Domin sauƙaƙe samarwa da kera, PCBpcb allon kewayawa jigsaw gabaɗaya dole ne ya tsara alamar Mark, V-groove, da gefen sarrafawa.
Tsarin bayyanar PCB
1. Firam (ƙuƙwalwar gefen) na hanyar splicing na PCB yakamata ya ɗauki tsarin ƙira mai rufaffiyar madauki don tabbatar da cewa hanyar splicing na PCB ba ta da sauƙi bayan an gyara shi a kan kayan aiki.
2. Jimlar nisa na hanyar splicing PCB shine ≤260Mm (layin SIEMENS) ko ≤300mm (layin FUJI); idan ana buƙatar gluing ta atomatik, jimlar nisa na hanyar splicing PCB shine 125mm × 180mm.
3. Tsarin bayyanar hanyar hawan PCB yana kusa da murabba'i kamar yadda zai yiwu, kuma ana bada shawarar sosai don amfani da 2 × 2, 3 × 3, ... da hanyar shiga; amma ba lallai ba ne a fitar da alluna masu kyau da mara kyau;
pcbV-Yanke
1. Bayan bude V-yanke, sauran kauri X ya zama (1/4 ~ 1/3) farantin kauri L, amma mafi m kauri X dole ne ≥0.4mm. Akwai ƙuntatawa don alluna masu nauyi, kuma ana samun ƙananan iyaka don alluna masu nauyi.
2. Matsar da S na rauni a gefen hagu da dama na V-cut ya kamata ya zama ƙasa da 0 mm; saboda mafi ƙarancin ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan, hanyar splicing V-cut bai dace da allon tare da kauri ba ƙasa da 1.3mm.
Alamar alama
1. Lokacin saita madaidaicin wurin zaɓi, gabaɗaya ka bar wurin mara juriya mara shinge 1.5 mm girma fiye da gefen wurin zaɓin.
2. An yi amfani da shi don taimakawa na'urorin lantarki na na'urar sanyawa ta smt don gano daidai wuri saman kusurwar PCB tare da abubuwan haɗin guntu. Akwai aƙalla ma'aunin ma'auni biyu daban-daban. Ma'aunin ma'auni don daidaitaccen matsayi na duka PCB gabaɗaya suna cikin yanki ɗaya. Matsayin dangi na saman kusurwar PCB; Ma'aunin ma'auni don daidaitaccen matsayi na layukan na'urorin lantarki na PCB na kwamfuta gabaɗaya suna a saman kusurwar allon kewayawa na PCB pcb.
3. Don sassan QFP (kunshin fakitin murabba'in murabba'i) tare da tazarar waya ≤0.5 mm da BGA (kunshin grid na ball) tare da tazarar ball ≤0.8 mm, don haɓaka madaidaicin guntu, an ƙayyade don saita a cikin biyun. saman sasanninta na IC Measuring point.
bangaren fasaha na sarrafa
1. Iyakar da ke tsakanin firam da babban allo na ciki, kumburin da ke tsakanin babban allo da babban allo bai kamata ya zama babba ko babba ba, kuma gefen na'urar lantarki da allon kewayawa na PCBpcb ya kamata ya bar fiye da 0.5 mm na cikin gida. sarari. Don tabbatar da al'ada aiki na Laser yankan CNC ruwan wukake.
Madaidaicin ramukan sakawa akan allo
1. An yi amfani da shi don daidaitaccen matsayi na dukan PCB kewaye hukumar na PCBpcb da'irar hukumar da daidaitattun alamomi don daidai matsayi na lafiya-spaced aka gyara. A ƙarƙashin yanayi na al'ada, QFP tare da tazara na ƙasa da 0.65mm yakamata a saita shi a saman kusurwar sa; Madaidaicin daidaitattun ma'auni na hukumar 'yar PCB na hukumar yakamata a yi amfani da su bibiyu kuma a shimfiɗa su a saman kusurwoyi na daidaitattun abubuwan sanyawa.
2. Madaidaicin madaidaicin matsayi ko ramukan matsawa yakamata a ajiye su don manyan kayan lantarki, kamar jack I/O, microphones, jacks baturi mai caji, maɓalli mai juyawa, jacks na kunne, motoci, da sauransu.
Mai tsara PCB mai kyau yakamata yayi la'akari da abubuwan samarwa da masana'anta yayin haɓaka tsarin ƙirar wasan wasa don tabbatar da samarwa da sarrafawa dacewa, haɓaka yawan aiki, da rage farashin samfur.
Daga Yanar Gizo: