Indlela Yokuvimbela Imigodi Engenayo Ithusi Kuma-PCB Asezingeni Eliphezulu: Ulwazi Olubalulekile Lokukhiqiza Ama-PCB

Ukuqonda Ukubaluleka Kwesilinganiso Sobukhulu Bembobo Nobukhulu Ekukhiqizweni Kwe-PCB

Ekukhiqizweni kwe-PCB, isilinganiso sobukhulu bembobo nobukhulu, eyaziwa nangokuthi i- isilinganiso sesici, kuyisici esibalulekile esithonya ikhwalithi yokufakwa kwemigodi. Lesi silinganiso sibalwa ngokuhlukanisa ubukhulu be-PCB ngobubanzi bemigodi, okuvame ukubizwa ngokuthi isilinganiso sobude kuya kobubanzi (L/D).

Isibonelo, uma ukujiya kwe-PCB kungu-1.60 mm kanti ububanzi bembobo bungu-0.2 mm, isilinganiso se-aspect singu-8:1. Izilinganiso ze-aspect eziphansi zibonisa amabhodi amancane anezimbobo ezinkulu, okuvame ukuphumela emiphumeleni engcono ye-plating ngenxa yokusatshalaliswa kwama-ion okulinganayo ngesikhathi senqubo ye-electroplating.

Nokho, ama-PCB anesilinganiso esiphakeme—lezo ezinamabhodi amancane nezimbobo ezincane—zibangela izinselele ezinkulu ngesikhathi senqubo yokufaka i-electroplating, okuholela ezinkingeni ezifana nokuthi izimbobo ezingenayo ithusi (eyaziwa nangokuthi "i-blind vias" noma "i-voids") kanye ne-plating esezingeni eliphansi.

Yini Ebangela Izimbobo Ezingenathusi Kuma-PCB Asezingeni Eliphezulu?

1. Amabhamuza Amancane Nokuvinjelwa
   Ngokwesiko i-electroplating yamanje aqondile (DC) Uma inqubo iqhubeka, isixazululo se-electroplating singabamba ama-micro-bubbles emgodini, sivimbele ithusi ukuthi lingambozi ngokulinganayo izindonga zemigodi. Lawa ma-bubbles angavimba ukugeleza kwethusi, okuholela ezindaweni ezingenakho ukubekwa kwethusi okwanele.
2. Ukuhlanzwa Okubi Ngesikhathi Sokwelashwa Kwangaphambi Kokwelashwa
   Uma i-PCB ingahlanzwa kahle ngaphambi kokufaka iplati, ukungcola noma izinsalela zingase zihlale ngaphakathi kwemigodi. Lokhu kuvimbela ithusi ukuthi linganamatheli ezindongeni zemigodi, okudala izikhala kanye nezindawo ezibuthakathaka.
3. Amaphutha Okubhoboza
   Uma ubhoboza imigodi enesilinganiso esiphezulu, uma i-drill bit ingabukhali ngokwanele, ingabangela izinkinga ebusweni bangaphakathi bembobo. Esikhundleni sokususa izinto kahle, i-drill bit ingase idonse futhi idabule i-resin noma i-fiberglass, ishiye izindawo ezimahhadlahhadla. Lokhu kungaphazamisa inqubo yokubopha futhi kuholele ekunamatheleni okungekuhle kwethusi.

Indlela Isilinganiso Esiphezulu Esithinta Ngayo Ikhwalithi Yokusonga

Ngoba ama-PCB anesilinganiso esiphakeme (isb., 14:1, 16:1, noma ngisho no-20:1), inqubo yokubopha iba yinselele kakhulu. Isixazululo se-electroplating siyahluleka ukufaka ithusi ngokulinganayo, ikakhulukazi ezindaweni zangaphakathi zemigodi, okuholela ku- umphumela wethambo nenjaLokhu kusho ukuthi ingxenye ephezulu yembobo iba banzi kuyilapho ingxenye engezansi ihlala ingaphansi kwesembozo.

Ngaphezu kwalokho, umgodi ubuningi bamanje kagesi kuyahlukahluka kulo lonke umgodi. Emnyango womgodi, ubuningi bamanje buphakeme, kanti ezingxenyeni ezijulile, buphansi. Lokhu kusatshalaliswa okungalingani kuholela ekufakweni kabi kwezingxenye ezingezansi zomgodi, okufaka isandla ekwakhekeni kwe izimbobo ezingenayo ithusi.

