Xov xwm
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Nphav
Kev raug txhais tau hais tias nyob rau hauv lub irradiation ntawm ultraviolet lub teeb, lub photoinitiator absorbs lub teeb lub zog thiab decomposes mus rau hauv dawb radicals, thiab cov dawb radicals ces pib lub photopolymerization monomer mus nqa tawm lub polymerization thiab crosslinking cov tshuaj tiv thaiv. Kev nthuav tawm yog feem ntau nqa ...Nyeem ntxiv -
Dab tsi yog kev sib raug zoo ntawm PCB thaiv, los ntawm lub qhov thiab lub peev xwm nqa tam sim no?
Kev sib txuas hluav taws xob ntawm cov khoom ntawm PCBA yog ua tiav los ntawm cov ntawv xov tooj tooj liab thiab cov qhov ntawm txhua txheej. Kev sib txuas hluav taws xob ntawm cov khoom ntawm PCBA yog ua tiav los ntawm cov ntawv xov tooj tooj liab thiab cov qhov ntawm txhua txheej. Vim cov khoom sib txawv ...Nyeem ntxiv -
Muaj nuj nqi qhia txog txhua txheej ntawm ntau txheej PCB Circuit Board
Multilayer circuit boards muaj ntau hom kev ua haujlwm txheej, xws li: txheej tiv thaiv, silk screen txheej, teeb liab txheej, txheej sab hauv, thiab lwm yam. Koj puas paub ntau npaum li cas txog cov txheej no? Kev ua haujlwm ntawm txhua txheej yog txawv, cia peb saib seb qhov haujlwm ntawm txhua qib h...Nyeem ntxiv -
Taw qhia thiab qhov zoo thiab qhov tsis zoo ntawm ceramic PCB board
1. Vim li cas thiaj siv cov khoom siv hluav taws xob ceramic Ordinary PCB feem ntau yog ua los ntawm cov ntawv ci tooj liab thiab substrate bonding, thiab cov khoom siv substrate feem ntau yog iav fiber ntau (FR-4), phenolic resin (FR-3) thiab lwm yam ntaub ntawv, nplaum feem ntau yog phenolic, epoxy. , thiab lwm yam. Nyob rau hauv cov txheej txheem ntawm PCB ua vim thermal stre...Nyeem ntxiv -
Infrared + cua kub reflow soldering
Nyob rau hauv nruab nrab-1990s, muaj ib tug qauv hloov mus rau infrared + cua kub cua sov nyob rau hauv reflow soldering nyob rau hauv Nyiv. Nws yog rhuab los ntawm 30% infrared rays thiab 70% cua kub raws li lub tshav kub cab kuj. Lub infrared kub cua reflow qhov cub zoo sib xyaw ua ke qhov zoo ntawm infrared reflow thiab yuam convection cua kub r ...Nyeem ntxiv -
PCBA yog dab tsi?
PCBA ua tiav yog cov khoom tiav ntawm PCB liab qab board tom qab SMT thaj, DIP plug-in thiab PCBA xeem, kev soj ntsuam zoo thiab kev sib dhos, hu ua PCBA. Cov neeg koom siab muab cov txheej txheem ua haujlwm rau cov kws tshaj lij PCBA ua lub Hoobkas, thiab tom qab ntawd tos rau cov khoom tiav ...Nyeem ntxiv -
Etching
PCB board etching txheej txheem, uas siv cov txheej txheem tshuaj etching rau corrode qhov chaw tsis muaj kev tiv thaiv. Zoo li kev khawb ib lub trench, ib txoj kev siv tau tab sis tsis muaj txiaj ntsig. Hauv cov txheej txheem etching, nws kuj tau muab faib ua cov txheej txheem zaj duab xis zoo thiab cov txheej txheem ua yeeb yaj kiab tsis zoo. Txoj kev ua yeeb yaj kiab zoo...Nyeem ntxiv -
Luam tawm Circuit Board Ntiaj Teb Kev Lag Luam Tshaj Tawm 2022
Cov neeg tseem ceeb hauv kev lag luam luam tawm Circuit Board yog TTM Technologies, Nippon Mektron Ltd, Samsung Electro-Mechanics, Unimicron Technology Corporation, Advanced Circuits, Tripod Technology Corporation, DAEDUCK ELECTRONICS Co. Ltd., Flex Ltd., Eltek Ltd, thiab Sumitomo Electric Industries . Lub ntiaj teb no...Nyeem ntxiv -
1. DIP pob
DIP pob (Dual In-line Package), tseem hu ua dual in-line ntim tshuab, hais txog kev sib xyaw ua ke ntawm cov chips uas tau ntim rau hauv ob daim ntawv. Tus naj npawb feem ntau tsis tshaj 100. Ib DIP ntim CPU nti muaj ob kab ntawm tus pins uas yuav tsum tau muab tso rau hauv lub qhov (socket) nti nrog ...Nyeem ntxiv -
Qhov sib txawv ntawm FR-4 Khoom thiab Rogers Khoom
1. Cov khoom siv FR-4 yog pheej yig dua li cov khoom siv Rogers 2. Rogers cov khoom muaj zaus ntau dua piv rau cov khoom siv FR-4. 3. Df lossis dissipation yam ntawm cov khoom siv FR-4 yog siab dua li ntawm Rogers cov khoom, thiab cov teeb liab poob ntau dua. 4. Nyob rau hauv cov nqe lus ntawm impedance stability, Dk tus nqi ntau...Nyeem ntxiv -
Vim li cas thiaj xav tau npog nrog kub rau PCB?
1. Nto PCB: OSP, HASL, Lead-free HASL, Immersion Tin, ENIG, Immersion Silver, Hard kub plating, Plating kub rau tag nrho lub rooj tsavxwm, kub ntiv tes, ENEPIG… OSP: tus nqi qis, zoo solderability, hnyav cia, Lub sij hawm luv luv, ib puag ncig technology, zoo vuam, du... HASL: feem ntau nws yog m...Nyeem ntxiv -
Organic Antioxidant (OSP)
Muaj feem xyuam: Nws kwv yees li ntawm 25% -30% ntawm PCBs tam sim no siv cov txheej txheem OSP, thiab qhov kev faib ua feem tau nce siab (nws zoo li OSP txheej txheem tam sim no tau dhau ntawm cov tshuaj tsuag tin thiab qib thawj). Cov txheej txheem OSP tuaj yeem siv rau ntawm cov cuab yeej siv hluav taws xob tsawg lossis cov khoom siv high-tech PCBs, xws li ib leeg-si ...Nyeem ntxiv
