Gushyira PCB mu cyuma: Gusobanukirwa inzira n'akamaro kayo

Imiyoboro yacapwe (PCBs) ni igice cy'ingenzi cy'ibikoresho by'ikoranabuhanga bigezweho, ikaba ari ishingiro ry'ibice bituma ibyo bikoresho bikora. Imiyoboro ya PCB igizwe n'ibikoresho bya substrate, ubusanzwe bikozwe muri fiberglass, ifite inzira ziyobora zishushanyije cyangwa zicapishijwe hejuru kugira ngo ihuze ibice bitandukanye by'ikoranabuhanga. Kimwe mu bintu by'ingenzi mu gukora PCB ni ugushyiramo irangi, bigira uruhare runini mu kwemeza imikorere n'ubwizerwe bya PCB. Muri iyi nkuru, turaza kwibanda ku nzira yo gushyiramo irangi rya PCB, akamaro kayo, n'ubwoko butandukanye bwo gushyiramo irangi bukoreshwa mu gukora PCB.

PCB Plating ni iki?

Gushyira icyuma mu cyuma ni uburyo bwo gushyira urwego rworoshye rw'icyuma ku buso bwa PCB n'inzira ziyobora amashanyarazi. Ubu buryo bugira akamaro kenshi, harimo kongera ubushobozi bwo gutwara amashanyarazi mu nzira, kurinda ubuso bw'umuringa bugaragara kwangirika no kwangirika, no gutanga ubuso bwo gusodera ibice by'ikoranabuhanga ku kibaho. Ubusanzwe uburyo bwo gushyira icyuma mu cyuma bukoreshwa mu buryo butandukanye bwa elegitoroniki, nko gushyira icyuma mu cyuma kidakoresha amashanyarazi cyangwa gushyira icyuma mu cyuma, kugira ngo hagerwe ku bunini n'imiterere byifuzwa by'urwego rushinzwe amashanyarazi.

Akamaro ko gushyira PCB mu cyuma

Gushyiramo PCB ni ingenzi kubera impamvu nyinshi. Icya mbere, bituma inzira z'umuringa zigenda neza, bigatuma ibimenyetso by'amashanyarazi bishobora gutembera neza hagati y'ibice. Ibi ni ingenzi cyane mu bikorwa byo mu buryo bwihuse n'umuvuduko mwinshi aho ubuziranenge bw'ibimenyetso ari ingenzi cyane. Byongeye kandi, urwego rw'icyuma gikozwe mu cyuma rukora nk'uruzitiro ku bintu bifitanye isano n'ibidukikije nk'ubushuhe n'ibintu bihumanya, bishobora kwangiza imikorere ya PCB uko igihe kigenda gihita. Byongeye kandi, icyuma gikozwe mu cyuma gitanga ubuso bwo gusodera, bigatuma ibice by'ikoranabuhanga bifatwa neza ku kibaho, bigatuma habaho imikoranire y'amashanyarazi yizewe.

Ubwoko bwa PCB Plating

Hari ubwoko butandukanye bwo gupfunyika bukoreshwa mu gukora PCB, buri bumwe bufite imiterere yabwo n'imikorere yabwo yihariye. Bumwe mu bwoko busanzwe bwo gupfunyika PCB burimo:

1. Indabyo z'amashanyarazi zidafite amashanyarazi (ENIG): Indabyo za ENIG zikoreshwa cyane mu nganda za PCB bitewe nuko zirwanya ingese kandi zishobora gushonga. Zigizwe n'urwego rwo hasi rwa nikeli idafite amashanyarazi rukurikirwa n'urwego rwa zahabu yo kwibiramo, zitanga ubuso burambuye kandi bworoshye bwo gushonga mu gihe zirinda umuringa wo munsi kwangirika.

2. Zahabu ikozwe mu buryo bw'amashanyarazi: Ikoreshwa rya zahabu ikozwe mu buryo bw'amashanyarazi rizwiho ubushobozi bwayo bwo gutwara ibintu no kurwanya kwangirika, bigatuma ikoreshwa ahantu hakenewe ubwizigirwa bwinshi no kuramba. Ikunze gukoreshwa mu bikoresho by'ikoranabuhanga bigezweho no mu bikoresho by'indege.

3. Ibati rikozwe mu buryo bwa Electroplated: Ibati rikoreshwa cyane nk'uburyo buhendutse bwo gukoresha PCB. Ritanga ubushobozi bwo gusonerwa no kurwanya ingese, bigatuma rikoreshwa mu bikorwa rusange aho ikiguzi ari ikintu cy'ingenzi.

4. Ifu ya feza ikozwe mu buryo bwa electroplated: Ifu ya feza itanga ubushobozi bwo gutwara ibintu neza kandi ikunze gukoreshwa mu bikorwa byo hejuru aho ubuziranenge bw'ibimenyetso ari ingenzi. Ariko, ikunze kwangirika cyane ugereranije n'ifu ya zahabu.

Uburyo bwo Gushyiramo Indabyo

Ubusanzwe igikorwa cyo gupfunyika gitangirana no gutegura substrate ya PCB, bikubiyemo gusukura no gukoresha ubuso kugira ngo habeho gufatana neza kw'urwego rupfunyika. Mu gihe cyo gupfunyika nta mashini zikoresha amashanyarazi, ubwogero bw'imiti burimo icyuma gipfunyika bukoreshwa mu gushyira urwego ruto kuri substrate binyuze mu buryo bwa catalytic reaction. Ku rundi ruhande, gupfunyika hakoreshejwe electroplating bikubiyemo kwinjiza PCB mu gikoresho cya electrolyte hanyuma ugashyiramo umuriro w'amashanyarazi kugira ngo icyuma gipfunyike hejuru.

