A luam tawm Circuit Board (PCB) yog ib lub board nyias ua los ntawm fiberglass, composite epoxy, los yog lwm yam ntaub ntawv laminate.PCBs muaj nyob rau hauv ntau yam khoom siv hluav taws xob thiab hluav taws xob xws li beepers, xov tooj cua, radars, computer systems, thiab lwm yam. Ntau hom PCBs yog siv raws li cov ntawv thov.Dab tsi yog ntau hom PCBs?Nyeem ntxiv kom paub.

Dab tsi yog qhov txawv ntawm PCBs?

PCB's feem ntau tau muab cais raws li qhov zaus, ntau txheej txheej thiab substrate siv.Qee hom nrov tau tham hauv qab no.

• Ib Sab PCBs
  Ib sab PCBs yog hom yooj yim ntawm Circuit Court boards, uas tsuas muaj ib txheej ntawm substrate los yog hauv paus khoom.Cov txheej yog them nrog ib txheej nyias ntawm cov hlau, piv txwv li tooj liab - uas yog ib tug zoo conductor ntawm hluav taws xob.Cov PCBs no kuj muaj lub npog ntsej muag tiv thaiv, uas yog siv rau sab saum toj ntawm txheej tooj liab nrog rau lub tsho tiv no silk screen.Qee qhov zoo tau muab los ntawm ib sab PCB yog:
  • Ib sab PCBs yog siv rau ntim ntau lawm thiab yog tus nqi qis.
  • Cov PCBs no yog siv rau cov kab hluav taws xob yooj yim xws li lub zog sensors, relays, sensors thiab cov khoom ua si hluav taws xob.
• Ob Chav Sided PCBs
  Ob chav sided PCBs muaj ob sab ntawm lub substrate featuring hlau conductive txheej.Qhov nyob rau hauv lub rooj tsav xwm Circuit Court tso cai rau cov hlau txuas los ntawm ib sab mus rau lwm qhov.Cov PCBs no txuas cov circuits ntawm ob sab los ntawm ob qho tib si mounting schemes, uas yog los ntawm-qhov tshuab thiab nto mount technology.Kev siv thev naus laus zis los ntawm qhov yuav tsum tau ntxig cov khoom siv lead ua los ntawm qhov ua ntej drilled ntawm lub rooj tsav xwm hauv Circuit Court, uas yog soldered rau cov ntaub qhwv ntawm sab nraud.Lub tshuab nto mount muaj cov khoom siv hluav taws xob uas yuav tsum tau muab tso ncaj qha rau ntawm qhov chaw ntawm lub rooj tsavxwm.Qhov zoo ntawm ob sab PCBs yog:
  • Nto mounting tso cai rau ntau circuits txuas rau lub rooj tsavxwm nyob rau hauv kev sib piv rau lub mounting los ntawm lub qhov.
  • Cov PCBs no tau siv dav hauv ntau daim ntawv thov, suav nrog lub xov tooj ntawm tes, kev saib xyuas hluav taws xob, cov khoom siv ntsuas, amplifiers, thiab ntau lwm yam.
• Multi-txheej PCBs
  Multi-layer PCBs yog cov ntawv luam tawm Circuit Board, uas muaj ntau tshaj li ob txheej tooj liab xws li 4L, 6L, 8L, thiab lwm yam. Cov PCBs no nthuav dav cov cuab yeej siv hauv ob sab PCBs.Ntau txheej txheej ntawm lub rooj tsavxwm substrate thiab cov ntaub ntawv insulating cais cov txheej hauv ntau txheej PCBs.Cov PCBs yog qhov loj me, thiab muab cov txiaj ntsig ntawm qhov hnyav thiab qhov chaw.Qee qhov zoo tau muab los ntawm ntau txheej PCBs yog:
  • Multi-layer PCBs muab qib siab ntawm kev tsim qauv yooj yim.
