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6 Layer FR4 ENIG Impedance Iṣakoso PCB

6 Layer FR4 ENIG Impedance Iṣakoso PCB

Apejuwe kukuru:

Awọn ipele: 6

Ipari oju: ENIG

Ohun elo mimọ: FR4

Lode Layer W/S: 6/4mil

Inu Layer W/S: 4/4mil

Sisanra: 2.8mm

Min.iho opin: 0.35mm

Pataki ilana: Impedance Iṣakoso


Alaye ọja

Kini idi ti PCB Lati Ṣe Impedance?

PCB impedance ntokasi si awọn resistance ati awọn sile ti awọn reactance, eyi ti ìgbésẹ bi a idankan duro alternating lọwọlọwọ.Sisẹ impedance jẹ pataki ni PCB.Eyi ni idi:

1, PCB lati ṣe akiyesi fifi sori ẹrọ plug ti awọn paati itanna, SMT patch plug tun nilo lati ṣe akiyesi ifarakanra ati iṣẹ gbigbe ifihan agbara, nitorinaa yoo nilo ikọlu kekere, dara julọ.

2, PCB ninu awọn gbóògì ilana nipasẹ Ejò iwadi oro, electroplating Tinah (tabi elekitiriki plating, gbona sokiri Tinah), solder soldering ati awọn miiran ilana, awọn ohun elo ti a lo gbọdọ jẹ kekere resistivity, lati rii daju wipe awọn ìwò impedance iye ti awọn Circuit ọkọ lati pade awọn ibeere didara ọja, lati le ṣiṣẹ deede.

3, PCB tin plating jẹ julọ prone si awọn iṣoro ni gbogbo PCB gbóògì, ti wa ni awọn ọna asopọ bọtini nyo awọn impedance;Awọn oniwe-tobi abawọn jẹ rorun ifoyina tabi deliquesce, ko dara brazing, ki awọn PCB jẹ soro lati weld, ikọjujasi jẹ ga ju, Abajade ni ko dara conductive išẹ tabi gbogbo PCB išẹ jẹ ko idurosinsin.

4, adaorin ninu PCB yoo ni ọpọlọpọ awọn gbigbe ifihan agbara, laini funrararẹ nitori etching, sisanra lamination, iwọn waya ati awọn ifosiwewe miiran, yoo fa awọn iyipada iye impedance, ṣe ipalọlọ ifihan agbara, Abajade ni iṣẹ ṣiṣe ti Circuit kọ silẹ ọkọ, nitorinaa o jẹ dandan lati ṣakoso iye ikọlu laarin iwọn kan.

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