Conductive qhov Via qhov tseem hu ua via 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 txhuas daim ntawv txuas txuas tau hloov pauv, thiab lub rooj tsav xwm Circuit Court saum npoo ntawm lub npog ntsej muag thiab ntsaws yog ua tiav nrog cov mesh dawb.qhov.ruaj khov ntau lawm thiab txhim khu kev qha zoo.

Via qhov plays lub luag hauj lwm ntawm interconnection thiab conduction ntawm circuits.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 ntawm cov txheej txheem luam ntawv board manufacturing thiab nto mount technology.Ntawm lub qhov ntsaws tshuab tau los ua, thiab yuav tsum ua tau raws li cov cai hauv qab no tib lub sijhawm:

(1) Muaj tooj liab nyob rau hauv lub qhov ntawm lub qhov, thiab lub npog ntsej muag tuaj yeem ntsaws lossis tsis ntsaws;

(2) Yuav tsum muaj cov tin thiab txhuas nyob rau hauv lub qhov, nrog rau tej yam thickness yuav tsum tau (4 microns), thiab tsis muaj solder daim npog qhov ncauj number case yuav tsum tau nkag mus rau hauv lub qhov, ua rau tin hlaws dai nyob rau hauv lub qhov;

(3) Lub qhov los ntawm lub qhov yuav tsum muaj lub ntsej muag lub ntsej muag ntsaws qhov, opaque, thiab yuav tsum tsis txhob muaj tin rings, tin hlaws, thiab qhov yuav tsum tau flatness.

Nrog rau kev txhim kho cov khoom siv hluav taws xob hauv kev taw qhia ntawm "nyias, luv, thiab me me" kuj tau tsim mus rau qhov siab thiab qhov nyuaj.Yog li ntawd, ib tug loj tus naj npawb ntawm SMT thiab BGA PCBs tau tshwm sim, thiab cov neeg muas zaub yuav tsum tau ntsaws thaum mounting Cheebtsam, feem ntau suav nrog tsib lub zog:

(1) Tiv thaiv cov tin kom dhau los ntawm cov khoom siv saum npoo los ntawm lub qhov kom ua rau luv luv thaum lub PCB yog yoj soldered;tshwj xeeb tshaj yog thaum peb muab tso rau ntawm BGA ncoo, peb yuav tsum xub ua lub qhov ntsaws thiab tom qab ntawd kub-plated los pab txhawb BGA soldering.

(2) Tsis txhob flux residue hauv qhov ntawm qhov;

(3) Tom qab qhov chaw mounting ntawm lub tshuab hluav taws xob thiab kev sib dhos ntawm cov khoom tiav, PCB yuav tsum tau nqus los ua qhov tsis zoo ntawm lub tshuab kuaj kom tiav:

(4) Tiv thaiv cov nplaum nplaum nplaum los ntawm kev ntws mus rau hauv lub qhov, ua rau tsis muaj kev sib tsoo thiab cuam tshuam rau qhov chaw;

(5) Tiv thaiv cov pob tin los ntawm popping thaum lub sij hawm yoj soldering, ua rau luv luv Circuit Court.

Realization ntawm Conductive Qhov Plugging txheej txheem

Rau saum npoo mount boards, tshwj xeeb tshaj yog cov mounting ntawm BGA thiab IC, ntawm lub qhov ntsaws yuav tsum tiaj tus, convex thiab concave ntxiv los yog rho tawm 1mil, thiab yuav tsum tsis muaj liab tin ntawm ntug ntawm lub qhov;Lub viav vias qhov zais lub pob tin, txhawm rau kom ncav cuag tus neeg siv khoom raws li qhov yuav tsum tau ua, cov txheej txheem ntawm lub qhov ntsaws ntsaws tuaj yeem piav qhia ntau yam, cov txheej txheem ntws tau ntev tshwj xeeb, cov txheej txheem tswj tau nyuaj, thiab cov roj feem ntau poob thaum lub sijhawm. huab cua kub leveling thiab ntsuab roj solder kuj kuaj;teeb meem xws li roj tawg tom qab solidification tshwm sim.Tam sim no raws li cov xwm txheej tiag tiag ntawm kev tsim khoom, ntau cov txheej txheem ntsaws ntawm PCB tau sau tseg, thiab qee qhov kev sib piv thiab kev piav qhia tau ua hauv cov txheej txheem thiab 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 qhov chaw thiab qhov ntawm lub rooj tsav xwm luam tawm, thiab cov khoom seem yog coated sib npaug ntawm cov ntaub qhwv, cov kab uas tsis muaj zog thiab cov ntsiab lus ntim, uas yog txoj kev kho saum npoo ntawm cov ntawv luam tawm Circuit Board ib qho.

