Copper thickness thiab tus qauv yuav tsum tau rau 2- txheej PCB board
Raws li ib qho ntawm cov khoom siv hluav taws xob tseem ceeb hauv cov khoom siv hluav taws xob, 2- txheej PCB boards tau dhau los ua kev siv ntau hauv kev lag luam hluav taws xob. Lub thickness ntawm tooj liab yuav tsum tau rau PCB board tuaj yeem hais kom nkag siab txog kev ua tau zoo thiab kev ua haujlwm zoo ntawm PCB board thiab txawm tias tag nrho cov khoom siv hluav taws xob. Tom ntej no, cia peb saib cov ncauj lus kom ntxaws ntawm tooj liab tuab thiab cov qauv yuav tsum tau ua rau 2- txheej PCB board.
Ua ntej, cia peb nkag siab cov qauv ntawm 2- txheej PCB board. A 2- txheej PCB board hais txog lub rooj tsav xwm hauv Circuit Court nrog tsuas yog ib txheej tooj liab sab hauv nruab nrab, uas tuaj yeem sib sau ua ke ntawm ob sab. Feem ntau, tooj liab thickness yog hais txog lub thickness ntawm lub puab tooj liab txheej, uas ncaj qha cuam tshuam lub peev xwm kis tau tus mob tam sim no thiab thermal conductivity ntawm PCB board. Feem ntau hais lus, tooj liab tuab ntawm 2- txheej PCB board tuaj yeem muab faib ua cov ntsiab lus hauv qab no:
1.1oz tooj liab thickness: 35 μ m, uas yog tam sim no feem ntau siv tooj liab thickness nyob rau hauv kev ua lag luam. Nws muaj tus nqi-zoo thiab tsim nyog rau kev tsim cov khoom siv hluav taws xob feem ntau.
2.2oz tooj liab thickness: 70 μ m, uas yog ib qho kev xaiv rau cov tam sim no thiab high kub generating Cheebtsam. Nws muaj kev sib kis tau zoo dua tam sim no thiab thermal conductivity, ua rau nws tsim nyog rau cov khoom siv hluav taws xob uas xav tau cov khoom siv hluav taws xob siab.
Tau kawg, ntxiv rau ob qhov kev qhia tshwj xeeb ntawm tooj liab tuab no, muaj lwm yam tooj liab thicknesses muaj rau xaiv, xws li 0.5oz, 3oz, thiab lwm yam. Nws yog ib qho tseem ceeb heev uas yuav tsum xaiv qhov tsim nyog tooj liab thickness raws li qhov xav tau tiag tiag. thiab cov kev cai ntawm engineers.
Thaum tsim ib qho 2- txheej PCB pawg thawj coj saib, ntxiv rau qhov tuab ntawm tooj liab, muaj lwm cov txheej txheem uas yuav tsum tau sau tseg. Nov yog qee cov ntsiab lus:
1. Kab dav thiab kab sib nrug: Feem ntau, txoj kab dav thiab kab sib nrug ntawm ob txheej PCB board tuaj yeem ncav cuag 6/6 (mil). Tab sis yog tias muaj kev lag luam xav tau tshaj li tus qauv no, kev hloov kho tuaj yeem ua tau raws li qhov xwm txheej tiag tiag.
2. Pad txoj kab uas hla: Cov pad diameters tuaj yeem ncav cuag li 10 mil. Raws li qhov kev sib txuas ntawm cov khoom siv vuam, nws cov qauv tsim thiab kev ua haujlwm zoo yog ncaj qha ntsig txog thiab yuav tsum tau saib xyuas tshwj xeeb.
3. Tin spraying txheej: Cov tin spraying txheej ntawm ob txheej PCB board yog ib txheej uas pab tiv thaiv Circuit Court, nce conductivity, thiab lwm yam dej num. Nws tuaj yeem xaiv tau ntawm 0 8-1oz.
4. Vuam zaj duab xis txheej: Hauv kev tsim cov txheej txheem vuam txheej ntawm PCB pawg thawj coj saib, feem ntau nws yog qhov yuav tsum tau ua raws li IPC-Class -2 tus qauv kom muaj kev ruaj ntseg thiab kev ntseeg siab ntawm vuam zoo.
Hauv cov ntsiab lus, cov thickness ntawm tooj liab thiab cov qauv yuav tsum muaj ntawm 2- txheej PCB pawg thawj coj ua lub luag haujlwm txiav txim siab hauv qhov zoo thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob. Xaiv qhov tsim nyog tooj liab tuab thiab ua raws li cov qauv tsim nyog yuav pab txhim kho kev ntseeg tau thiab ruaj khov ntawm cov khoom siv hluav taws xob. Thaum tsim ib qho 2- txheej PCB pawg thawj coj saib, nws tseem yuav tsum tau muab cov kev xav tau tiag tiag thiab cov kws tshaj lij kev taw qhia kom ua tiav cov txiaj ntsig zoo tshaj plaws.