Atụmatụ nhazi nhazi PCB

Iji kwado mmepụta, PCB stitching n'ozuzu mkpa chepụta Mark point, V-oghere, usoro onu.

I. Ụdị nke efere mkpoputa

1. The mpụta etiti nke PCB splicing osisi (clamping onu) kwesịrị mechiri emechi-loop imewe iji hụ na PCB splicing osisi agaghị nrụrụ mgbe ọ na-edozi na fixture.

2. PCB splice obosara ≤ 260mm (SIEMENS akara) ma ọ bụ ≤ 300mm (FUJI ahịrị);ọ bụrụ na achọrọ nnyefe akpaaka, PCB splice obosara x ogologo ≤ 125 mm x 180 mm.

3. PCB splicing osisi udi ka nso square dị ka o kwere, na-atụ aro 2 × 2, 3 × 3, …… splicing osisi;ma asụpụla n'ime bọọdụ yin na yang.

II.V-oghere

1. mgbe imeghe V-oghere, fọdụrụ ọkpụrụkpụ X kwesịrị ịbụ (1/4 ~ 1/3) osisi ọkpụrụkpụ L, ma kacha nta ọkpụrụkpụ X ga-≥ 0.4mm.Enwere ike iwere oke elu nke osisi na-ebu ibu dị arọ, nke dị ala nke obere ihe na-ebu ibu.

2. V-oghere n'akụkụ abụọ nke elu na ala notches nke na-ezighị ezi S kwesịrị ịbụ ihe na-erughị 0.1mm;n'ihi kacha nta dị irè ọkpụrụkpụ nke mmachi, ọkpụrụkpụ nke ihe na-erughị 1.2mm osisi, ekwesịghị iji V-slot spell board ụzọ.

III.Kaa akara

1. Tọọ ebe nrụtụ aka, na-emekarị n'ọnọdu n'akụkụ ebe ezumike 1.5 mm buru ibu karịa ebe a na-ere ahịa na-adịghị eguzogide ya.

2. A na-eji iji nyere aka n'ọnọdu ngwa anya nke igwe ntinye nwere mgbawa ngwaọrụ PCB osisi diagonal dịkarịa ala abụọ asymmetric ntụaka, dum PCB ngwa anya n'ọnọdu na ebe ntụaka bụ n'ozuzu na dum PCB diagonal kwekọrọ ekwekọ ọnọdụ;Iberibe oghere anya PCB nwere ebe ntụnye aka na-adịkarị na ibe PCB diagonal kwekọrọ.

3. maka oghere ụzọ ≤ 0.5mm QFP (ngwungwu square flat) na spacing bọọlụ ≤ 0.8mm BGA (ball grid array package) ngwaọrụ, iji meziwanye ntinye ntinye, ihe achọrọ nke IC abụọ diagonal set of point point.

IV.Akụkụ usoro

1. The mpụta etiti nke patching osisi na esịtidem obere osisi, obere osisi na obere osisi n'etiti njikọ dị nso na ngwaọrụ enweghị ike ịbụ nnukwu ma ọ bụ protruding ngwaọrụ, na components na nsọtụ nke PCB osisi kwesịrị ịhapụ ihe karịrị. 0.5mm nke ohere iji hụ na arụ ọrụ nkịtị nke ngwá ọrụ ịkpụ.

V. oghere ntinye osisi

1. maka PCB n'ọnọdu nke dum osisi na maka n'ọnọdu nke ezi-pitch ngwaọrụ benchmark akara, ụkpụrụ, a pitch nke na-erughị 0.65mm QFP kwesịrị ịtọ n'ọnọdụ ya diagonal;Ekwesịrị iji akara nrịbama nke PCB na-etinye n'ime ụzọ abụọ, haziri na diagonal nke ihe ndobere.

2. A ga-ahapụ nnukwu ihe ndị dị na kọlụm nhazi ma ọ bụ oghere oghere, na-elekwasị anya dị ka I / O interfaces, microphones, batrị batrị, microswitches, isi okwu isi, moto, wdg.

Ezigbo onye mmebe PCB, na nhazi nhazi, iji tụlee ihe ndị na-emepụta ihe, iji kwado nhazi, melite mmepụta mmepụta ma belata ụgwọ ọrụ.