1. Lub qhov ntsaws txheej txheem tom qab cua kub leveling
Cov txheej txheem ntws yog: board nto solder daim npog qhov ncauj → HAL → ntsaws qhov → kho.Cov txheej txheem tsis-plug yog saws rau kev tsim khoom.Tom qab cov cua kub yog leveled, lub txhuas ntawv tshuaj ntsuam los yog tus number case thaiv cov ntxaij vab tshaus yog siv los ua kom tiav ntawm lub qhov plugging xav tau los ntawm cov neeg muas zaub rau tag nrho cov fortresses.Plug qhov number case tuaj yeem yog tus number case 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 plug qhov 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 los ntawm qhov yuav tsis poob roj tom qab cua kub yog leveled, tab sis nws yog ib qho yooj yim uas yuav ua rau lub plugging number case kom paug cov board nto thiab tsis sib xws.Cov neeg siv khoom muaj feem xyuam rau cov khoom siv cuav (tshwj xeeb tshaj yog nyob rau hauv BGA) thaum mounting.Yog li ntau tus neeg siv khoom tsis lees txais cov qauv no.

2. Cua kub theem txheej txheem ntawm pem hauv ntej plug qhov

2.1 Siv cov ntawv txhuas los ntsaws lub qhov, khov kho, thiab polish lub rooj tsavxwm kom hloov cov duab

Cov txheej txheem thev naus laus zis no siv cov lej tswj xyuas lub tshuab drilling los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws los ua ib qho screen, thiab ntsaws lub qhov los xyuas kom meej tias lub qhov ntawm lub qhov ntsaws yog tag nrho.Lub plug qhov number case kuj tseem siv tau nrog tus number case thermosetting.Nws cov yam ntxwv yuav tsum siab hardness., Lub shrinkage ntawm cov resin yog me me, thiab lub zog sib txuas nrog lub qhov phab ntsa yog qhov zoo.Cov txheej txheem ntws yog: kev kho ua ntej → ntsaws qhov → sib tsoo phaj → qauv hloov → etching → board nto solder daim npog qhov ncauj

Txoj kev no tuaj yeem xyuas kom meej tias lub qhov ntsaws ntawm lub qhov ntawm lub qhov yog tiaj tus, thiab yuav tsis muaj teeb meem zoo xws li cov roj tawg thiab cov roj poob rau ntawm ntug ntawm lub qhov thaum leveling nrog cua kub.Txawm li cas los xij, cov txheej txheem no yuav tsum tau ua kom tuab ntawm tooj liab ib zaug los ua kom cov tooj liab tuab ntawm lub qhov phab ntsa raws li tus neeg siv khoom tus qauv.Yog li ntawd, qhov yuav tsum tau ua rau tooj liab plating ntawm tag nrho lub rooj tsavxwm yog siab heev, thiab cov kev ua tau zoo ntawm lub phaj sib tsoo tshuab kuj yog siab heev, kom ntseeg tau tias cov resin ntawm tooj liab nto raug tshem tawm tag nrho, thiab tooj liab nto huv si thiab tsis muaj kuab 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 tsis siv ntau ntawm cov txheej txheem no hauv PCB factories.

