4 Apa ENIG Impedance Half Hole PCB
Tikanga Tukatuka o Metallized Half Hole PCB Drilling
Ko te hawhe-poka whakarewa motuhake me mahi penei: ko nga kohao katoa o te hawhe-poka PCB me peera i te huarahi o te keri i muri i te tuhi whakakikorua me i mua i te tarai, me werohia tetahi kohao ki nga waahi whakawhiti i nga pito e rua o te haurua poka.
1) Whakaritehia te tukanga MI kia rite ki te tukanga hangarau,
2) ko te kohao hawhe whakarewa he drill drill (go out ranei), ahua i muri whakakikorua, i mua i te tuhi e rua drill hawhe poka, me whakaaro te ahua o te awaawa gong e kore e whakaatu parahi, wiri hawhe poka ki te nekehanga wae,
3) Te poka matau (drill half hole)
A. Te wero i te tuatahi, katahi ka huri i te pereti (whakaata whakaata ranei);Porohia ki te taha maui
B. Ko te kaupapa he whakaiti i te toia o te maripi wiri i runga i te parahi i roto i te kohao o roto o te kohao haurua, ka mutu te ngaro o te parahi i roto i te rua.
4) E ai ki te mokowhiti o te raina porotiti, ka whakatauhia te rahi o te puha puha o te haurua poka.
5) Tuhia he kiriata whakaahuru, ka whakamahia nga gongs hei waahi aukati hei whakatuwhera i te matapihi me te whakanui i te matapihi ma te 4mil