Izixazululo Ezithuthukisiwe Zokuvimbela Imigodi Engenayo Ithusi Kuma-PCB Anesilinganiso Esiphezulu

Ukuze kugwenywe lezi zinkinga, izimboni zokukhiqiza ze-PCB zanamuhla ziphendukela ku- i-pulse plating ubuchwepheshe, obunqoba imikhawulo eminingi ye-DC electroplating yendabuko.

I-Pulse Plating Yokufakwa Kwethusi Okufanayo

I-pulse plating isebenzisa ugesi oshintshashintshayo nama-pulse alawulwayo ukwandisa ukusebenza kahle kokufakwa kwethusi. Ngokungafani ne-DC plating evamile, i-pulse plating ithuthukisa ukunyakaza kwama-ion ngaphakathi kwembobo, okuvumela ukufakwa kwethusi okufanayo kakhulu emgodini, kokubili emnyango nasezindaweni ezijulile. Lokhu kuphumela ekhwalithini engcono yokufakwa kwethusi futhi kugwema ukwakheka kwemigodi engenathusi.

Ngaphezu kwalokho, i-pulse plating iqinisekisa ukuthi ithusi lifakwa ngokulinganayo ngaphandle kokukhulisa kakhulu ukujiya kwethusi ebusweni bebhodi, kugcina ubuqotho bezifunda ezinobukhulu obuphezulu, imigqa emincane, kanye nokuphazamiseka kokunemba.

Amanye Amasu

1. Amasu Okubhoboza Athuthukisiwe
   Ukusebenzisa ama-drill anembile kakhulu kungaqinisekisa ukuthi imigodi ibushelelezi futhi ihlanzekile, kuthuthukise ikhwalithi yendawo futhi kuqinisekiswe ukuthi inqubo yokufaka i-plating isebenza kahle kakhulu.
2. Ukwelashwa Kwangaphambi Kokwelashwa Okulungiselelwe
   Ukuhlanza nokulungisa kahle izimbobo ze-PCB kungaqinisekisa ukunamathelana okungcono kwethusi. ukuqopha amakhemikhali noma ukuhlanzwa kwe-plasma amasu angasusa noma yikuphi ukungcola futhi athuthukise ikhwalithi yodonga lwembobo, okuholela emiphumeleni engcono yokubopha.
3. Ukusetshenziswa Kwemishini Yokucwebezela Ethuthukisiwe
   Izimboni ze-PCB zesimanje zisebenzisa imishini eyenzelwe ngqo ukuphatha ama-PCB anesilinganiso esiphezulu. Lokhu kufaka phakathi amathangi e-electroplating athuthukisiwe, izinhlelo zokuhlunga izixazululo ezithuthukisiwe, kanye nezindlela zokulawula zamanje ezingcono.

Ungawenza kanjani umgodi esithombeni esingezansi?

✅Isixazululo: I-VCP ye-Richfulljoy evuvukile ingagwema ukwenzeka njalo kwemigodi nezimbobo eziningi ku-DC plating. Ukusebenza kahle kwe-high current density plating kuphezulu, futhi ngaphansi kohlelo lwe-pulse plating, kungenza ingaphakathi nangaphandle kwembobo kube kuhle kakhulu. Umphumela wokusatshalaliswa kwe-coating ungatholakala, futhi ithusi elingaphezulu alikhuli, futhi ithusi elingaphezulu alikhuli, futhi isekethe elincane kanye ne-impedance enembile kakhulu kungaqinisekiswa.

Ukuthuthukisa Ikhwalithi Ekukhiqizweni Kwe-PCB Yesilinganiso Esiphezulu

Ekukhiqizweni kwe-PCB okunesilinganiso esiphakeme, ukuvimbela izimbobo ezingenayo ithusi kubalulekile ekugcineni ubuqotho bomkhiqizo kanye nokusebenza kwawo. Ngokuqonda izinselele ezihambisana nokufakwa kwe-plating ekwakhiweni kwesilinganiso se-aspect ratio ephezulu kanye nokusebenzisa ubuchwepheshe obuthuthukisiwe obufana i-pulse plating, abakhiqizi be-PCB bangaqinisekisa ikhwalithi yokufakwa kweplati ehambisanayo nethembekile.

Uma uhilelekile ku- Ukwenziwa kwe-PCB noma ukusebenza ne Izimboni zokukhiqiza ze-PCB, kubalulekile ukuqaphela lawa masu nokusebenzisana nabakhiqizi abanolwazi lokuphatha ama-PCB anesilinganiso esiphezulu ngobuchwepheshe bamuva.