Kugirango byorohereze umusaruro nogukora, PCBpcb yumuzunguruko wumuzingi jigsaw muri rusange igomba gushushanya Mark point, V-groove, hamwe no gutunganya inkombe.
Igishushanyo mbonera cya PCB
1. Ikadiri (clamping edge) yuburyo bwo gutondeka PCB igomba gufata gahunda yo gufunga-gufunga igenzura kugirango harebwe niba uburyo bwo gutera PCB budahinduka nyuma yo gukosorwa kuri fixture.
2. Ubugari bwuzuye bwuburyo bwo gutera PCB ni 60260Mm (umurongo wa SIEMENS) cyangwa 00300mm (umurongo wa FUJI); niba gufunga byikora bisabwa, ubugari bwuzuye bwuburyo bwa PCB ni 125mm × 180mm.
3. Igishushanyo mbonera cyuburyo bwa PCB bwicara hafi yikibanza gishoboka, kandi birasabwa cyane gukoresha 2 × 2, 3 × 3,… nuburyo bwo gucumbika; ariko ntabwo ari ngombwa kuvuga imbaho nziza kandi mbi;
pcbV-Gukata
1. Nyuma yo gufungura V-gukata, umubyimba usigaye X ugomba kuba (1/4 ～ 1/3) uburebure bwa plaque L, ariko uburebure bwa X bugomba kuba .4 0.4mm. Ibibujijwe birahari kubibaho bifite imitwaro iremereye, kandi imipaka yo hasi irahari kubibaho bifite imitwaro yoroshye.
2. Kwimura S igikomere kuruhande rwibumoso n iburyo bwa V-gukata bigomba kuba munsi ya 0 mm; kubera igipimo ntarengwa cyimbitse, uburyo bwa V-gukata uburyo ntibukwiriye kubibaho bifite umubyimba uri munsi ya 1.3mm.
Shyira akamenyetso
1. Mugihe washyizeho ingingo isanzwe yo gutoranya, mubisanzwe usibe ahantu hatabujijwe kutarwanya 1,5 mm kurenza impande zose zahisemo.
2. Yifashishijwe mu gufasha ibikoresho bya elegitoroniki ya mashini yo gushyira smt kugirango ibone neza neza imfuruka yo hejuru yubuyobozi bwa PCB hamwe nibice bya chip. Hano hari byibuze ingingo ebyiri zitandukanye zo gupima. Ingingo zo gupimisha kumwanya uhamye wa PCB zose ziri mubice bimwe. Umwanya ugereranije nu mfuruka yo hejuru ya PCB; ibipimo byo gupima kugirango bihagarare neza bya PCB ya elegitoroniki ya optique isanzwe iri kumurongo wo hejuru wibice byumuzunguruko wa PCB pcb.
3. Kubigize ibice bya QFP (kwaduka kwaduka kare) ifite intera ≤ 0.5 mm na BGA (umupira wa grid array array pack) hamwe n'umwanya uri hagati ya mm 0.8, kugirango ubashe kunonosora neza chip, hashyizweho gushira kuri bibiri mfuruka zo hejuru za IC gupima.
gutunganya tekinoroji kuruhande
1. Umupaka uri hagati yikibaho ninama yimbere yimbere, ipfundo hagati yubuyobozi bukuru ninama nkuru ntigomba kuba nini cyangwa ihindagurika, kandi inkombe yicyuma cya elegitoronike ninama yumuzunguruko wa PCBpcb igomba gusiga mm zirenga 0,5 zimbere mu nzu umwanya. Kugirango umenye imikorere isanzwe yo gukata lazeri CNC.
Imyobo ihagaze neza kurubaho
1. Irakoreshwa muburyo busobanutse bwibibaho byose byumuzunguruko wa PCB byubuyobozi bwumuzunguruko wa PCBpcb nibimenyetso bisanzwe kugirango uhagarare neza neza neza. Mubihe bisanzwe, QFP ifite intera iri munsi ya 0,65mm igomba gushirwa kumurongo wacyo wo hejuru; Ibimenyetso byerekana neza ibimenyetso byumukobwa wubuyobozi bwa PCB bigomba gukoreshwa kubiri kandi bigashyirwa kumurongo wo hejuru wibintu bifatika.
2. Imyanya ihagaze neza cyangwa umwobo uhagaze neza ugomba kubikwa kubikoresho binini bya elegitoronike, nka jack ya I / O, mikoro, amashanyarazi ya batiri yumuriro, guhinduranya ibintu, gutwi kwa terefone, moteri, nibindi.
Umushinga mwiza wa PCB agomba kuzirikana ibintu byumusaruro ninganda mugihe utegura igishushanyo mbonera cya puzzle kugirango habeho umusaruro no gutunganya neza, kuzamura umusaruro, no kugabanya ibiciro byibicuruzwa.
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