- Vim li cas cov ntawv luam tawm Circuit Board xav tau kev tswj hwm impedance?
Vim li cas cov ntawv luam tawm Circuit Board xav tau kev tswj hwm impedance?Hauv cov kab hluav taws xob xaim hluav taws xob ntawm cov khoom siv hluav taws xob, qhov kev tiv thaiv tau ntsib thaum lub teeb liab siab lossis hluav taws xob yoj propagates hu ua impedance.Vim li cas PCB boards yuav tsum tau impedance thaum lub sij hawm tsim cov txheej txheem ntawm Circuit Court board Hoobkas?Cia peb txheeb xyuas los ntawm 4 yam hauv qab no: 1. Lub Rooj Tswjhwm Saib PCB ntawm ...
- Vim li cas feem ntau cov txheej txheem Circuit Court boards yog cov khaubncaws sab nraud povtseg?
Muaj ib sab, ob sab thiab ntau txheej Circuit Court boards.Tus naj npawb ntawm ntau txheej boards tsis txwv.Tam sim no muaj ntau tshaj 100-txheej PCBs.Cov txheej txheem ntau txheej PCB yog plaub txheej thiab rau txheej boards.Tom qab ntawd vim li cas tib neeg thiaj li muaj lus nug "Vim li cas PCB multilayer boards tag nrho cov txheej txheem txawm tias tus lej?
- Ib nrab-qhov Tsim ntawm Circuit Board
Lub metalized ib nrab lub qhov txhais tau hais tias tom qab lub qhov drilling (xws li, gong groove), ces 2nd drilled thiab zoo li tus, thiab thaum kawg ib nrab ntawm lub metalized qhov (groove) yog khaws cia.Txhawm rau tswj kev tsim cov hlau ib nrab ntawm lub qhov rooj, cov tuam txhab tsim hluav taws xob feem ntau siv qee qhov kev ntsuas vim muaj teeb meem ntawm cov txheej txheem ntawm kev sib tshuam ntawm cov hlau ib nrab ntawm qhov thiab cov qhov tsis yog hlau.Metallized ib nrab qhov...
- PCB Nto Tiav Tiav, qhov zoo thiab qhov tsis zoo
Txhua tus neeg koom nrog hauv kev lag luam luam tawm Circuit Board (PCB) nkag siab tias PCBs muaj tooj liab tiav ntawm lawv qhov chaw.Yog tias lawv tsis muaj kev tiv thaiv ces cov tooj liab yuav oxidize thiab deteriorate, ua rau lub rooj tsav xwm Circuit Court siv tsis tau.Qhov saum npoo tiav ua ib qho tseem ceeb ntawm kev sib txuas ntawm cov khoom thiab PCB.Kev ua tiav muaj ob lub luag haujlwm tseem ceeb, los tiv thaiv cov kab hluav taws xob tiv thaiv thiab t ...
- A&Q ntawm PCB (2)
9. Kev daws teeb meem yog dab tsi?Teb: Nyob rau hauv ib qhov deb ntawm 1 hli, qhov kev daws teeb meem ntawm cov kab los yog cov kab sib txuas uas tuaj yeem tsim los ntawm cov yeeb yaj kiab qhuav kuj tuaj yeem qhia los ntawm qhov loj ntawm cov kab lossis qhov sib txawv.Qhov sib txawv ntawm cov yeeb yaj kiab qhuav thiab cov yeeb yaj kiab tiv taus Lub thickness ntawm polyester zaj duab xis yog cuam tshuam.Lub thicker lub resist film txheej, qhov kev daws teeb meem qis dua.Thaum lub teeb ...
- Cov khoom sib txawv ntawm Circuit Board
Lub combustibility ntawm ib yam khoom, tseem hu ua nplaim retardancy, nws tus kheej-extinguishing, nplaim kuj, nplaim kuj, hluav taws kub kuj, flammability thiab lwm yam combustibility, yog ntsuas lub peev xwm ntawm cov khoom los tiv thaiv combustion.Cov qauv ntawm cov khoom siv hluav taws xob yog ignited nrog cov nplaim hluav taws uas ua tau raws li qhov yuav tsum tau ua, thiab cov nplaim taws raug tshem tawm tom qab lub sijhawm teev tseg.Flammability theem yog ...
- Ceramic PCB Board
Ceramic circuit boards yeej ua los ntawm cov khoom siv hluav taws xob ceramic thiab tuaj yeem ua rau ntau yam duab.Ntawm lawv, lub rooj tsav xwm ceramic muaj cov yam ntxwv zoo tshaj plaws ntawm qhov kub thiab txias thiab hluav taws xob rwb thaiv tsev.Nws muaj qhov zoo ntawm cov dielectric tsis tu ncua, tsis tshua muaj dielectric poob, siab thermal conductivity, zoo tshuaj stability, thiab zoo xws li thermal expan ...
- Yuav ua li cas ua pcb hauv vaj huam sib luag?
1. Sab nrauv (clamping side) ntawm Printed Circuit Board vaj huam sib luag yuav tsum tau txais ib lub voj kaw tsim los xyuas kom meej tias PCB jigsaw yuav tsis deformed tom qab tau kho ntawm lub fixture;2. PCB vaj huam sib luag dav ≤260mm (SIEMENS kab) lossis ≤300mm (FUJI kab);Yog tias yuav tsum tau siv cov tshuaj tsis siv neeg, PCB vaj huam sib luag dav × ntev ≤125 hli × 180 hli;3. Cov duab ntawm PCB jigsaw yuav tsum nyob ze rau lub square li poss...
- Yuav ua li cas tiv thaiv PCB board warping thaum lub sijhawm tsim khoom
SMT (Printed Circuit Board Assembly, PCBA) tseem hu ua nto mount tshuab.Thaum lub sij hawm tsim cov txheej txheem, cov tshuaj nplaum yog rhuab thiab melted nyob rau hauv ib qho chaw cua sov, kom cov PCB pads muaj kev ntseeg siab ua ke nrog nto mount Cheebtsam los ntawm solder paste alloy.Peb hu cov txheej txheem no reflow soldering.Feem ntau ntawm cov rooj tsav xwm hauv Circuit Court feem ntau ua rau board dabtsi yog khoov thiab warping thaum unde ...
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