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6 Layer FR4 ENIG Impedance Control PCB

6 Layer FR4 ENIG Impedance Control PCB

ʻO ka wehewehe pōkole:

Papahana: 6
Hoʻopau ʻili: ENIG
Mea kumu: FR4
ʻO waho W/S: 4/4mil
Papa loko W/S: 4/4mil
Mānoanoa: 1mm
Min.anawaena puka:0.25mm
Kaʻina hana kūikawā: Impedance Control


Huahana Huahana

Nā mea e hoʻoholo ai i ka Impedance i hoʻomaluʻia

Hoʻoholo pinepine ʻia ka impedance hiʻohiʻona o kahi PCB e kona inductance a me ka capacitance, kūpaʻa a me ka conductance.ʻO kēia mau mea nā hana o ka nui kino o ke kaapuni, ka dielectric mau a me ka mānoanoa dielectric o ka mea PCB substrate.Ma ka laulā, ʻo ka laina impedance o kahi PCB mai 25 a 125Ω.ʻO ka ʻōnaehana PCB e hoʻoholo ai i ka waiwai impedance e pili ana i kēia mau mea:

ʻO ka laulā a me ka mānoanoa o nā laina hōʻailona keleawe ma luna a ma lalo

Ka laula o na uwea keleawe o luna a me lalo.ʻO ke kaʻina hana o loko o ka ʻaha a me ke kaapuni ʻo 0.5oz 3/3mil a 6oz 15/12mil laina hōʻailona keleawe, a ʻokoʻa ka mamao o waho mai 1/3oz 3/3mil a 6oz 15/12mil.

ʻO ka pā kumu a i ʻole ka mānoanoa pepa semi-cured ma nā ʻaoʻao ʻelua o ka uea keleawe

Hoʻohana ʻia ka pepa semi-cured ma ke ʻano he papa hoʻopaʻa e paʻa i nā papa kumu āpau i kahi PCB.I ka hoʻolālā ʻana i ka PCB mana impedance, e like ka mānoanoa o ka pepa semi-cured ma nā ʻaoʻao ʻelua o ka papa kumu.

Dielectric mau o ka PCB kumu a me ka pepa semi-cured

Inā ʻokoʻa ka hoʻomau dielectric o ka pā kumu a me ka pepa semi-cured, e loli pū ka impedance.No laila, pono e like ka mau dielectric o nā mea ʻelua.

Hōʻike Lako

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Laina Plating Aunoa

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Laina PTH

15-PCB kaapuni kaapuni LDI 'akomi laser scan laina mīkini

LDI

12-PCB kaapuni kaapuni CCD mīkini hoʻolaha

Mīkini Hōʻike CCD


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