Vim li cas thiaj yuav tsum tau ntsaws ntawm lub qhov ntawm PCB

Conductive qhov Via qhov tseem hu ua conduction qhov. Txhawm rau ua kom tau raws li cov neeg siv khoom xav tau, lub rooj tsav xwm Circuit Court ntawm lub qhov yuav tsum tau ntsaws. Tom qab ntau qhov kev xyaum, cov txheej txheem ntawm txhuas daim ntawv txuas yog hloov pauv, thiab lub rooj tsav xwm hauv Circuit Court tau ua tiav nrog dawb mesh. qhov. Kev tsim khoom ruaj khov thiab qhov zoo yog txhim khu kev qha.

Ntawm qhov ua si lub luag haujlwm ntawm kev sib tshuam thiab kev ua ntawm cov kab. Txoj kev loj hlob ntawm kev lag luam hluav taws xob kuj txhawb kev txhim kho ntawm PCB, thiab tseem tso siab rau cov kev xav tau siab dua rau kev tsim cov tshuab luam ntawv thiab cov tshuab nto mount. Cov txheej txheem Via qhov ntsaws tau los ua, thiab cov kev cai hauv qab no yuav tsum tau ua raws tib lub sijhawm:
(1) Tsuas muaj tooj liab txaus nyob rau hauv lub qhov ntawm lub qhov, thiab lub npog ntsej muag tuaj yeem ntsaws los yog tsis tau;
(2) Yuav tsum muaj tin-lead nyob rau hauv lub qhov, nrog rau tej yam thickness yuav tsum tau (4 microns), thiab yuav tsum tsis muaj solder tiv thaiv number case 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 nplaum tiv thaiv qhov ntsaws ntsaws qhov, yog opaque, thiab yuav tsum tsis muaj tin rings, tin hlaws, thiab flatness.
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 rau siab ceev thiab siab nyuaj, yog li muaj ntau tus SMT thiab BGA PCBs, thiab cov neeg siv khoom yuav tsum tau ntsaws qhov thaum mounting. cov khoom. Tsib lub luag haujlwm:
(1) Tiv thaiv luv luv Circuit Court los ntawm tin nkag los ntawm cov khoom nto los ntawm qhov ntawm lub qhov thaum lub PCB dhau yoj soldering; tshwj xeeb tshaj yog thaum peb muab lub qhov ntawm lub BGA ncoo, peb yuav tsum xub ua lub plug qhov thiab ces kub-phaj nws yuav pab tau BGA soldering.
(2) Tsis txhob muaj cov dej ntws tawm hauv lub qhov ntawm 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 los ua qhov tsis zoo ntawm lub tshuab kuaj;
(4) Tiv thaiv kom tsis txhob muab tshuaj txhuam rau ntawm qhov chaw los ntawm kev ntws mus rau hauv lub qhov kom ua rau tsis muaj tseeb thiab cuam tshuam rau qhov chaw;
(5) Tiv thaiv tin hlaws los ntawm popping tawm thaum lub sij hawm yoj soldering, ua rau luv luv circuits.

Realization ntawm Conductive Qhov Plug Technology
Rau saum npoo mount boards, tshwj xeeb tshaj yog BGA thiab IC mounting, ntawm lub qhov ntsaws lub qhov yuav tsum tiaj tus, nrog ib tug pob ntawm ntxiv los yog rho tawm 1mil, 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 Raws li qhov yuav tsum tau ua ntawm qhov yuav tsum tau ua, lub viav vias ntsaws qhov tshuab tuaj yeem piav qhia ntau yam, cov txheej txheem ntws tau ntev heev, thiab kev tswj cov txheej txheem nyuaj. Feem ntau muaj teeb meem xws li roj poob thaum lub sij hawm huab cua kub leveling thiab ntsuab roj solder resistance test; roj tawg tom qab kho.
