Sei bhodhi redunhu rakadhindwa unoda impedance control?
Mumutsetse wechiratidzo chemagetsi echigadzirwa chemagetsi, kupokana kunosangana kana iyo yakakwira-frequency chiratidzo kana electromagnetic wave inopararira inonzi impedance.Nei mabhodhi ePCB achifanira kuve akavharirwa panguva yekugadzira fekitori yedunhu bhodhi?Ngationgororei kubva pane zvikonzero zvina zvinotevera:
1. The PCB redunhu bhodhi yefekitari yedunhu bhodhi fekitori inofanirwa kufunga nezve plugging nekuisa zvinhu zvemagetsi, uye iyo yakazotevera SMT chigamba chinongedzo chinodawo kufunga nezve nyaya dzakadai se conductivity uye chiratidzo chekufambisa kwekuita, saka kudzika kweiyo impedance, zviri nani.
2. Iyo PCB yedunhu bhodhi inonyura mhangura, electroplating tin (kana kemikari plating, thermal spray tin), connector soldering uye mamwe maitiro panguva yekugadzira.Izvo zvinhu zvinoshandiswa zvinofanirwa kuda yakaderera resistivity kuti ive nechokwadi chese impedance kukosha kwedunhu redunhu Kushanda kwakajairwa kunogona kuwanikwa chete kana zvinodiwa zvemhando yechigadzirwa zvasangana.
3. The tin plating pamusoro pcb redunhu mapuranga ndiyo inonyanya kutarisana nezvinetso mukugadzirwa kwebhodhi rose redunhu, uye ndicho chinhu chinonyanya kukosha chinokanganisa impedance;yakakura kuremara kwayo nyore oxidation kana deliquescence, murombo solderability, zvichiita redunhu bhodhi zvakaoma solder uye yakawandisa impedance.Yakakwirira, zvichikonzera kusaita zvakanaka kana kusagadzikana kwekuita kwebhodhi rose.
4. Makondakita ari muPCB redunhu bhodhi yefekitori yedunhu bhodhi achatumira masaini akasiyana.Iyo yedunhu pachayo ichachinja iyo impedance kukosha nekuda kweiyo etching, stack ukobvu, waya hupamhi uye zvimwe zvinhu, izvo zvinozoita kuti chiratidzo chikanganiswe uye kutungamira kune redunhu bhodhi.Performance inodonha, saka iwe unofanirwa kudzora iyo impedance kukosha mukati meimwe renji
REALTER: Aluminium Base Circuit Board , LED Mwenje PCB board , MCPCB
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