  • Cov PCBs no ua lub luag haujlwm tseem ceeb hauv kev kub ceev circuits.Lawv muab ntau qhov chaw rau tus neeg xyuas pib qauv thiab lub zog.
• Rigid PCBs
  Rigid PCBs xa mus rau cov hom PCBs uas nws cov khoom siv yog tsim los ntawm cov khoom siv thiab uas tsis tuaj yeem khoov tau.Qee qhov txiaj ntsig zoo tau muab los ntawm lawv:
  • Cov PCBs no yog compact, uas ua kom muaj kev tsim ntau yam kev sib txuas hauv ib puag ncig nws.
  • Rigid PCBs muab kev kho yooj yim thiab txij nkawm, vim tias tag nrho cov khoom tau raug cim kom meej.Tsis tas li ntawd, cov teeb liab txoj kev tau teeb tsa zoo.
• Flexible PCBs
  Flexible PCBs yog tsim los ntawm cov khoom siv hloov tau yooj yim.Cov PCBs no tuaj nyob rau hauv ib sab, ob sab thiab multilayer hom.Qhov no yuav pab txo qhov nyuaj hauv kev sib dhos ntawm cov cuab yeej.Qee qhov zoo ntawm cov PCBs no yog:
  • Cov PCBs no pab txuag tau ntau qhov chaw, nrog rau txo qhov hnyav tag nrho.
  • Flexible PCBs pab txo qhov loj ntawm lub rooj tsavxwm, uas ua rau nws zoo tagnrho rau ntau yam kev siv uas xav tau cov teeb liab siab ceev.
  • Cov PCBs no yog tsim los rau kev ua haujlwm, qhov kub thiab qhov ntom ntom yog qhov kev txhawj xeeb loj.
• Rigid-Flex-PCBs
  Rigid Flex PCBs yog kev sib xyaw ua ke ntawm cov kab hluav taws xob nruj thiab hloov tau yooj yim.Lawv suav nrog ntau txheej ntawm cov hloov pauv hloov tau txuas nrog ntau tshaj ib lub rooj tsav xwm nruj.
  • Cov PCBs no yog precision ua.Li no, nws yog siv nyob rau hauv ntau yam kev kho mob thiab tub rog daim ntaub ntawv.
  • Ua lub teeb yuag, cov PCB no muab 60% ntawm qhov hnyav thiab qhov chaw txuag.
• High-Frequency PCBs
  High-frequency PCBs yog siv nyob rau hauv ntau zaus ntawm 500MHz - 2GHz.Cov PCBs no yog siv rau hauv ntau qhov kev siv tseem ceeb xws li kev sib txuas lus, microwave PCBs, microstrip PCBs, thiab lwm yam.
• Aluminium backed PCBs
  Cov PCBs no yog siv rau hauv kev siv hluav taws xob siab, raws li kev tsim kho aluminium pab ua kom sov dissipation.Aluminium backed PCBs paub tias muaj qib siab ntawm rigidity thiab qis qis ntawm thermal expansion, uas ua rau lawv zoo tagnrho rau cov ntawv thov uas muaj siab ua haujlwm siab.PCBs yog siv rau LEDs thiab cov khoom siv fais fab.

Qhov kev thov rau PCBs tau nce hauv ntau qhov kev lag luam.Hnub no, koj yuav pom ntau yam Reputed PCB manufacturers thiab distributors, uas cater rau kev sib tw connective khoom lag luam.Nws yog ib txwm pom zoo kom yuav PCBs rau kev lag luam thiab kev lag luam siv los ntawm cov tuam txhab muaj npe thiab cov neeg muag khoom.Twisted Traces yog ib qho kev ntseeg siab thiab paub txog cov tuam txhab ntawm ntau hom PCBs.Lub tuam txhab tau tsis tu ncua muab lawv cov neeg siv khoom nrog cov khoom siv hluav taws xob zoo nrog kev ceev ceev, thiab kev ua haujlwm zoo.