Prototype e biri ebi sekit mbadamba RED solder nkpuchi castellated oghere
Nkọwapụta ngwaahịa:
| Ihe ndabere: | FR4 TG140 |
| Ọkpụrụkpụ PCB: | 1.0+/-10% mm |
| Ọnụọgụ oyi akwa: | 4L |
| Ọkpụrụkpụ ọla kọpa: | 1/1/1/1 oz |
| Ọgwụgwọ elu: | ENIG 2U" |
| Ihe mkpuchi ihe na-ere ahịa: | Uhie na-egbuke egbuke |
| Ihuenyo silk: | Ọcha |
| Usoro pụrụ iche: | Pth ọkara oghere na nsọtụ |
Ngwa
Usoro nke plated ọkara oghere bụ:
1. Hazie oghere nke ọkara nke nwere ihe eji egbutu ụdị V abụọ.
2. Mgbochi nke abụọ na-agbakwụnye oghere nduzi n'akụkụ oghere ahụ, na-ewepụ akpụkpọ ahụ ọla kọpa tupu oge eruo, na-ebelata burrs, ma na-eji ndị na-egbu ihe na-eme ka ọ bụrụ ihe na-eme ka ọ dị elu na-agba ọsọ ọsọ.
3. Na-emikpu ọla kọpa ka ọ bụrụ electroplate nke mkpụrụ, nke mere na a na-etinye akwa ọla kọpa na mgbidi oghere nke oghere gburugburu na nsọtụ osisi ahụ.
4. Production nke mpụta oyi akwa circuit mgbe lamination, ikpughe, na mmepe nke mkpụrụ n'usoro, na mkpụrụ na-doro nke abụọ ọla kọpa plating na tin plating, nke mere na ọla kọpa oyi akwa na oghere mgbidi nke gburugburu oghere na nsọtụ nke. a na-eme ka osisi ahụ sie ike na akwa ọla kọpa kpuchie ya site na oyi akwa tin maka nguzogide corrosion;
5. Ọkara oghere na-akpụ egbutu oghere gburugburu na nsọtụ osisi ahụ na ọkara iji mepụta ọkara oghere;
6. Na nzọụkwụ nke iwepụ ihe nkiri ahụ, a na-ewepụ ihe nkiri mgbochi electrolating nke a na-agbanye n'oge usoro ntinye ihe nkiri;
7. Etching nke mkpụrụ osisi na-etched, na ọla kọpa ekpughere na mpụta oyi akwa na-ewepụ site etching;
8. A na-ewepụ tin tin na-apụ apụ na tin, nke mere na tin dị na mgbidi ọkara oghere nwere ike wepụ ya, akwa ọla kọpa na mgbidi ọkara oghere na-apụta.
9. Mgbe emechara, jiri teepu na-acha uhie uhie na-ejikọta mbadamba unit ahụ, ma wepụ burrs site na eriri alkaline etching.
10. Mgbe nke abụọ nke ọla kọpa plain na tin platter na mkpụrụ, a na-egbutu oghere gburugburu dị na nsọtụ osisi ahụ na ọkara ka ọ bụrụ oghere ọkara, n'ihi na akwa ọla kọpa nke mgbidi oghere ahụ na-eji akwa tin kpuchie, na ọla kọpa oyi akwa nke oghere mgbidi bụ kpamkpam emebibeghị na ọla kọpa oyi akwa nke mpụta oyi akwa nke mkpụrụ Njikọta, gụnyere ike bonding ike, nwere ike n'ụzọ dị irè igbochi ọla kọpa oyi akwa na oghere mgbidi na-wepụrụ ma ọ bụ ọla kọpa warping mgbe ịcha;
11. Mgbe ọkara oghere akpụ na-agwụ agwụ, fim na-ewepụ na mgbe ahụ etched, nke mere na ọla kọpa elu agaghị oxidized, n'ụzọ dị irè na-ezere omume nke fọdụrụnụ ọla kọpa ma ọ bụ ọbụna obere sekit, na-eme ka mkpụrụ ọnụego nke metallized ọkara. - oghere PCB sekit osisi.
Ajụjụ
Ọkara oghere ma ọ bụ oghere nke castellated, bụ ọnụ nke nwere stampụ site n'ịbibi ọkara n'ahịrị ahụ.Ọkara oghere dị larịị bụ ọkwa dị elu nke akụkụ dị elu maka mbadamba sekit a na-ebipụta, nke a na-ejikarị eme ihe maka njikọ osisi-na-board.
A na-eji Via dị ka njikọ dị n'etiti akwa ọla kọpa na PCB ebe a na-emekarị PTH karia vias ma jiri ya mee ihe dị ka oghere plated maka ịnakwere ihe ndị na-eduga - dị ka ndị na-abụghị SMT resistors, capacitors, na DIP ngwugwu IC.PTH nwekwara ike iji dị ka oghere maka n'ibu njikọ mgbe vias nwere ike ghara.
Ihe a na-etinye na oghere ndị ahụ bụ ọla kọpa, onye na-eduzi ya, ya mere ọ na-enye ohere ka ọkụ eletrik na-agafe na bọọdụ ahụ.Ndị na-abụghị plated site na oghere enweghị conductivity, ya mere, ọ bụrụ na ị na-eji ha, ị nwere ike na-enwe bara uru ọla kọpa tracks n'otu akụkụ nke osisi.
Enwere ụdị oghere 3 na PCB, Plated through Hole (PTH), Non-Plated through Hole (NPTH) na Via Holes, ndị a ekwesịghị inwe mgbagwoju anya na oghere ma ọ bụ Cut-outs.
Site ọkọlọtọ IPC, ọ bụ +/-0.08mm maka pth, na +/-0.05mm maka npth.
