PCB (luam tawm Circuit Board)
PCB (luam tawm Circuit Board)
PCB Taw Qhia
Cov ntawv luam tawm Circuit Board yog tsim los ntawm ib qho insulating hauv qab phaj, ib qho txuas txuas thiab lub ncoo rau kev sib dhos thiab vuam cov khoom siv hluav taws xob, thiab muaj ob txoj haujlwm ntawm cov hluav taws xob hluav taws xob thiab cov phaj hauv qab insulating.Nws tuaj yeem hloov txoj hlua txuas thiab paub txog kev sib txuas hluav taws xob ntawm ntau yam khoom hauv Circuit Court.Nws tsis tsuas yog ua kom yooj yim rau kev sib dhos thiab vuam ntawm cov khoom siv hluav taws xob, txo cov kev ua haujlwm ntawm kev xaim hauv txoj kev ib txwm muaj, thiab txo qis kev siv zog ntawm cov neeg ua haujlwm;nws kuj txo cov tshuab tag nrho Volume, txo cov nqi khoom, thiab txhim kho qhov zoo thiab kev ntseeg siab ntawm cov khoom siv hluav taws xob.Cov ntawv luam tawm Circuit Board muaj cov khoom zoo sib xws, thiab nws tuaj yeem txais tus qauv tsim, uas yog qhov tsim nyog rau kev paub txog kev siv tshuab thiab automation hauv cov txheej txheem ntau lawm.Nyob rau tib lub sijhawm, tag nrho cov ntawv luam tawm Circuit Board uas tau sib sau ua ke thiab debugged tuaj yeem siv los ua cov khoom seem ywj pheej los pab txhawb kev sib hloov thiab kev saib xyuas ntawm tag nrho cov khoom.Tam sim no, cov ntawv luam tawm hluav taws xob tau siv dav hauv kev tsim cov khoom siv hluav taws xob.
Cov ntawv luam tawm ntxov tshaj plaws tau siv cov ntawv ua tooj liab-clad luam ntawv boards.Txij li thaum qhov tshwm sim ntawm semiconductor transistors hauv xyoo 1950, qhov kev thov rau cov ntawv luam tawm tau nce siab.Hauv particular, txoj kev loj hlob sai thiab kev siv dav hauv kev sib xyaw ua ke tau ua kom lub ntim ntawm cov khoom siv hluav taws xob me me thiab me, thiab qhov ceev thiab qhov nyuaj ntawm kev xaim hluav taws xob tau dhau los ua ntau dua thiab ntau dua, uas yuav tsum tau hloov kho tas li ntawm cov ntawv luam tawm.Tam sim no, ntau yam ntawm cov ntawv luam tawm tau tsim los ntawm ib leeg-ib sab boards mus rau ob-sided boards, multilayer boards thiab hloov tau yooj yim;qauv thiab zoo kuj tau tsim rau ultra-siab ceev, miniaturization thiab siab ntseeg;cov txheej txheem tsim qauv tshiab, cov khoom siv tsim thiab Board-ua cov ntaub ntawv thiab cov txheej txheem ua pawg thawj coj mus txuas ntxiv.Nyob rau hauv xyoo tas los no, ntau yam computer-aided design (CAD) luam tawm Circuit Board daim ntawv thov software tau nrov thiab txhawb nqa hauv kev lag luam.Ntawm cov tuam txhab luam ntawv tshwj xeeb, cov tshuab tshuab thiab cov tshuab ua haujlwm tau hloov pauv tag nrho cov kev ua haujlwm.
Keeb kwm
Tus tsim ntawm PCB yog Austrian Paul Eisler (Paul Eisler), xyoo 1936, nws thawj zaug siv lub rooj sib tham hauv xov tooj cua.Xyoo 1943, cov neeg Amelikas feem ntau siv cov thev naus laus zis no rau tub rog xov tooj cua.Xyoo 1948, Tebchaws Meskas tau pom zoo qhov kev tsim kho no rau kev siv lag luam.Txij li thaum nruab nrab-1950s, cov ntawv luam tawm Circuit Board tsuas yog pib siv dav.Cov ntawv luam tawm Circuit Boards tshwm nyob rau hauv yuav luag txhua yam khoom siv hluav taws xob.Yog tias muaj cov khoom siv hluav taws xob hauv qee yam khoom siv, lawv txhua tus tau nruab rau ntawm PCBs ntawm ntau qhov sib txawv.Lub luag haujlwm tseem ceeb ntawm PCB yog txhawm rau txuas ntau yam khoom siv hluav taws xob mus rau qhov kev txiav txim siab hauv Circuit Court thiab ua lub luag haujlwm ntawm kev xa xov xa mus.Nws yog qhov tseem ceeb ntawm kev sib txuas ntawm cov khoom siv hluav taws xob thiab lub npe hu ua "niam ntawm cov khoom siv hluav taws xob".
Khoom Qhia
