- da JDB PCB compnay.
Injinin din PCB sau da yawa suna haɗuwa da maganganun masu kare lafiya da yawa yayin yin zane PCB. Yawancin lokaci waɗannan abubuwan ɓoye-lokaci sun kasu kashi biyu, ɗayan shine izinin aminci na lantarki, ɗayan kuma ba zai iya hana tsaro na lantarki ba. Don haka, menene buƙatun karawa don tsara allon PCB?
1. Districly aminci
1. Karami tsakanin wayoyi: Mafi qarancin layin rubutu shine kuma layi-layi ne, kuma layin layi-da-kai dole ne ya zama ƙasa da 4mil. Daga ra'ayi mai samarwa, ba shakka, mafi girma mafi kyau idan zai yiwu. Na al'ada 10mil ya kasance mafi gama gari.
2. A cikin faɗin ajiyar kuzari: A cewar mai masana'anta na PCB, idan murfin PCB ɗin yana bushewa, ƙaramin bai zama ƙasa da 0.2mm ba. Idan ana amfani da hayan laser, ƙaramar bai zama ƙasa da 4mil ba. Tsabtaccen haƙurin haƙuri ya ɗan ɗan bambanta dangane da farantin, ana iya sarrafa shi cikin 0.05mm; Mafi qarancin nisa na ƙasa kada ya zama ƙasa da 0.2mm.
3. Distance tsakanin allon da kuma kushin: bisa ga ƙarfin aiki na masana'antar PCB, Distance bai zama ƙasa da 0.2mm.
4. Nisa tsakanin zanen jan karfe da gefen jirgi: zai fi dacewa ba kasa da 0.3mm. Idan wani yanki ne mai girma na jan ƙarfe, yawanci akwai wani nesa nesa daga gefen allo, gaba ɗaya saita 20mil.
2. Distance Distance
1. Thingth, tsayi da rarrabuwa na haruffa: haruffa akan allon siliki gaba ɗaya suna amfani da ƙimar al'ada kamar 5/30, da sauransu.
2. Nesa daga allon siliki zuwa kan kushin: Ba a ba da izinin allon siliki ya kasance akan kushin ba. Domin idan an rufe allon siliki tare da kushin, allon siliki ba zai zama tinned lokacin da aka tinked, wanda zai shafi bangon da wuri. Gabaɗaya ya buƙaci a ajiye guda 8mil spacing. Idan yankin wasu allon PCB yana kusa sosai, 4mIl spacing shima yarda. Idan allon siliki na gangan ya rufe da kushin yayin ƙira, ɓangaren allon siliki ya rage a kan kushin ta atomatik don tabbatar da cewa kunshin ya tinned.
3. 3. Saboda haka, a yayin da ke zira, ya zama dole don tabbatar da daidaito na sararin samaniya tsakanin abubuwan da aka gama, kuma tsakanin kwasfa na kowane abu.
Abubuwan da ke sama sune wasu na buƙatun da ke buƙatar haɗuwa yayin tsara allon PCB. Shin kun san komai?
