Malingaliro a PCB Layout Design

Kuti athe kupanga, kusoka kwa PCB nthawi zambiri kumafunika kupanga Mark point, V-slot, process m'mphepete.

I. Mawonekedwe a mbale yolembera

1. Chojambula chakunja cha bolodi la PCB (clamping m'mphepete) chiyenera kutsekedwa-loop kamangidwe kuti zitsimikizire kuti PCB splicing board sidzapunduka itatha kukhazikitsidwa pa fixture.

2. PCB splice m'lifupi ≤ 260mm (SIEMENS mzere) kapena ≤ 300mm (FUJI mzere);ngati kugawira basi kumafunika, PCB splice m'lifupi x kutalika ≤ 125 mm x 180 mm.

3. PCB splicing bolodi mawonekedwe pafupi lalikulu ngati nkotheka, analimbikitsa 2 × 2, 3 × 3, …… splicing bolodi;koma osalemba mu yin ndi yang board.

II.V-kagawo

1. pambuyo kutsegula V-kagawo, otsala makulidwe X ayenera (1/4 ~ 1/3) bolodi makulidwe L, koma osachepera makulidwe X ayenera ≥ 0.4mm.Malire apamwamba a bolodi lolemera kwambiri amatha kutengedwa, malire apansi a bolodi yopepuka yonyamula katundu.

2. V-slot kumbali zonse za kumtunda ndi kumunsi kwa malo olakwika a S ayenera kukhala osachepera 0.1mm;chifukwa cha makulidwe osachepera ogwira ntchito zoletsa, makulidwe osakwana 1.2mm bolodi, sayenera kugwiritsa ntchito V-slot spell board board.

III.Lembani mfundo

1. Khazikitsani malo owonetsera, nthawi zambiri pa malo ozungulira kuchoka 1.5 mm kukula kuposa malo ake osasunthika.

2. Ntchito kuthandiza kuwala pa malo makina makhazikitsidwe ali Chip chipangizo PCB bolodi diagonal osachepera awiri asymmetric mfundo, lonse PCB kuwala udindo ndi mfundo Buku zambiri mu lonse PCB diagonal lolingana udindo;Chidutswa cha PCB kuwala koyang'ana ndi malo ofotokozera nthawi zambiri chimakhala pagawo la PCB diagonal lolingana.

3. kwa kutsogolera katayanitsidwe ≤ 0.5mm QFP (square lathyathyathya phukusi) ndi mpira katayanitsidwe ≤ 0.8mm BGA (mpira gululi gulu phukusi) zipangizo, pofuna kupititsa patsogolo makhazikitsidwe olondola, zofunika za IC awiri diagonal seti ya mfundo.

IV.Njira m'mphepete

1. Chimango chakunja cha bolodi la patching ndi bolodi lamkati laling'ono, bolodi laling'ono ndi bolodi laling'ono pakati pa malo olumikizira pafupi ndi chipangizocho sangakhale zida zazikulu kapena zotuluka, ndipo zigawo ndi m'mphepete mwa bolodi la PCB ziyenera kusiyidwa ndi zoposa. 0.5mm danga kuonetsetsa ntchito yachibadwa ya chida kudula.

V. bolodi malo mabowo

1. Kuyika kwa PCB pa bolodi lonse ndikuyika zida zoyezera bwino zizindikiro, makamaka, phula lochepera 0.65mm QFP liyenera kukhazikitsidwa pamalo ake ozungulira;Zizindikiro za benchmark za PCB zazing'ono ziyenera kugwiritsidwa ntchito pawiri, zokonzedwa pa diagonal ya zoyikapo.

2. Zigawo zazikuluzikulu ziyenera kusiyidwa ndi zipilala zoikika kapena mabowo oyika, kuyang'ana kwambiri monga I / O interfaces, maikolofoni, mabatire, ma microswitches, ma headphone interfaces, motors, etc.

Wopanga wabwino wa PCB, pamapangidwe a collocation, kuti aganizire zomwe amapanga, kuti athandizire kukonza, kukonza magwiridwe antchito komanso kuchepetsa ndalama zopangira.