Cov ntawv luam tawm hluav taws xob (PCB) yog cov khoom siv hluav taws xob yooj yim rau hauv ntau yam hluav taws xob thiab khoom siv. PCB qee zaum hu ua PwB (Cov Hlau Hlau Board). Nws siv los ua ntau dua hauv Hong Kong thiab Nyij Pooj ua ntej, tab sis tam sim no nws tsawg dua (qhov tseeb, PCB thiab PWB sib txawv). Nyob rau sab hnub poob thiab cheeb tsam, feem ntau yog pcb. Nyob rau sab hnub tuaj, nws muaj lub npe sib txawv vim txawv teb chaws thiab cheeb tsam txawv. Piv txwv li, nws feem ntau hu ua cov luam tawm hluav taws xob hauv Suav teb (yav dhau los hu cov luam tawm hluav taws xob board), thiab feem ntau nws hu ua PCB hauv Taiwan. Circuit Court boards tau hu ua hluav taws xob (Circuit Court) substrates hauv Nyij Pooj thiab subttrates hauv South Kauslim.

PCB yog kev txhawb nqa hluav taws xob Cheebtsam hluav taws xob thiab cov cab kuj ntawm cov hluav taws xob sib txuas, feem ntau yog txhawb nqa thiab cuam tshuam nrog. Purely los ntawm sab nraud, txheej txheej sab nraud ntawm Circuit Court Board feem ntau muaj peb xim: kub, nyiaj, thiab lub teeb liab. Cov nqe ntawm cov nqe: Kub yog qhov kim tshaj plaws, nyiaj yog ob, thiab lub teeb liab yog cov pheej yig tshaj. Txawm li cas los xij, cov xaim sab hauv cov kab hluav taws xob feem ntau yog qhov zoo nkauj tooj liab, uas yog cov liab qab tooj liab.

Nws tau hais tias tseem muaj ntau cov hlau uas muaj nqi ntawm PCB. Nws tau tshaj tawm tias, nyob rau nruab nrab, txhua tus xov tooj ntse muaj 0.05g kub, 0.26g nyiaj, thiab 12.6g tooj liab. Cov KUB cov ntsiab lus ntawm lub laptop yog 10 zaug ntawm lub xov tooj txawb!

Raws li kev txhawb nqa hluav taws xob Cheebtsam hluav taws xob, PCBs xav tau cov khoom sib xyaw rau saum npoo av, thiab ib feem ntawm lub tooj liab txheej yuav tsum tau ua rau soldering. Cov ntawv tooj liab no yog hu ua cov ntaub qhwv. Cov ntaub qhwv feem ntau yog duab dhos lossis ib puag ncig nrog thaj chaw me me. Yog li ntawd, tom qab siv lub ntsej muag Taus Taus yog pleev xim, tsuas yog tooj liab ntawm cov ntaub qhwv tau raug rau huab cua.

Tus tooj liab siv hauv PCB yog yooj yim oxidized. Yog tias tus tooj liab ntawm cov ntaub qhwv yog oxidized, nws yuav tsis tsuas yog tsis yooj yim nce ntxiv, uas yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom kawg. Yog li ntawd, lub ncoo yog plated nrog inert hlau kub, lossis saum npoo yog them nrog ib txheej nyiaj los ntawm cov txheej txheem tooj liab los tiv thaiv lub ncoo los tiv thaiv cov huab cua. Tiv thaiv kev oxidation thiab tiv thaiv cov ntaub qhwv, kom nws tuaj yeem ua kom cov txiaj ntsig zoo hauv cov txheej txheem soldering tom ntej.

1. PCB tooj liab clad laminate
Tooj liab clad laminate yog cov khoom siv zoo li impregnating nrog rau ib sab lossis ob sab nrog tooj liab ntawv thiab kub nias.
Siv khob iav fiber ntau-raws li tooj liab Laminate ua piv txwv. Nws lub ntsiab ntawv raw yog tooj liab ntawv ntawv ci, iav fiber ntau, thiab epoxy cob, uas tus as khauj uas muaj txog 32%, 29% ntawm cov khoom lag luam, feem.

Circuit Court Board Hoobkas

Tooj liab Laminate yog cov khoom siv yooj yim ntawm cov khoom lag luam hluav taws xob yog qhov tsis tseem ceeb rau cov khoom lag luam hluav taws xob feem ntau kom ua tiav Circuit Courtection. Nrog rau kev txhim kho txuas ntxiv ntawm cov thev naus laus zis, qee qhov tshwj xeeb hluav taws xob tooj liab clad laminates tuaj yeem siv nyob rau hauv xyoo tsis ntev los no. Kev tsim khoom ncaj qha luam tawm cov khoom hluav taws xob luam tawm. Cov neeg saib xyuas uas tau siv hauv cov ntawv luam tawm Circuit Court feem ntau yog ua los ntawm cov ntawv ci-li ua kom zoo nkauj, uas yog, tooj liab ntawv nyob rau hauv ib tug nqaim kev nkag siab.