Mu gihe cyo gushyiramo irangi, ni ngombwa kugenzura ubugari n'ubugari bw'urupapuro rutwikiriwe kugira ngo huzuzwe ibisabwa byihariye by'igishushanyo mbonera cya PCB. Ibi bigerwaho binyuze mu kugenzura neza ibipimo by'urupapuro, nko kuba imiterere y'umuti utwikiriwe, ubushyuhe, ubucucike bw'umuvuduko w'amashanyarazi, n'igihe cyo gushyiramo irangi. Ibipimo byo kugenzura ubuziranenge, harimo gupima ubunini n'ibizamini byo gufatana, nabyo birakorwa kugira ngo harebwe ko urupapuro rutwikiriwe neza.

Imbogamizi n'ibyo ugomba kwitaho

Nubwo gushyiramo PCB bitanga inyungu nyinshi, hari imbogamizi zimwe na zimwe n'ibyihutirwa bijyana n'iyi gahunda. Imbogamizi imwe ikunze kugaragara ni ukugera ku bugari bungana bwo gushyiramo PCB yose, cyane cyane mu miterere igoye ifite ubucucike butandukanye bw'imiterere. Ibitekerezo bikwiye ku miterere, nko gukoresha udupfukamunwa two gushyiramo imashini n'ibice bya impedance bigenzurwa, ni ingenzi kugira ngo habeho gushyiramo imashini imwe kandi amashanyarazi akore neza.

Ibitekerezo ku bidukikije nabyo bigira uruhare runini mu gupfunyika kwa PCB, kuko imiti n'imyanda ikomoka mu gihe cyo gupfunyika bishobora kugira ingaruka ku bidukikije. Kubera iyo mpamvu, abakora PCB benshi barimo gukoresha uburyo bwo gupfunyika n'ibikoresho bitangiza ibidukikije kugira ngo bagabanye ingaruka ku bidukikije.

Byongeye kandi, guhitamo ibikoresho byo gushyiramo ibyuma n'ubugari bigomba guhuza n'ibisabwa byihariye bya porogaramu ya PCB. Urugero, ibyuma bya elegitoroniki byihuta bishobora gusaba ko ibyuma bishyirwamo ibyuma binini kugira ngo bigabanye igihombo cy'ibimenyetso, mu gihe ibyuma bya RF na microwave bishobora kungukirwa n'ibikoresho byihariye byo gushyiramo ibyuma kugira ngo bigumane ubuziranenge bw'ibimenyetso ku murongo wo hejuru.

Ingendo z'ejo hazaza mu gushushanya PCB

Uko ikoranabuhanga rikomeza gutera imbere, urwego rwo gushyiramo PCB narwo rurimo gutera imbere kugira ngo ruhuze n'ibikenewe mu bikoresho by'ikoranabuhanga byo mu gisekuru gitaha. Imwe mu nzira igaragara ni iterambere ry'ibikoresho byo gushyiramo ibikoresho bigezweho n'inzira zitanga imikorere myiza, ubwizerwe, no kubungabunga ibidukikije. Ibi birimo gushakisha ibyuma bisimbura ibindi byo gushyiramo ibikoresho n'ibisoza ubuso kugira ngo hakemurwe ingorane zigenda ziyongera no gutonda ibice by'ibikoresho by'ikoranabuhanga.

Byongeye kandi, guhuza tekiniki zigezweho zo gupfunyika, nka pulse na reverse pulse plating, birimo kwiyongera kugira ngo bigere ku bunini bwiza bw'imiterere n'ibipimo by'ubuso biri hejuru mu miterere ya PCB. Ubu buryo butuma habaho kugenzura neza inzira yo gupfunyika, bigatuma habaho uburinganire n'ubudahinduka muri PCB.

Mu gusoza, gushyira PCB mu mapine ni ingenzi cyane mu gukora PCB, bigira uruhare runini mu kwemeza imikorere, ubwizerwe, n'imikorere y'ibikoresho by'ikoranabuhanga. Uburyo bwo gushyiramo amapine, hamwe n'uburyo bwo guhitamo ibikoresho n'ubuhanga byo gushyiramo amapine, bigira ingaruka ku miterere y'amashanyarazi n'imashini za PCB. Uko ikoranabuhanga rikomeza gutera imbere, iterambere ry'ibisubizo bishya byo gushyiramo amapine bizaba ingenzi kugira ngo habeho ibyifuzo bihora bihinduka by'inganda z'ibikoresho by'ikoranabuhanga, bigatera imbere kandi hagakorwa udushya mu nganda za PCB.

T: Gushyira PCB mu cyuma: Gusobanukirwa inzira n'akamaro kayo

D: Udukoresho twacapwe (PCBs) ni igice cy'ingenzi cy'ibikoresho by'ikoranabuhanga bigezweho, bikaba ari byo shingiro ry'ibice bituma ibyo bikoresho bikora. Udukoresho twa PCB tugizwe n'ibikoresho bya substrate, ubusanzwe bikozwe muri fiberglass, bifite inzira ziyobora amazi zishushanyije cyangwa zicapishijwe hejuru kugira ngo bihuze ibice bitandukanye by'ikoranabuhanga.

K: gupakira pcb