2.2 Tom qab ntsaws lub qhov nrog cov ntawv txhuas, ncaj qha tshuaj ntsuam-luam lub rooj tsavxwm saum npoo npog lub ntsej muag

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 tshuab luam ntawv los ntsaws lub qhov, thiab nres nws tsis pub dhau 30 feeb tom qab lub ntsaws tiav, thiab siv 36T screen ncaj qha rau saum npoo ntawm lub rooj tsavxwm.Cov txheej txheem ntws yog: ua ntej kho-plug qhov-silk screen-pre-baking-exposure-development-kho

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 zoo ib yam.Tom qab cov cua kub yog leveled, nws muaj peev xwm xyuas kom meej tias lub qhov ntawm lub qhov yog tsis tinned thiab tin hlaws yuav tsis muab zais rau hauv lub qhov, tab sis nws yog ib qho yooj yim ua rau tus number case nyob rau hauv lub qhov tom qab kho.Cov pads soldering ua rau tsis zoo solderability;tom qab cua kub yog leveled, cov npoo ntawm vias npuas thiab poob roj.Nws yog ib qho nyuaj rau kev siv cov txheej txheem no los tswj kev tsim khoom, thiab nws yog ib qho tsim nyog rau cov txheej txheem engineers siv cov txheej txheem tshwj xeeb thiab cov kev ntsuas los xyuas kom meej qhov zoo ntawm lub qhov ntsaws.

2.3 Cov ntawv txhuas yog ntsaws rau hauv qhov, tsim, kho ua ntej, thiab polished, thiab tom qab ntawd lub npog ntsej muag yog ua rau ntawm qhov chaw.

Siv lub tshuab CNC drilling los laum tawm cov ntawv txhuas uas yuav tsum tau ntsaws qhov los ua ib qho screen, nruab rau ntawm lub tshuab luam ntawv hloov pauv rau ntsaws qhov.Lub qhov ntsaws ntsaws yuav tsum yog tag nrho thiab protruding ntawm ob sab, thiab tom qab ntawd solidify thiab grind lub rooj tsavxwm rau saum npoo.Cov txheej txheem ntws yog: pre-kho-plug qhov-pre-baking-development-pre-curing-board nto solder mask

Vim tias cov txheej txheem no siv qhov ntsaws qhov kho kom ntseeg tau tias lub qhov ntawm lub qhov tsis poob roj lossis tawg tom qab HAL, tab sis tom qab HAL, nws yog qhov nyuaj los daws qhov teeb meem ntawm tin hlaws cia hauv lub qhov ntawm lub qhov thiab cov tin ntawm lub qhov, yog li ntau tus neeg muas zaub tsis txais nws.

2.4 Lub npog ntsej muag thiab lub qhov ntsaws 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 ncoo lossis lub txaj ntawm tes, thiab thaum ua tiav lub rooj tsavxwm saum npoo, tag nrho cov los ntawm qhov tau ntsaws.Cov txheej txheem ntws yog: pretreatment-screen printing- -Pre-baking-exposure-development-curing.

Lub sijhawm txheej txheem luv luv thiab cov cuab yeej siv cov khoom siv yog siab.Nws tuaj yeem xyuas kom meej tias qhov ntawm qhov yuav tsis plam roj tom qab cua kub theem, thiab qhov ntawm qhov yuav tsis raug tinned.Txawm li cas los xij, vim yog siv cov tshuaj pleev ib ce rau kev ntsaws lub qhov, muaj huab cua ntau hauv cov ntawm qhov., Cov huab cua nthuav dav thiab tawg los ntawm lub npog ntsej muag, ua rau cov kab noj hniav thiab tsis sib xws.Yuav muaj ib tug me me ntawm los ntawm qhov muab zais nyob rau hauv cov huab cua kub leveling.Tam sim no, tom qab ntau qhov kev sim, peb lub tuam txhab tau xaiv ntau hom inks thiab viscosity, kho lub siab ntawm kev tshuaj ntsuam luam ntawv, thiab lwm yam, thiab pib daws cov voids thiab unevenness ntawm lub vias, thiab tau txais cov txheej txheem no rau pawg. ntau lawm.