Ka'idar wiring na PCB allon Layer biyu

PCB wani muhimmin bangaren lantarki ne da kuma asalin duk abubuwan da aka gyara na lantarki.Ya zama mai rikitarwa tun lokacin da ya bayyana a duniya ta ƙarshe.Daga Layer-Layer zuwa Layer biyu, Layer hudu, sa'an nan kuma zuwa Multi-Layer, wahalar zane kuma yana karuwa.girma.Akwai wayoyi a ɓangarorin biyu na rukunin biyu, wanda ke da matukar taimako a gare mu don fahimtar da kuma sarrafa ka'idodin wayar sa.Bari mu dubi ka'idar wiring na PCB biyu allon.

An tsara allon PCB na ƙasa mai ninki biyu a cikin hanyar shinge da ke kewaye da siffar akwatin, wato, gefen PCB ya fi dacewa da ƙasa, ɗayan kuma shine allon kwafin waya na ƙasa a tsaye, sa'an nan kuma an haɗa su da haɗin kai. tare da metallized vias (ta-rami juriya ne karami).

Idan akai la'akari da cewa ya kamata a sami waya ta ƙasa kusa da kowane guntu na IC, yawanci ana yin waya ta ƙasa kowane 1 ~ 115cm, wanda zai sa yankin madauki na sigina ya zama karami kuma yana taimakawa wajen rage radiation.Hanyar ƙirar hanyar sadarwa ya kamata ta kasance a gaban layin siginar, in ba haka ba yana da wuya a aiwatar.

Ka'idar layin sigina:

Bayan an ƙayyade ma'auni mai ma'ana na abubuwan da aka gyara, sannan kuma allon mai Layer biyu, sa'an nan kuma ƙirar waya mai kariya ta ƙasa, sannan kuma mahimman wayoyi (waya mai mahimmanci, waya mai girma da waya na kowa a baya).Wayoyi masu mahimmanci dole ne su sami iko daban-daban, dawowar ƙasa, wayoyi da gajere sosai, don haka wani lokaci ƙasa kusa da waya mai mahimmanci tana kusa da siginar siginar ta yadda za a iya samar da mafi ƙarancin madauki mai aiki.

Jirgin mai Layer hudu yana da saman saman biyu, kuma kasan allon waya shine layin sigina.Da farko dai, mabuɗin kyalle na kristal, da'irar crystal, da'irar agogo, layin sigina da sauran CPUs dole ne su bi ƙa'idar ƙaramin yanki mai gudana gwargwadon yiwuwa.

Lokacin da da'irar IC na bugu yana aiki, ana ambaton yankin wurare dabam dabam sau da yawa, wanda shine ainihin ma'anar raɗaɗin yanayin bambancin.Kamar ma'anar radiyon yanayi daban-daban: kewayawar da ke aiki a halin yanzu tana gudana a cikin siginar sigina, kuma madauki na siginar zai haifar da radiation na lantarki, wanda ke haifar da yanayin bambancin halin yanzu, don haka an ce madaidaicin yanayin siginar yana haifar da radiation. radiation, da kuma ƙarfin filin radiation Tsarin lissafin shine: E1 = K1, f2, ia/gamma

Nau'in: E1 - allon kwafi na yanayi daban-daban, ana iya ganin ƙarfin filin gamma radiation na sarari na da'irar PCB ta hanyar nau'in nau'in radiyo daban-daban, ƙarfin filin radiation ya yi daidai da mitar aiki f2, yankin wurare dabam dabam, da aiki na yanzu, I kamar lokacin da za a ƙayyade aikin Mitar f da girman girman yanki sune mahimman abubuwan da za mu iya sarrafa kai tsaye a cikin zane.A lokaci guda kuma, idan dai aikin kwararar ya hadu da aminci, saurin gudu, da halin yanzu, mafi girma mafi girma, mafi girma mafi girma, kunkuntar bugun tare da gefen siginar, mafi girma bangaren jituwa, mafi fadi, mafi girma na electromagnetic. radiation, dole ne a nuna shi (a sama) mafi girman ƙarfin halin yanzu, wanda ba mu so.

Idan za ta yiwu, kewaya haɗin kai mai mahimmanci tare da waya ta ƙasa.Lokacin zazzage allon kwafin PCB ɗaya bayan ɗaya, wadatattun wayoyi na ƙasa suna rufe duk giɓi, amma dole ne a kula da duk waɗannan wayoyi na ƙasa, filaye za su samar da gajeriyar gajeriyar ƙaƙƙarfan ƙaƙƙarfan haɗin gwiwa, wanda zai iya samun sakamako mai kyau (Lura: Akwai buƙatun sararin samaniya wanda dole ne a cika sharuɗɗan, kamar nisan rarrafe).