Tam sim no, raws li kev tsim khoom tiag tiag, peb yuav sau cov txheej txheem txuas ntau yam ntawm PCB, thiab ua qee qhov kev sib piv thiab elaborations ntawm cov txheej txheem thiab qhov zoo thiab qhov tsis zoo: Nco ntsoov: Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov cua kub theem yog siv cov cua kub kom tshem tawm ntau dhau. solder rau ntawm qhov chaw ntawm lub rooj tsav xwm luam tawm thiab hauv qhov. Nws yog ib qho ntawm txoj kev kho saum npoo ntawm cov ntawv luam tawm Circuit Board.
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 yog lub qhov ntsaws yog siv rau kev tsim khoom, thiab cov ntawv txhuas ntawv los yog cov kua nplaum thaiv qhov screen yog siv los ua kom tiav los ntawm lub qhov ntsaws qhov ntawm tag nrho cov fortresses xav tau los ntawm cov neeg siv khoom tom qab cua kub leveling. 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 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 roj tom qab cua kub theem, tab sis nws yog ib qho yooj yim uas yuav ua rau plugging number case kom paug cov board nto thiab ua rau nws 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 muab tso rau. Yog li ntau tus neeg siv khoom tsis lees txais cov qauv no.
2. Cua kub leveling pem hauv ntej plug qhov txheej txheem
2.1 Plug qhov nrog txhuas ntawv, solidify thiab zom cov phaj rau cov qauv hloov
Cov txheej txheem no siv lub tshuab CNC drilling los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws los ua ib qho screen, thiab tom qab ntawd ntsaws lub qhov kom paub meej tias lub qhov ntawm lub qhov puv. Plugging number case kuj tuaj yeem yog tus cwj mem thermosetting, uas yuav tsum muaj siab hardness. , Lub shrinkage ntawm resin hloov me ntsis, thiab lub zog khi nrog lub qhov phab ntsa yog qhov zoo. Cov txheej txheem ntws yog: pretreatment → plug qhov → sib tsoo phaj → nraaj hloov → etching → solder mask ntawm lub rooj tsavxwm nto. Txoj kev no tuaj yeem ua kom ntseeg tau tias lub qhov hla ntawm lub qhov ntsaws yog tiaj tus, thiab cov cua kub theem yuav tsis ua rau muaj teeb meem zoo xws li roj tawg thiab roj poob ntawm ntug ntawm lub qhov. Txawm li cas los xij, cov txheej txheem no yuav tsum tau ua kom cov tooj liab tuab dua los ua kom cov tooj liab tuab ntawm lub qhov phab ntsa ua tau raws li tus neeg siv khoom tus qauv, yog li Cov kev cai rau tooj liab plating ntawm tag nrho cov board yog siab heev, thiab cov kev ua tau zoo ntawm lub tshuab sib tsoo kuj siab heev, los xyuas kom meej tias. cov resin ntawm tooj liab nto yog tshem tawm tag nrho, thiab cov tooj liab nto yog huv si thiab tsis muaj kuab paug. Ntau lub chaw tsim khoom PCB tsis muaj cov txheej txheem tooj liab mus tas li, thiab kev ua haujlwm ntawm cov khoom siv tsis tuaj yeem ua 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 qhov nrog cov ntawv txhuas, ncaj qha tshuaj ntsuam-luam daim npog ntsej muag rau ntawm lub rooj tsavxwm
Cov txheej txheem no siv lub tshuab CNC drilling los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws los ua ib qho screen, nruab rau ntawm lub vijtsam luam ntawv tshuab rau ntsaws, thiab nres nws tsis pub dhau 30 feeb tom qab ua tiav qhov ntsaws. Siv lub vijtsam 36T ncaj qha los tshuaj xyuas cov khoom siv ntawm lub rooj tsavxwm. Cov txheej txheem ntws yog: pre-kho - ntsaws - silk screen printing - pre-baking - raug - kev loj hlob - curing txheej txheem no yuav xyuas kom meej tias cov roj ntawm lub qhov ntawm lub hau npog yog zoo, lub plug qhov yog du, cov xim ntawm cov ntub dej. zaj duab xis yog zoo ib yam, thiab tom qab cua kub leveling Nws muaj peev xwm xyuas kom meej tias lub qhov ntawm lub qhov yog tsis muaj tin, thiab tsis muaj tin hlaws dai nyob rau hauv lub qhov, tab sis nws yog ib qho yooj yim ua rau tus number case nyob rau hauv lub qhov nyob rau hauv lub ncoo tom qab kho. , ua rau tsis zoo solderability; Tom qab cua kub leveling, ntug ntawm lub qhov yog foamed thiab roj raug tshem tawm. Cov txheej txheem no tau txais kev tswj hwm ntawm cov txheej txheem yog qhov nyuaj, thiab cov txheej txheem engineers yuav tsum tau txais cov txheej txheem tshwj xeeb thiab cov kev ntsuas kom ntseeg tau qhov zoo ntawm cov qhov ntsaws.
