Daim Ntawv Luam Tawm Circuit Board (PCB), tseem hu ua Printed Circuit Board, yog cov khoom siv hluav taws xob tseem ceeb, yog kev txhawb nqa lub cev ntawm cov khoom siv hluav taws xob, yog cov khoom siv txuas hluav taws xob ntawm cov khoom siv hluav taws xob. Vim tias nws tau tsim los ntawm kev luam ntawv hluav taws xob, nws hu ua “luam tawm” lub rooj tsav xwm hauv Circuit.

Kev faib tawm ntawm PCB

Muaj peb hom tseem ceeb ntawm PCBS:

1. Tib lub vaj huam sib luag

Ntawm ib qho yooj yim PCB, cov khoom nyob ntawm ib sab thiab cov xov hlau nyob rau lwm sab (nyob rau tib sab nrog cov khoom thaj thiab nyob rau lwm sab nrog lub plug-in element). Vim tias cov xaim tshwm ntawm ib sab xwb, PCB hu ua ib leeg-sab. Vim tias ib lub vaj huam sib luag muaj ntau qhov kev txwv nruj rau kev tsim qauv hauv Circuit Court (vim tias tsuas muaj ib sab xwb, cov xov hlau tsis tuaj yeem hla thiab yuav tsum tau taug txoj kev sib cais), tsuas yog siv cov kab hluav taws xob thaum ntxov xwb.

2. Ob chav vaj huam sib luag

Cov laug cam ob tog muaj cov hlua txuas ntawm ob sab ntawm lub rooj tsavxwm, tab sis kev sib txuas hluav taws xob kom raug ntawm ob sab yog qhov tsim nyog siv cov xov hlau ntawm ob sab. Qhov “choj” nruab nrab ntawm cov kab hluav taws xob no hu ua daim qhia kev (VIA). Phau ntawv qhia qhov yog qhov me me hauv PCB uas tau ntim lossis coated nrog cov hlau uas tuaj yeem txuas nrog cov xov hlau ntawm ob sab. Vim tias thaj tsam ntawm ob lub vaj huam sib luag loj dua ob npaug ntawm ib lub vaj huam sib luag, ob chav vaj huam sib luag daws qhov teeb meem ntawm cov xov hluav taws xob nyob hauv ib lub vaj huam sib luag (nws tuaj yeem coj mus rau lwm sab los ntawm qhov), thiab nws yog qhov tsim nyog rau ntau txoj hauv kev nyuaj tshaj li ib lub vaj huam sib luag.

3. Ib tus neeg sib tw

Txhawm rau txhawm rau txhawm rau thaj tsam uas tuaj yeem ua cov kab hluav taws xob, ntau dua ib leeg-thiab ob tog sib txuas thaiv cov laug cam tau siv rau ntau txheej Txheej. Nrog ob txheej txheej, ob txoj hauv kev rau txheej txheej lossis ob txheej ob txheej, ob ntu ntawm ib txheej txheej ntawm cov ntawv luam tawm hauv Circuit Court, dhau los ntawm txoj haujlwm tso rau thiab hloov cov rwb thaiv tsev cov ntaub ntawv nplaum thiab cov duab sib txuas ua ke raws li tsim qhov xav tau ntawm luam tawm Circuit pawg thawj coj los ua plaub, rau-txheej txheej luam tawm Circuit board, tseem hu ua multilayer luam tawm Circuit board. Tus nab npawb ntawm txheej txheej ntawm lub rooj tsavxwm tsis tau txhais hais tias muaj ob peb txheej thaiv kab thaiv ywj siab. Hauv cov xwm txheej tshwj xeeb, npliag txheej tau ntxiv los tswj cov tuab ntawm lub rooj tsavxwm. Feem ntau, cov txheej txheej yog txawm thiab ob txheej sab nraud suav nrog. Feem ntau cov niam tsev tau tsim nrog plaub txog yim txheej, tab sis kev siv tshuab ze rau 100 txheej ntawm PCBS tuaj yeem ua tau. Feem ntau cov supercomputers loj siv ob peb txheej ntawm motherboards, tab sis lawv tau poob ntawm kev siv vim lawv tuaj yeem hloov los ntawm pawg ntawm cov khoos phis tawj zoo tib yam. Vim tias cov txheej hauv PCB tau sib koom ua ke kom nruj, nws tsis yooj yim pom tus lej tiag, tab sis yog tias koj saib ze ntawm lub motherboard, koj tuaj yeem ua tau.