2. PCB rau cov khoom siv kub kub

Yog tias kub thiab tooj liab nyob rau hauv kev sib cuag ncaj qha, yuav tsum muaj cov txheej txheem hluav taws xob, yog li cov khoom siv hluav taws xob, yog li cov khoom siv hluav taws xob, yog li cov khoom siv hluav taws xob, yog li cov khoom siv hluav taws xob "yog li cov khoom siv hluav taws xob"
Qhov sib txawv ntawm cov kub nyuaj thiab muag muag muag yog cov muaj pes tsawg ntawm cov txheej dhau ntawm cov kub uas tau plated. Thaum kub plating, koj tuaj yeem xaiv rau electroplate ntshiab kub lossis alloy. Vim tias lub hardness ntawm cov kub ntshiab yog tus mos muag, nws tseem hu ua "mos kub". Vim tias "Kub" tuaj yeem tsim cov zoo alloy nrog "Aluminoy", COB yuav tshwj xeeb tshaj plaws ntawm cov txheej txheej ntshiab ntawm cov roj av. Ib qho ntxiv, yog tias koj xaiv rau cov pob hluav taws xob hluav taws xob-Nickel Alloy lossis Kub-Cobalt Alloy, vim hais tias cov hmoov av yuav nyuaj dua li cov ntshiab kub, nws tseem hu ua "nyuaj".

Circuit Court Board Hoobkas

Cov kub-plated txheej yog dav siv nyob rau hauv cov ntawv tivthaiv, cov ntiv tes kub, thiab cov neeg sib txuas ntawm cov Circuit Court Board. Cov Motherboards ntawm cov xov tooj txawb xov tooj hluav taws xob xov tooj hluav taws xob cov laug cam, cov pob roj av thiab cov laug cam thiab cov laug cam tsis yog kub.

Kub yog kub tiag tiag kub. Txawm hais tias tsuas yog ib txheej nyias nyias yog plated, nws twb muaj npe rau ze li 10% ntawm tus nqi ntawm cov nqi circuit Court board. Kev siv Kub uas yog ib txheej plating yog ib qho rau kev txhawb nqa vuam thiab lwm qhov rau kev tiv thaiv corrosion. Txawm tias cov ntiv tes kub ntawm lub cim xeeb uas tau siv rau ntau xyoo tseem flickers ua ntej. Yog tias koj siv tooj liab, txhuas, lossis hlau, nws yuav xeb sai sai rau hauv ib pawg ntawm cov scraps. Tsis tas li ntawd, tus nqi ntawm cov kub-plated phaj yog tus kuj muaj siab, thiab lub zog vuam yog neeg pluag. Vim tias Electroless Nickel plating txheej txheem yog siv, qhov teeb meem ntawm cov disks dub yuav tshwm sim. Lub npib tsib xee yuav oxidize dhau sijhawm, thiab kev ntseeg tau ntev kuj yog ib qho teeb meem.

3. PCB Immersion Silcuit Coup
Immersion cov nyiaj yog pheej yig dua li cov kub kub. Yog tias PCB muaj kev ua haujlwm sib txuas thiab xav tau txo tus nqi, siv cov nyiaj tau zoo; txuas nrog imgersion nyiaj lub tiaj tiaj thiab tiv tauj, ces cov txheej txheem Immersion nyiaj yuav tsum tau xaiv.

Immersion nyiaj muaj ntau daim ntawv thov hauv kev sib txuas lus cov khoom lag luam, tsheb, thiab lub computer peripherals, thiab nws kuj muaj kev siv hauv kev tsim qauv ntsuas hluav taws xob siab. Txij li thaum cov nyiaj tau los siv hluav taws xob zoo uas tsis muaj peev xwm sib phim, nws kuj tseem siv tau hauv cov teeb tsa siab-zaus. EMS pom zoo siv cov txheej txheem nyiaj ntau ntxiv vim tias nws yooj yim sib dhos thiab muaj kev soj ntsuam zoo dua. Txawm li cas los xij, vim qhov tsis xws luag xws li tarnishing thiab yas koom sib koom ua ke, txoj kev loj hlob ntawm immersion tau qeeb (tab sis tsis poob qis).

loj hlob
Cov ntawv luam tawm Circuit Court yog siv los ua qhov kev sib txuas cov khoom siv hluav taws xob, thiab cov khoom lag luam zoo ntawm cov khoom siv hluav taws xob yuav cuam tshuam ncaj qha rau cov khoom siv hluav taws xob. Ntawm lawv, cov plating zoo ntawm cov ntawv luam tawm hluav taws xob yog tshwj xeeb yog ib qho tseem ceeb. Electroplating tuaj yeem txhim kho kev tiv thaiv, solderability, conductivity thiab hnav tsis kam ntawm Circuit Court Board. Nyob rau hauv kev tsim cov txheej txheem tsim khoom lag luam Circuit Court Boards, Electroplating yog ib kauj ruam tseem ceeb. Qhov zoo ntawm cov electroplating yog cuam tshuam nrog kev ua tiav lossis tsis ua tiav ntawm tag nrho cov txheej txheem thiab kev ua tau zoo ntawm Circuit Board.

Cov txheej txheem hluav taws xob tseem ceeb ntawm PCB yog tooj plating, Tin plating, npib tsib xee, plating, kub plating thiab lwm yam. Tooj liab electroplating yog qhov yooj yim plating rau cov hluav taws xob cuam tshuam ntawm cov laug cam hluav taws xob; Tin electropating yog ib qho tsim nyog rau kev tsim cov high-precision circuits raws li cov txheej txheem tiv thaiv corrosion hauv kev coj ua; Nickel Electroplating yog rau electroplate ib tug nickel barrier txheej rau ntawm cov Circuit Court Board kom tiv thaiv tooj liab thiab kub sib nrig sib tog; electroplating kub tiv thaiv kev hla dhau ntawm lub npib tsib xee nyob kom tau raws li kev ua tau zoo ntawm cov soldering thiab corrosion tsis kam ntawm Circuit Court Board.