Porotype yacapishijwe imbaho zumuzunguruko RED ugurisha mask yuzuye imyobo
Ibisobanuro ku bicuruzwa:
Ibikoresho shingiro: | FR4 TG140 |
Ubunini bwa PCB: | 1.0 +/- 10% mm |
Kubara: | 4L |
Ubunini bw'umuringa: | 1/1/1 oz |
Kuvura hejuru: | ENIG 2U ” |
Mask yo kugurisha: | Umutuku |
Ibara rya silike: | Cyera |
Inzira idasanzwe: | Pth igice cyobo kumpera |
Gusaba
Inzira zometseho kimwe cya kabiri ni:
1. Gutunganya igice cyuruhande rwigice hamwe nigikoresho cya kabiri cya V.
2.
3. Shira umuringa kugirango uhindure amashanyarazi substrate, kugirango urwego rwumuringa rushyizwe mumashanyarazi kurukuta rwumwobo rwumuzingi uzengurutse kuruhande.
4. ikibaho kirabyimbye kandi umuringa utwikiriwe nigitereko cyamabati kugirango irwanye ruswa;
5. Igice cya kabiri cyumwobo gabanya umwobo uzengurutse kumpande yikibaho mo kabiri kugirango ugire umwobo;
6. Mu ntambwe yo gukuraho firime, firime yo kurwanya amashanyarazi ikanda mugihe cyo gukanda firime ikurwaho;
7. Gufata substrate irashizwemo, kandi umuringa ugaragara kumurongo winyuma wa substrate ukurwaho no kurigata;
8.
9. Nyuma yo gukora, koresha kaseti itukura kugirango uhuze imbaho zibice hamwe, hanyuma ukureho burr unyuze kumurongo wa alkaline.
10. umuringa wumuringa wurukuta rwumwobo ntaho uhuriye rwose nigice cyumuringa cyurwego rwinyuma rwa substrate Guhuza, birimo imbaraga zikomeye zo guhuza, birashobora kubuza neza urwego rwumuringa kurukuta rwumwobo gukururwa cyangwa kurigata umuringa mugihe ukata;
11. Nyuma yo gukora igice cya mwobo kirangiye, firime irakurwaho hanyuma igashyirwa hejuru, kugirango ubuso bwumuringa butazaba okiside, birinda neza ko habaho umuringa usigaye cyangwa n’umuzunguruko mugufi, kandi bikazamura umusaruro w’igice cya metani. -Ikibaho cyumuzunguruko wa PCB.
Ibibazo
Yashizwemo igice-cyobo cyangwa umwobo, ni impande ya kashe binyuze mu gukata kabiri kumurongo. Igice cya kabiri-umwobo ni urwego rwohejuru rwometseho imbaho zicapishijwe imizunguruko, ubusanzwe ikoreshwa muburyo bwo guhuza imbaho.
Via ikoreshwa nkumuhuza hagati yumuringa kuri PCB mugihe PTH isanzwe ikorwa nini kuruta vias kandi ikoreshwa nkumwobo washyizweho kugirango wemererwe ibice - nkibirwanya bitari SMT, capacator, na DIP pack IC. PTH irashobora kandi gukoreshwa nkibyobo byo guhuza imashini mugihe vias idashobora.
Isahani ku mwobo ni umuringa, kiyobora, bityo ituma amashanyarazi agenda mu kibaho. Kudashyirwa mu mwobo ntibifite ubushobozi, niba rero ubikoresheje, urashobora kugira imirongo yumuringa yingirakamaro kuruhande rumwe rwibibaho.
Hano hari ubwoko 3 bwibyobo muri PCB, Bishyizwe Hanyuze Hobo (PTH), Bidashyizwe Kumurongo (NPTH) na Via Holes, ibi ntibigomba kwitiranywa na Slots cyangwa Cut-outs.
Uhereye kuri IPC isanzwe, ni +/- 0.08mm kuri pth, na +/- 0.05mm kuri npth.