Gabaɗaya, ana kiran samar da PCB Panelization don haɓaka ingancin layin samar da SMT. Abin da cikakkun bayanai ya kamata a kula dasu a ciki PCB taron? Bari mu duba shi.

1. Tsarin katako na PCB (gefen dunƙulewa) yakamata yayi amfani da ƙirar rufaffiyar hanya don tabbatar da cewa hukumar PCB ba zata lalace ba bayan an gyara ta akan abin da aka gyara;

2, siffar allon PCB kamar yadda zai yiwu zuwa murabba’i, shawarar 2 × 2, 3 × 3 …… Jigsaw, amma ba cikin Yin da Yang ba;

3, fadin allon PCB ≤260mm (layin SIEMENS) ko ≤300mm (layin FUJI); Idan ana buƙatar rarraba atomatik, faɗin × tsawon allon PCB ≤125mm × 180mm;

4, kowane ƙaramin jirgi a cikin allon PCB yakamata ya sami ramuka aƙalla matsayi uku, 3≤ buɗewa ≤6 mm, ramin saka gefen a cikin 1mm ba a yarda ya waya ko faci ba;

5, tazara ta tsakiya tsakanin ƙaramin faranti tsakanin 75mm ~ 145mm;

6, lokacin saita ma’anar saitin tunani, galibi a wurin saiti a kusa da wurin waldi mai buɗewa 1.5mm ya fi girma;

7. Kada a sami babban na’ura ko tsawaitawa kusa da wurin haɗin tsakanin firam ɗin waje da ƙaramin farantin ciki, kuma gefen abubuwan da aka haɗa da allon PCB yakamata ya sami sarari fiye da 0.5mm don tabbatar da aikin al’ada na kayan yankan;

8. Ana buɗe ramuka huɗu na huɗu a kusurwoyi huɗu na firam ɗin jirgi, tare da buɗewar 4mm ± 0.01mm; Ƙarfin ramin ya zama matsakaici don tabbatar da cewa ba zai karye ba yayin aiwatar da faranti na sama da ƙasa; Budewa da daidaiton matsayi don zama babba, bangon rami mai santsi ba tare da burr;

9. A ƙa’ida, QFP tare da tazarar ƙasa da 0.65mm za a saita shi a cikin diagonal matsayi na alamar tunani don PCB gaba ɗaya saka jeri na katako da kuma sanya madaidaicin kayan aiki; Dole ne a yi amfani da alamomin datum na jeri don ƙananan allon PCB a cikin nau’i-nau’i kuma a shirya su akan diagonal na abubuwan sanyawa;

10, manyan abubuwan haɗin gwiwa yakamata su sami ginshiƙai na matsayi ko ramuka na sakawa, kamar ƙirar I/O, makirufo, keɓaɓɓiyar baturi, canza micro, kebul ɗin kunne, mota, da sauransu.