Layin Na'urar PCB ba abu bane sabani, yana da wasu ƙa'idodi waɗanda ke buƙatar binta ta kowa. Baya ga Union bukatun, wasu na'urori na musamman ma suna da buƙatun layuka daban-daban.
Bukatun layout don na'urorin laifi
1) Ya kamata a sami abubuwan haɗin kai sama da 3mm 3mm a kusa da mai lankwasa / namiji, mai lankwasa na'urorin, kuma babu wasu na'urori masu laifi kusa da 1.5mm; nesa daga gefen mai laifi na na'urorin ramin na PIN na na'urar da aka yiwa kayan aikin shine 2.5 Ba za a sami kayan haɗin a cikin kewayon MM ba.
2) Ya kamata a sami kayan haɗin a cikin 1mm a kusa da madaidaiciya / namiji, madaidaiciya / na'urar zargi; Lokacin da baya na madaidaiciya / namiji, madaidaiciya / na'urar mai laifi ta kai tsaye, za a ɗora abubuwa a cikin rami na 2.5mm daga rami mai laifofin.
3) Mai toshe sock na mai haɗawa da aka yi amfani da shi tare da haɗin salon Turai, gaban ƙarshen allura shine 6.5mm haramun salula shine 2.0mm haramun zane.
4) Dogon PIN na Power Weller Willer Free Pin Pin Pin Pin.
Bukatun layout don na'urori masu zafi
1) Yayin layallan na'ura, kiyaye na'urorin m pictroly (kamar masu ɗaukar ƙarfe, Crystal Oscilators, da sauransu) gwargwadon nesa da manyan na'urori-zafi.
2) Na'urar Thermal ta kasance kusa da kayan aikin ƙarƙashin gwaji da nesa daga babban yanki, don kada a shafe wasu ƙarfin dumama daidai da kuma haifar da rashin ƙarfi.
3) Sanya kayan zafi da kayan zafi-mai tsauri kusa da sararin samaniya ko a saman, amma idan ba za su iya sanya shi kusa da iska tare da wasu na'urori masu wahala ba gwargwadon yiwuwar yiwa matsayi a cikin shugabanci.
Abubuwan da ake buƙata tare da na'urorin polar
1) Na'urorin da ke tare da polarity ko shugabanci mai kyau suna da shugabanci iri ɗaya a cikin layout kuma ana shirya shi da kyau.
2) Jagorar da SMC ta SMC a kan allo ya kamata ya zama kamar yadda zai yiwu. Ana shirya na'urorin guda ɗaya iri ɗaya da kyau.
(Sassa tare da polarity sun haɗa da: masu ɗaukar hoto, masu ɗaukar hoto, Tantalum masu ɗaukar hoto, abubuwa masu yawa, da sauransu)
Bukatun layout don ta hanyar-rami Reflow
1) Ga PCBS tare da gefen da ba a rarraba ba fiye da 300mm, karancin kayan aiki bai kamata a sanya su a tsakiyar kayan aikin ba a lokacin sayar da kayayyaki a hukumar. Tasirin na'urar da aka sanya.
2) Domin sauƙaƙe shigarwar, ana bada shawarar shirya na'urar kusa da aikin gefen sa.
3) Tsawon shugabancin na'urori masu tsayi (kamar suttukan rigakafin ƙwaƙwalwar ajiya, da sauransu) ana bada shawarar yin daidai da shugabanci na watsa.
4) Distance tsakanin gefen-rami Refrai Rarraba Scar Padad da Pad da QFP, Sop, mai haɗawa da filin wasan da 20mm. Nisa daga wasu na'urorin SMT sune> 2mm.
5) Nisa tsakanin jikin ta hanyar-rami Refral Reflagl na'urar ya wuce 10mm.
6) Nisa tsakanin gefen Bad na ta hanyar Budewa Reflow Na'urar Siyarwa da kuma gefen juyawa shine ≥10mm; Distance daga gefen da ba a watsa ≥5mm.