Flexible circuit fabrication yog dav siv nyob rau hauv ntau yam lag luam vim nws ntau yam zoo xws li yooj, hnav, compactness thiab siab ntseeg. Txawm li cas los xij, zoo li lwm yam kev txhim kho thev naus laus zis, nws los nrog nws txoj kev ncaj ncees ntawm kev sib tw thiab qhov tsis zoo.Ib qho kev sib tw loj hauv kev tsim hluav taws xob hloov pauv yog hluav taws xob hluav taws xob hluav taws xob thiab hluav taws xob cuam tshuam (EMI), tshwj xeeb tshaj yog nyob rau hauv high-frequency thiab high-speed applications. Hauv tsab ntawv blog no, peb yuav tshawb txog qee txoj hauv kev zoo los daws cov teeb meem no thiab ua kom pom kev ua haujlwm zoo ntawm flex circuits.
Ua ntej peb delve rau hauv cov kev daws teeb meem, cia peb nkag siab txog qhov teeb meem tam sim no. Electromagnetic hluav taws xob tshwm sim thaum hluav taws xob thiab sib nqus teb txuam nrog cov ntws ntawm hluav taws xob tam sim no oscillate thiab propagate los ntawm qhov chaw. EMI, ntawm qhov tod tes, hais txog qhov tsis xav tau cuam tshuam los ntawm cov hluav taws xob electromagnetic. Nyob rau hauv high-frequency thiab high-speed daim ntaub ntawv, xws li hluav taws xob thiab kev cuam tshuam tuaj yeem cuam tshuam loj rau kev ua haujlwm ntawm flex circuit, ua rau muaj teeb meem kev ua haujlwm, teeb liab attenuation, thiab txawm tias lub cev tsis ua haujlwm.
Tam sim no, cia peb tshawb txog qee qhov kev daws teeb meem los daws cov teeb meem no hauv kev tsim hluav taws xob hloov pauv tau:
1. Shielding tshuab:
Ib txoj hauv kev zoo los tiv thaiv hluav taws xob hluav taws xob thiab EMI yog siv cov cuab yeej tiv thaiv hauv kev tsim thiab tsim cov khoom siv hluav taws xob hloov tau. Kev tiv thaiv yog siv cov khoom siv hluav taws xob, xws li tooj liab lossis txhuas, los tsim ib qho kev thaiv lub cev uas tiv thaiv electromagnetic teb los ntawm kev khiav los yog nkag mus rau hauv ib lub voj voog. Kev tsim cov ntaub thaiv npog zoo pab tswj cov emissions hauv circuits thiab tiv thaiv EMI tsis xav tau.
2. Grounding thiab decoupling:
Cov txheej txheem hauv av kom raug thiab decoupling yog qhov tseem ceeb los txo qhov cuam tshuam ntawm hluav taws xob electromagnetic. Lub dav hlau hauv av lossis lub zog hluav taws xob tuaj yeem ua raws li cov ntaub thaiv npog thiab muab txoj hauv kev tsis tshua muaj kev cuam tshuam rau cov dej ntws tam sim no, yog li txo qhov peev xwm rau EMI. Tsis tas li ntawd, decoupling capacitors tuaj yeem muab cov tswv yim tso rau ze ntawm cov khoom siv ceev ceev kom txo cov suab nrov nrov thiab txo nws qhov cuam tshuam rau hauv Circuit Court.
3. Layout thiab Cheebtsam muab tso rau:
Layout thiab qhov chaw tso khoom yuav tsum tau ua tib zoo txiav txim siab thaum lub sij hawm flex circuit manufacturing. Cov khoom siv ceev ceev yuav tsum tau muab cais tawm ntawm ib leeg thiab cov cim cim yuav tsum tau khaws cia kom deb ntawm lub peev xwm ntawm lub suab nrov. Kev txo qis qhov ntev thiab lub voj voog thaj tsam ntawm cov cim cim tuaj yeem txo qhov muaj peev xwm ntawm hluav taws xob hluav taws xob thiab EMI teeb meem.
4. Lub hom phiaj ntawm cov khoom lim:
Kev sib koom ua ke cov khoom siv lim dej xws li hom chokes, EMI cov ntxaij lim dej, thiab cov hlaws ferrite pab txo cov hluav taws xob hluav taws xob thiab lim tawm cov suab nrov tsis xav tau. Cov khoom siv no thaiv cov cim tsis xav tau thiab muab impedance rau lub suab nrov nrov, tiv thaiv nws los ntawm kev cuam tshuam rau Circuit Court.
5. Cov khoom sib txuas thiab cov kab hluav taws xob tau zoo hauv av:
Cov khoom sib txuas thiab cov cables siv hauv kev tsim hluav taws xob hloov pauv yog qhov muaj peev xwm ntawm hluav taws xob hluav taws xob hluav taws xob thiab EMI. Xyuas kom cov khoom no yog cov hauv av kom zoo thiab tiv thaiv tuaj yeem txo cov teeb meem no. Ua tib zoo tsim cov ntaub thaiv npog thiab cov khoom sib txuas zoo nrog cov av tsim nyog tuaj yeem txo cov hluav taws xob hluav taws xob thiab EMI teeb meem.
Hauv cov ntsiab lus
Kev daws cov teeb meem hluav taws xob hluav taws xob thiab EMI cuam tshuam cov teeb meem hauv kev tsim hluav taws xob hloov pauv, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov kev siv hluav taws xob thiab kev kub ceev, yuav tsum muaj kev sib koom ua ke thiab kev sib koom ua ke. Kev sib xyaw ua ke ntawm kev tiv thaiv kev tiv thaiv, kev cog lus hauv av kom zoo thiab kev sib txuas, ua tib zoo teeb tsa thiab muab tso rau hauv qhov chaw, kev siv cov khoom siv lim dej, thiab ua kom muaj kev sib txuas hauv av thiab cov cables yog cov kauj ruam tseem ceeb hauv kev txo cov teeb meem no. Los ntawm kev siv cov kev daws teeb meem no, engineers thiab designers tuaj yeem ua kom pom kev ua tau zoo, kev ntseeg tau thiab kev ua haujlwm ntawm kev hloov pauv hloov pauv hauv cov ntawv thov.
Post lub sij hawm: Oct-04-2023
Rov qab
