- Kuyini ukubhola ngemuva?
Ukubhola emuva kuwuhlobo olukhethekile lokubhoboza imbobo ejulile. Ekukhiqizeni amabhodi anezingqimba eziningi, njengamabhodi angu-12-layer, sidinga ukuxhuma ungqimba lokuqala kungqimba lwesishiyagalolunye. Ngokuvamile, sibhoboza imbobo (i-drill eyodwa) bese sicwilisa ithusi.Ngale ndlela, isitezi sokuqala sixhunywe ngokuqondile esitezi se-12. Eqinisweni, sidinga kuphela isitezi sokuqala ukuxhuma esitezi sesi-9, kanye nesitezi se-10 kuya ku-12 ngoba akukho uxhumano lomugqa, njengensika.Le nsika ithinta indlela yesignali futhi ingabangela izinkinga zobuqotho besignali ku. amasiginali okuxhumana.Ngakho-ke bhora ikholomu engasadingeki (STUB embonini) ukusuka ohlangothini olungemuva (ukubhola okwesibili).Okubizwa ngokuthi i-back drill, kodwa ngokuvamile ayibholi ihlanzeke kakhulu, ngoba inqubo elandelayo izokhipha i-electrolysis yethusi elincane, kanye nethiphu yokubhoboza. yona ngokwayo ikhonjiwe.Ngakho-ke, umkhiqizi we-PCB uzoshiya iphuzu elincane. Ubude be-STUB bale STUB bubizwa ngevelu engu-B, ngokuvamile ebangeni elingu-50-150um.
2.Izinzuzo zokubhola emuva
1) ukunciphisa ukuphazamiseka komsindo
2) thuthukisa ubuqotho besignali
3) ukushuba kwepuleti lendawo kuncipha
4) ukunciphisa ukusetshenziswa kwezimbobo eziyizimpumputhe ezingcwatshwe futhi kunciphise ubunzima bokukhiqizwa kwe-PCB.
3. Ukusetshenziswa kokubhola emuva
Emuva ekubhoboleni i-drill ibingenakho ukuxhumana noma umthelela wesigaba sembobo, gwema ukubangela ukubonakaliswa kokudluliswa kwesignali enesivinini esikhulu, ukuhlakazeka, ukubambezeleka, njll., kuletha isignali "ukuhlanekezela" ucwaningo lubonise ukuthi okuyinhloko izici ezithonya umklamo wobuqotho besignali yesistimu yesignali, impahla yepuleti, ngaphezu kwezinto ezifana nemigqa yokudlulisela, izixhumi, amaphakheji we-chip, imbobo yomhlahlandlela inomthelela omkhulu kubuqotho besignali.
4. Isimiso sokusebenza sokubhola emuva
Lapho inaliti yokubhoboza ibhoboza, i-micro current ekhiqizwa lapho inaliti yokubhoboza ithinta ucwecwe lwethusi olungaphezulu kwe-base plate izokwenza ukuphakama kwepuleti, bese ukubhola kuzokwenziwa ngokuya ngokujula kokumba okusethiwe, futhi i-drill izomiswa lapho ukujula kokumba kufinyelelwe.
I-5.Inqubo yokukhiqiza yokumba emuva
1) hlinzeka nge-PCB ngembobo yamathuluzi. Sebenzisa imbobo yamathuluzi ukubeka i-PCB bese ubhoboza imbobo;
2) ukufaka i-PCB nge-electroplating ngemva kokubhoboza imbobo, bese uvala imbobo ngefilimu eyomile ngaphambi kwe-electroplating;
3) yenza ihluzo zesendlalelo sangaphandle ku-PCB ene-electroplated;
I-4) yenza i-electroplating yephethini ku-PCB ngemva kokwenza iphethini yangaphandle, futhi iqhube ukuvala ifilimu eyomile yembobo yokubeka ngaphambi kwephethini ye-electroplating;
5) sebenzisa imbobo yokubeka esetshenziswa i-drill eyodwa ukuze umise i-drill yangemuva, futhi usebenzise i-drill cutter ukubhoboza imbobo ye-electroplating okudingeka ibuye ibhojwe;
6) Geza emuva kokubhola ngemva kokubhola emuva ukuze ukhiphe izinsalela zokusika ekubhoboleni emuva.
6. Izici zobuchwepheshe ze-back drilling plate
1) Ibhodi eliqinile (iningi)
2) Imvamisa kuba yizingqimba eziyi-8 – 50
3) Ibhodi ukujiya: phezu 2.5mm
4) Ubukhulu bobukhulu bukhulu
5) Usayizi webhodi mkhulu
6) Ubuncane bembobo ububanzi bokubhola kokuqala ngu> = 0.3mm
7) Isifunda sangaphandle sincane, idizayini yesikwele eyengeziwe yembobo yokucindezela
8) Imbobo engemuva ivamise ukuba mkhulu ngo-0.2mm kunomgodi okumele ubhojwe
9) Ukujula kokubekezelela kungu-+/- 0.05mm
10) Uma i-drill yangemuva idinga ukubhola kuze kufike ku-M ungqimba, ubukhulu bendawo ephakathi kwe-M layer kanye ne-m-1 (ungqimba olulandelayo lwe-M layer) buyoba ubuncane obungu-0.17mm.
7.Ukusetshenziswa okuyinhloko kwepuleti lokubhola emuva
Imishini yokuxhumana, iseva enkulu, i-electronics yezokwelapha, ezempi, i-aerospace kanye neminye imikhakha. Njengoba ezempi kanye ne-aerospace kuyizimboni ezizwelayo, Indiza engemuva yasekhaya imvamisa ukuhlinzekwa yisikhungo socwaningo, isikhungo socwaningo nentuthuko yezinhlelo zezempi nezasemoyeni noma abakhiqizi be-PCB abanesizinda esiqinile sezempi kanye ne-aerospace.E-China, isidingo sendiza engemuva ngokuyinhloko sivela kwezokuxhumana. imboni, futhi manje insimu yokukhiqiza imishini yezokuxhumana iyathuthuka kancane kancane.