2.3 Aluminium phaj plug qhov, tsim, pre-kho, sib tsoo phaj, ces solder daim npog qhov ncauj ntawm lub phaj nto
Siv lub tshuab CNC drilling los laum tawm cov ntawv txhuas uas xav tau lub qhov ntsaws los ua ib qho screen, nruab rau ntawm lub tshuab luam ntawv hloov pauv rau lub qhov ntsaws, lub qhov ntsaws yuav tsum puv, thiab nws yog qhov zoo dua rau protrude ntawm ob sab. , thiab tom qab ntawd tom qab kho, lub phaj yog av rau saum npoo. Cov txheej txheem ntws yog: kev kho ua ntej - ntsaws qhov - ua ntej ci - kev loj hlob - ua ntej-kho - board nto solder daim npog qhov ncauj Txij li cov txheej txheem no siv plug qhov curing kom paub meej tias lub qhov ntawm lub qhov tsis poob roj los yog tawg tom qab HAL, tab sis tom qab. HAL, Tin hlaws muab zais rau hauv lub qhov thiab tin ntawm lub qhov yog qhov nyuaj los daws kom tiav, yog li ntau tus neeg siv khoom tsis lees txais lawv.
2.4 Solder masking thiab plugging ntawm lub rooj tsavxwm yog ua tiav tib lub sijhawm
Txoj kev no siv lub vijtsam 36T (43T), ntsia rau ntawm lub tshuab luam ntawv tshuaj ntsuam, siv lub phaj rov qab los yog lub txaj ntsia thawv, thiab ntsaws tag nrho cov ntawm qhov thaum ua tiav lub rooj tsavxwm. Cov txheej txheem ntws yog: ua ntej ua ntej - silk screen - -Pre-baking-- raug-- txhim kho-- kho cov txheej txheem no siv sij hawm luv luv thiab muaj kev siv ntau ntawm cov khoom siv, uas tuaj yeem xyuas kom meej tias lub qhov ntawm lub qhov tsis tso cov roj thiab lub qhov ntawm lub qhov yog tsis tinned tom qab cua kub leveled. Txawm li cas los xij, vim yog kev siv cov tshuaj pleev ib ce rau kev ntsaws, Muaj ntau cov huab cua hauv qhov ntawm lub qhov. Thaum kho, huab cua nthuav dav thiab tawg los ntawm lub npog ntsej muag, ua rau voids thiab unevenness. Yuav muaj ib qho me me ntawm ntawm qhov zais tin nyob rau hauv cov cua kub leveling. Tam sim no, tom qab ntau qhov kev sim, peb lub tuam txhab tau xaiv ntau hom inks thiab viscosities, kho lub siab ntawm silk screen, thiab lwm yam, pib daws lub qhov thiab qhov tsis sib xws ntawm lub viav vias, thiab tau txais cov txheej txheem no rau ntau lawm.