peb tso qhov ntawm qhov ntawm BGA ncoo, peb yuav tsum xub ua lub qhov ntsaws, thiab tom qab ntawd kub-plated los pab BGA soldering.
(2) Tsis txhob flux residue nyob rau hauv lub qhov ntawm lub qhov;
(3) Tom qab qhov chaw mounting thiab cov khoom sib dhos ntawm lub tshuab hluav taws xob ua tiav, PCB yuav tsum tau nqus ntawm lub tshuab kuaj kom tsim qhov tsis zoo ua ntej nws ua tiav:
(4) Tiv thaiv cov nplaum nplaum nplaum los ntawm qhov ntws mus rau hauv lub qhov kom ua rau lub vuam virtual, uas cuam tshuam rau lub mounting;
(5) Tiv thaiv tin hlaws los ntawm popping tawm thaum lub sij hawm yoj soldering, ua rau luv luv Circuit Court.
Realization ntawm Conductive Qhov Plugging Technology
Rau saum npoo mount boards, tshwj xeeb tshaj yog rau BGA thiab IC mounting, lub qhov ntawm lub qhov yuav tsum tiaj tus, nrog ib tug convex thiab concave ntxiv los yog rho tawm 1 mil, thiab yuav tsum tsis muaj liab tin ntawm ntug ntawm lub qhov;tin hlaws tau muab zais rau hauv lub qhov ntawm lub qhov, txhawm rau ua tiav cov neeg siv khoom txaus siab Cov kev xav tau ntawm cov txheej txheem ntawm lub qhov ntsaws ntsaws tuaj yeem piav qhia ntau yam, cov txheej txheem ntws tau ntev tshwj xeeb, thiab cov txheej txheem tswj tau nyuaj.Feem ntau muaj teeb meem xws li roj poob thaum lub sij hawm cua kub leveling thiab ntsuab roj solder kuj thwmsim;roj tawg tom qab kho.Tam sim no raws li kev tsim khoom tiag tiag, ntau yam txheej txheem ntsaws qhov ntawm PCB tau sau tseg, thiab qee qhov kev sib piv thiab kev piav qhia tau ua hauv cov txheej txheem, qhov zoo thiab qhov tsis zoo:
Lus Cim: Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm huab cua kub yog siv cov cua kub kom tshem tawm cov khoom siv ntau dhau ntawm cov ntawv luam tawm ntawm lub rooj tsavxwm thiab hauv lub qhov, thiab qhov seem ntawm cov solder yog sib npaug ntawm cov ntaub qhwv, cov kab uas tsis yog-kho cov kab thiab saum npoo. ntim cov ntsiab lus, uas yog txoj kev kho saum npoo ntawm cov ntawv luam tawm Circuit Board.ib.
1. Plug qhov txheej txheem tom qab cua kub leveling
Cov txheej txheem ntws yog: board nto solder daim npog qhov ncauj → HAL → plug qhov → curing.Cov txheej txheem tsis txuas yog siv rau kev tsim khoom.Tom qab cua kub yog leveled, aluminium screen los yog number case blocking screen yog siv los ua kom tiav ntawm lub qhov ntsaws ntawm tag nrho cov fortresses xav tau los ntawm cov neeg siv khoom.Tus cwj mem ntsaws tuaj yeem yog tus cwj mem photosensitive lossis thermosetting number case.Nyob rau hauv cov ntaub ntawv ntawm kom ntseeg tau tias tib xim ntawm cov yeeb yaj duab ntub dej, lub plugging number case yog qhov zoo tshaj plaws los siv tib tus cwj mem raws li lub board nto.Cov txheej txheem no tuaj yeem ua kom ntseeg tau tias lub qhov ntawm lub qhov tsis tso cov roj tom qab cua kub yog leveled, tab sis nws yog ib qho yooj yim uas yuav ua rau lub plug qhov number case kom paug lub board nto thiab tsis sib xws.Nws yog ib qho yooj yim rau cov neeg muas zaub los ua virtual soldering (tshwj xeeb tshaj yog nyob rau hauv BGA) thaum mounting.Yog li ntau tus neeg siv khoom tsis lees txais cov qauv no.