PCB lub luag haujlwm

Cov cuab yeej siv hluav taws xob siv lub rooj tsav xwm luam tawm, vim yog tib hom kev luam ntawv zoo ib yam, txhawm rau kom zam kev siv xov tooj yuam kev, thiab cov khoom siv hluav taws xob tuaj yeem tso tau lossis teeb tsa ncaj qha, siv lub tshuab tsis siv neeg, tsis siv neeg pom, kom ntseeg tau tias cov khoom siv hluav taws xob zoo, txhim kho kev tsim khoom ua haujlwm, txo tus nqi, thiab kho tau yooj yim.

PCB nta (qhov zoo)

PCBs tau dhau los ua neeg nyiam vim tias lawv muaj ntau qhov tshwj xeeb, suav nrog cov hauv qab no.

Yuav ua tau siab ceev. Tau ntau caum xyoo, PCB ntom tau hloov zuj zus raws li kev sib xyaw ua ke tau txhim kho thiab teeb tsa thev naus laus zis tau txhim kho.

Kev ntseeg siab Dhau los ntawm kev tshuaj xyuas, ntsuas, thiab kev ntsuas hnub nyoog, PCB tuaj yeem lav tau ua haujlwm tau zoo nyob rau lub sijhawm ntev (feem ntau 20 xyoo).

Tsim tau. Rau PCB kev ua tau zoo (hluav taws xob, lub cev, tshuaj lom neeg, khoom siv hluav taws xob, thiab lwm yam) kev xav tau, tuaj yeem tsim tus qauv, qauv qauv, thiab lwm yam kom ua tiav cov qauv tsim ntawm pawg thawj coj saib, sijhawm luv, ua haujlwm tau zoo.

Ua Tau Zoo. Txais yuav kev tswj hwm niaj hnub, tuaj yeem nqa tus qauv, ntsuas (ntau), kev siv tshuab, thiab ntxiv rau kev tsim khoom, lav cov khoom lag luam zoo ib yam.

Testability. Ib txoj hauv kev sim ua tiav, cov qauv ntsuas, ntau yam cuab yeej ntsuas, thiab cov cuab yeej tau tsim los ntsuas thiab ntsuas tus PCB cov khoom tsim nyog thiab kev pab lub neej.

Kev sib sau ua ke. Cov khoom lag luam PCB tsis tsuas yog pab txhawb cov txheej txheem sib dhos ntawm ntau yam khoom siv tab sis kuj tuaj yeem siv tau, cov khoom loj loj. Nyob rau tib lub sijhawm, PCB thiab ntau yam khoom sib dhos ua ke kuj tseem tuaj yeem sib sau ua ntu loj, tshuab, kom txog rau thaum lub tshuab tag nrho.

Tswj tau. Txij li PCB cov khoom lag luam thiab ntau yam kev sib dhos ua ke tau ua tus qauv tsim thiab tsim khoom ntau, cov khoom no kuj tseem ua qauv. Yog li ntawd, thaum lub kaw lus ua tsis tiav, nws tuaj yeem hloov pauv sai, yooj yim, thiab yoog raws kom rov ua haujlwm tau sai. Tau kawg, yuav hais ntau ntxiv. Xws li cov txheej txheem miniaturization, hnyav, teeb liab kis tau tus mob ceev, thiab lwm yam.