PCB Umuzunguruko Igishushanyo nibigize Ibigize

Inzira y'ibanze yaUbuyobozi bw'umuzungurukoIgishushanyo mbonera cya SMT gitunganya bisaba kwitabwaho bidasanzwe. Imwe mu ntego nyamukuru yo gushushanya umuzunguruko ni ugutanga imbonerahamwe y'urusobe rw'umuyoboro wa PCB hamwe no gutegura urufatiro rw'igishushanyo cya PCB. Igikorwa cyo gushushanya c'ikigo cy'imisozi mikuru ya PCB ahanini kimeze nkigishushanyo mbonera cyinama isanzwe ya PCB. Itandukaniro nuko kwinjiza urwego rwagati rwagati hamwe no kugabana urwego rwamashanyarazi rwimbere rugomba gukorwa. Yafatiwe hamwe, igishushanyo mbonera cya PCB Croint Crock Croice ahanini ni kimwe. Igabanijwemo intambwe zikurikira:

1. Kugena Ubuyobozi bw'Umuzunguruko birimo cyane cyane igenamigambi ry'umubiri ry'Inama y'Ubutegetsi ya PCB, uburyo bwo gupakira ibice, uburyo bwo kwishyiriraho ibice, nimiterere yinama, hamwe na kibaho inshuro ebyiri, hamwe na board nyinshi imbaho.

2. Gukora ibipimo byakazi, bivuga cyane cyane ibikorwa byakazi bishyiraho hamwe nakazi kakora. Gukosora kandi byumvikana ibidukikije bya PCB birashobora kuzana uburyo bwiza kumiterere yumuzunguruko no kunoza imikorere yakazi.

3. Imiterere yimiterere no guhinduka. Nyuma yumurimo ubanza urangiye, imbonerahamwe y'urusobe irashobora gutumizwa muri PCB, cyangwa imbonerahamwe y'urusobe irashobora gutumizwa mu buryo butaziguye mu gishushanyo cya Schematic mu kuvugurura PCB. Imiterere yimiterere no guhinduka ni imirimo yingenzi mubishushanyo bya PCB, bigira ingaruka muburyo butaziguye nkibikorwa byakurikiyeho nkibikoresho byamashanyarazi.

4. Wiring Amategeko agenamiterere ahanini ashyiraho ibisobanuro bitandukanye kumukino wumuzunguruko, nkugari wiyi yire, umurongo uhwanye, intera yumutekano hagati yinsinga na padi, hamwe na gene. Ntakibazo icyo ari cyo buryo bwo kwirangizwa cyakiriwe, amategeko akomeye arakenewe. Intambwe y'ingenzi, amategeko meza yinshi arashobora kwemeza umutekano winama yumuzunguruko ugenda, wubahiriza ibisabwa umusaruro, kandi ubike ibiciro.

5. Ibindi bikorwa byabafasha, nk'ikirere cy'umuringa no kuzuza amacakubiri, ndetse no gutunganya inyandiko nka raporo yo gusohoka no kubika icapiro. Izi dosiye zirashobora gukoreshwa kugirango ugenzure kandi uhindure imbaho ​​yumuzunguruko, kandi irashobora kandi gukoreshwa nkurutonde rwibice byaguzwe.

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AMATEGEKO Y'IGIHUGU

1. Nta ntwaro iremewe mu gace ≤1mm kuva ku nkombe z'inama ya PCB no muri 1mm uzengurutse umwobo;

2. Umurongo w'amashanyarazi ugomba kuba yagutse bishoboka kandi ntagomba kuba munsi ya 18mil; Ubugari bwumurongo ntagomba kuba munsi ya 12mil; Ibitekerezo bya CPU hamwe no gusohoka hanze ntibigomba kuba munsi ya 10mil (cyangwa 8mil); umurongo wa stacume ntugomba kuba munsi ya 10mil;

3. Ibisanzwe ukoresheje umwobo ntabwo munsi ya 30mil;

4. 1 / 4W mukurwanya: 51 * 55mil (0805 hejuru yubuso); Iyo ucometse, padi 62mil, aperture 42mil; ubushobozi bwamagato: 51 * 55mil (0805 hejuru hejuru); Iyo yinjijwe mu buryo butaziguye, padi ni 50mil na umwobo wamwobo ni 28mil;

5. Witondere ko imirongo yimbaraga nubutaka bwubutaka bugomba kuba radial ishoboka, kandi imirongo yikimenyetso ntigomba kunyurwa mumazi.