2. Plug qhov txheej txheem ua ntej cua kub leveling
2.1 Siv cov ntawv txhuas los ntsaws qhov, kho, thiab zom cov phaj rau cov qauv hloov
Hauv cov txheej txheem no, lub tshuab CNC drilling yog siv los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws, ua lub npov phaj, thiab ntsaws lub qhov kom paub meej tias lub qhov ntawm lub qhov puv puv, thiab cov ntawv ntsaws ntsaws yog siv los ntsaws lub qhov. ., resin shrinkage hloov me me, thiab lub zog sib txuas nrog lub qhov phab ntsa yog qhov zoo.Cov txheej txheem ntws yog: pretreatment → plug qhov → sib tsoo phaj → qauv hloov → etching → board nto solder daim npog qhov ncauj
Txoj kev no tuaj yeem ua kom ntseeg tau tias lub qhov ntawm lub qhov ntsaws lub qhov yog tiaj tus, thiab cov cua kub theem yuav tsis muaj teeb meem zoo xws li cov roj tawg thiab cov roj poob ntawm ntug ntawm lub qhov, tab sis cov txheej txheem no yuav tsum muaj ib zaug tuab ntawm tooj liab, yog li ntawd. tooj liab thickness ntawm lub qhov phab ntsa tuaj yeem ua tau raws li tus neeg siv khoom tus qauv.Yog li ntawd, qhov yuav tsum tau ua rau tooj liab plating ntawm tag nrho cov phaj yog siab heev, thiab tseem muaj cov kev xav tau siab rau kev ua haujlwm ntawm lub tshuab sib tsoo kom ntseeg tau tias cov resin ntawm cov tooj liab tau raug tshem tawm tag nrho, thiab cov tooj liab nto yog huv si thiab tsis pub dawb. ua paug.Ntau lub chaw tsim khoom PCB tsis muaj cov txheej txheem ua tooj liab ib zaug, thiab kev ua haujlwm ntawm cov khoom siv tsis tau raws li qhov yuav tsum tau ua, ua rau cov txheej txheem no tsis siv ntau hauv PCB factories.
2.2 Tom qab ntsaws lub qhov nrog cov ntawv txhuas, ncaj qha tshuaj ntsuam lub npog ntsej muag ntawm lub rooj tsavxwm
Hauv cov txheej txheem no, lub tshuab CNC drilling yog siv los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws los ua ib qho screen phaj, uas yog ntsia rau ntawm lub vijtsam luam ntawv rau ntsaws.Tom qab lub ntsaws tiav lawm, nws yuav tsum tsis txhob nres ntau tshaj 30 feeb.Cov txheej txheem ntws yog: pretreatment - plug qhov - silk screen - pre-baking - raug - tsim - curing
Cov txheej txheem no tuaj yeem ua kom ntseeg tau tias lub qhov ntawm lub qhov yog zoo npog nrog roj, lub qhov ntsaws yog tiaj tus, thiab cov xim ntawm cov yeeb yaj kiab ntub dej yog tib yam.Pads, ua rau tsis zoo solderability;tom qab cua kub leveling, ntug ntawm lub qhov npuas thiab roj raug tshem tawm.Nws yog ib qho nyuaj rau kev tswj cov khoom siv cov txheej txheem no, thiab cov txheej txheem engineer yuav tsum tau txais cov txheej txheem tshwj xeeb thiab cov kev ntsuas kom ntseeg tau qhov zoo ntawm lub qhov ntsaws.
Vim li cas PCB Circuit Boards yuav tsum tau thaiv cov vias?
2.3 Tom qab cov ntawv txhuas ntsaws lub qhov, txhim kho, kho ua ntej, thiab grinds lub rooj tsavxwm, lub board nto yog soldered.
Siv lub tshuab CNC drilling los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws qhov, ua lub phaj phaj, thiab nruab rau ntawm lub tshuab luam ntawv hloov pauv rau lub qhov ntsaws.Lub qhov ntsaws yuav tsum yog tag nrho, thiab ob sab yog zoo dua protruding.Cov txheej txheem ntws yog: ua ntej kho - ntsaws qhov - ua ntej ci - kev loj hlob - pre-kho - board nto solder daim npog qhov ncauj
Vim tias cov txheej txheem no tau txais kev kho lub qhov ntsaws los xyuas kom meej tias lub qhov ntawm lub qhov yuav tsis poob roj lossis tawg roj tom qab HAL, tab sis tom qab HAL, nws yog ib qho nyuaj los daws qhov teeb meem ntawm tin hlaws hauv lub qhov ntawm lub qhov thiab tin ntawm lub qhov ntawm lub qhov, ntau tus neeg muas zaub tsis txais nws.
2.4 Lub npog ntsej muag rau ntawm lub rooj tsavxwm thiab lub qhov ntsaws yog ua tiav tib lub sijhawm.
Txoj kev no siv 36T (43T) tshuaj ntsuam mesh, uas yog ntsia rau ntawm lub tshuab luam ntawv tshuaj ntsuam, siv lub phaj rov qab los yog ntsia thawv txaj, thiab ntsaws tag nrho cov ntawm qhov thaum ua tiav lub rooj tsavxwm.Cov txheej txheem ntws yog: pretreatment--screen printing--Pre-bake--Exposure--Development--Kho
Cov txheej txheem no muaj lub sijhawm luv luv thiab kev siv cov cuab yeej siv siab, uas tuaj yeem ua kom ntseeg tau tias cov ntawm qhov yuav tsis poob roj thiab cov ntawm qhov yuav tsis raug tinned tom qab cua kub leveling., Cov huab cua nthuav dav thiab tawg los ntawm lub ntsej muag solder, ua rau voids thiab unevenness.Yuav muaj ib qho me me ntawm cov qhov muab zais rau hauv tin thaum lub sij hawm cua kub leveling.Tam sim no, peb lub tuam txhab tau pib daws qhov tsis sib xws ntawm lub qhov ntawm lub qhov tom qab ntau qhov kev sim, xaiv ntau hom number case thiab viscosity, kho lub siab ntawm silk screen printing, thiab lwm yam, thiab cov txheej txheem no tau txais kev pom zoo rau ntau lawm. .
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