Cov ntaub ntawv dab tsi feem ntau siv rau PCB board prototypes?

Thaum nws los txog rau PCB board prototyping, xaiv cov khoom tsim nyog yog qhov tseem ceeb. Cov ntaub ntawv siv hauv PCB prototypes tuaj yeem muaj kev cuam tshuam loj rau kev ua haujlwm, kev ntseeg siab, thiab ua haujlwm ntev ntawm cov khoom kawg.Hauv tsab ntawv tshaj tawm no, peb yuav tshawb txog qee qhov feem ntau siv PCB board prototyping cov ntaub ntawv thiab sib tham txog lawv qhov zoo thiab qhov tsis zoo.

1. FR4:

FR4 yog nyob deb ntawm cov khoom siv dav tshaj plaws rau PCB board prototyping. Nws yog iav-reinforced epoxy laminate paub txog nws cov khoom hluav taws xob zoo heev. FR4 kuj muaj cov cua kub tsis kam, ua rau nws haum rau cov ntawv thov uas yuav tsum tau ua haujlwm kub.

Ib qho txiaj ntsig tseem ceeb ntawm FR4 yog nws cov txiaj ntsig zoo. Nws yog pheej yig dua piv rau lwm yam khoom siv hauv khw. Tsis tas li ntawd, FR4 muaj kev ruaj ntseg zoo thiab tuaj yeem tiv taus kev ntxhov siab ntau yam tsis muaj deforming lossis tawg.

Txawm li cas los xij, FR4 muaj qee qhov kev txwv. Nws tsis haum rau cov ntawv thov uas xav tau kev ua haujlwm siab zaus vim nws qhov siab dielectric tsis tu ncua. Tsis tas li ntawd, FR4 tsis haum rau cov ntawv thov uas yuav tsum tau poob qis tangent lossis nruj impedance tswj.

2. Rogers:

Rogers Corporation yog lwm qhov kev xaiv nrov rau PCB board prototyping. Rogers cov ntaub ntawv paub txog lawv cov khoom ua tau zoo, ua rau lawv haum rau ntau yam kev siv, suav nrog aerospace, kev sib txuas lus thiab kev lag luam tsheb.

Rogers cov ntaub ntawv muaj cov khoom siv hluav taws xob zoo heev, suav nrog qhov tsis muaj dielectric poob, tsis tshua muaj teeb liab distortion thiab siab thermal conductivity. Lawv kuj muaj qhov zoo ntawm qhov ruaj khov thiab tuaj yeem tiv taus ib puag ncig hnyav.

Txawm li cas los xij, qhov tsis zoo ntawm Rogers cov ntaub ntawv yog lawv cov nqi siab. Rogers cov ntaub ntawv yog kim dua li FR4, uas tuaj yeem ua rau muaj kev txwv rau qee qhov haujlwm.

3. Hlau tub ntxhais:

Hlau Core PCB (MCPCB) yog ib hom tshwj xeeb ntawm PCB board qauv uas siv cov tub ntxhais hlau es tsis txhob epoxy lossis FR4 ua cov substrate. Cov tub ntxhais hlau muab cov cua kub zoo heev, ua rau MCPCB haum rau cov ntawv thov uas xav tau lub zog hluav taws xob siab lossis cov khoom siv hluav taws xob hluav taws xob.

MCPCB feem ntau siv hauv kev lag luam teeb pom kev zoo, kev lag luam tsheb thiab kev lag luam hluav taws xob hluav taws xob. Lawv muab kev tswj xyuas thermal zoo dua piv rau cov PCBs ib txwm muaj, yog li ua kom tag nrho cov kev ntseeg siab thiab lub neej ntev ntawm cov khoom.

Txawm li cas los xij, MCPCB muaj qee qhov tsis zoo. Lawv kim dua li cov PCBs, thiab cov tub ntxhais hlau yog qhov nyuaj rau lub tshuab thaum lub sijhawm tsim khoom. Tsis tas li ntawd, MCPCB muaj qhov hloov pauv yooj yim thiab tsis haum rau cov ntawv thov uas yuav tsum tau khoov lossis sib tw.

Ntxiv rau cov ntaub ntawv hais los saum toj no, muaj lwm cov ntaub ntawv tshwj xeeb muaj rau cov ntawv thov tshwj xeeb. Piv txwv li, PCB hloov tau siv polyimide lossis polyester zaj duab xis ua cov khoom siv hauv paus, uas tso cai rau PCB khoov lossis flex. Ceramic PCB siv cov khoom siv ceramic ua cov substrate, uas muaj cov thermal conductivity zoo thiab kev ua haujlwm siab.

Hauv cov ntsiab lus, xaiv cov khoom tsim nyog rau koj lub PCB board qauv yog qhov tseem ceeb rau kev ua tiav qhov kev ua tau zoo, kev ntseeg tau, thiab kav ntev. FR4, Rogers, thiab cov khoom siv hlau yog qee qhov kev xaiv ntau tshaj plaws, txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Xav txog cov kev cai tshwj xeeb ntawm koj qhov project thiab sab laj nrog tus kws tshaj lij PCB chaw tsim khoom los txiav txim siab cov ntaub ntawv zoo tshaj plaws rau koj tus qauv PCB.