Yuav kom ua tiav qhov kev xav tau ntawm cov tooj liab plating, cov tuam txhab tsim hluav taws xob yuav tsum tau them sai sai rau cov teeb meem hauv qab no:
1. Raws li txoj haujlwm sib txawv ntawm PCB, rau PCBs nrog ntau qhov chaw xws li SGND, AGND, GND, thiab lwm yam, cais tooj liab raws li lub ntsiab" av" ntawm board nto. Sib cais cov av hauv av thiab analog av los ntawm kev txhaj tshuaj tooj liab, thiab ua kom tuab ntawm cov khoom siv hluav taws xob sib txuas ua ntej kev txhaj tshuaj tooj liab: 5.0V, 3.3V, thiab lwm yam.
2. Ib qho taw tes ib leeg txuas nrog rau lwm qhov hauv av, txoj kev yog los ntawm 0 ohm resistor, sib nqus hlaws lossis inductance txuas.
3. Cov siv lead ua oscillator nyob rau hauv lub copper foil Circuit Court nyob ze ntawm lub siv lead ua oscillator yog ib tug high-frequency hluav taws xob qhov chaw. Crystal oscillator yog ib puag ncig los ntawm cov ntawv ci tooj liab kom cais cov crystal oscillator plhaub.
4. Island (deadzone) teeb meem, yog tias koj xav tias nws loj dhau, txhais thiab ntxiv ib qho av ntawm.
5. Cov xaim hauv av yuav tsum tau kho tib yam nkaus thaum pib xaim, thiab cov xaim hauv av yuav tsum tau xaim zoo thaum xaim.
6. Nws yog qhov zoo tshaj kom tsis txhob muaj cov npoo ntse ntawm lub substrate. Vim hais tias los ntawm qhov pom ntawm electromagnetic, qhov no yog ib lub kav hlau txais xov xa tawm! Tej zaum yuav muaj kev cuam tshuam rau lwm qhov, tab sis nws yog qhov zoo tshaj plaws los siv cov ntug ntawm arc, txawm tias loj npaum li cas los yog me me.
7. Tsis txhob nchuav tooj liab rau hauv interlayer qhib ntawm lub rooj tsavxwm multilayer.
8. Cov hlau nyob hauv lub cuab yeej, xws li hlau radiators, hlau reinforcement strips, thiab lwm yam, yuav tsum yog" zoo grounded".
9. Lub tshav kub dissipation hlau thaiv ntawm peb lub davhlau ya nyob twg regulator yuav tsum tau zoo grounded. Lub hauv paus rwb thaiv tsev sawb ze ntawm cov siv lead ua oscillator yuav tsum tau zoo grounded. Hauv luv luv: thaum daws qhov teeb meem tooj liab hauv av ntawm PCB, yuav tsum muaj" qhov zoo tshaj qhov tsis zoo." Nws tuaj yeem txo qhov chaw xa rov qab ntawm cov kab teeb liab thiab txo qhov cuam tshuam ntawm electromagnetic cuam tshuam ntawm lub teeb liab mus rau lub ntiaj teb sab nraud.