Ni gute wamenya neza inenge zitagaragara za PCBA?
Amabwiriza yo kugenzura X-RAY
1. Imiyoboro ya BGA solder nta mpungenge igira:
Ibipimo ngenderwaho mu guca urubanza: byemewe iyo ingano iri munsi ya kimwe cya kabiri cy'umuzenguruko w'ipamba yo gusoda; Iyo ingano iri hejuru cyangwa ingana na kimwe cya kabiri cy'umuzenguruko w'ipamba yo gusoda, ntigomba kwangwa.
2. Imiyoboro ya BGA solder nta muyoboro mugufi igira:
Ibipimo ngenderwaho mu guca urubanza: Iyo nta tin ifitanye isano hagati y’imigozi y’icyuma, iremewe; Iyo hari connection hagati y’imigozi y’icyuma, iranze.
3. Ingano za BGA zidafite ububobere:
Ibipimo ngenderwaho mu guca urubanza: Agace k'ubusa kari munsi ya 20% by'ubuso bwose bw'aho ufatanye n'umushoferi karemewe; Niba agace k'ubusa kari hejuru cyangwa kangana na 20% by'ubuso bwose bw'aho ufatanye n'umushoferi, karanze.
4. Nta kibazo cy'ibati mu miyoboro ya BGA solder:
Ibipimo ngenderwaho: Byemerwa iyo imipira yose y'ibumba igaragaza ingano yuzuye, isa kandi ijyanye; Niba ingano y'umupira w'ibumba ari nto cyane ugereranije n'indi mipira y'ibumba iwukikije, igomba kwangwa.
5. Igipimo ngenderwaho cyo kugenzura E-PAD y'imashini zikoreshwa mu gusya za QFP/QFN ku bicuruzwa bimwe na bimwe ni uko ubuso bw'ibati bugomba kuba burenga 60% by'ubuso bwose (imigozi ine ivanze igaragaza ko ikoreshwa neza), kandi igipimo cy'ingero ni 20%.
1. Intego y'igerageza: Ibibaho bya PCBA bifite BGA/LGA n'ibice by'ubutaka;
2. Inshuro zo gupima:
① Nyuma yo guhindura, abakozi ba tekiniki bemeza niba ikibaho cya mbere cyo gusoda hamwe n'aho BGA ikorera hari inenge zo gutandukana, hanyuma bagakomeza kunyura mu cyumba nyuma yo kwemeza ko nta kibazo kirimo;
② Abakozi ba tekiniki bemeza niba hari ikibazo kiri mu gusoda kwa BGA kw'ikibaho cya mbere cyo gusoda nyuma yo kunyura mu cyumba, hanyuma bakagishyira mu bikorwa niba nta kibazo kirimo;
③ Mu gihe cy'umusaruro usanzwe, abakozi bagenwe nibo bashinzwe isuzuma, kandi niba hatumijwe ≤ 100pcs, 100% bigomba gupimwa byuzuye; 101-1000pcs bigomba gupimwa kuri 30%, 30% bigomba gutegekwa birenga 1001pcs;
④ Mu gihe cy'ibikorwa bisanzwe byo gukora, IPQC ikora ibizamini byo gupima ku bice bibiri binini mu isaha;
⑤ Ibicuruzwa bigomba kugeragezwa 100% kandi amafoto agomba kubikwa 100%.
3. Niba hari inenge, amafoto agomba kubikwa, kandi moderi ya BOM, inomero ya barcode hamwe n'ibisubizo by'ibizamini by'ibicuruzwa byageragejwe bigomba kwandikwa muri fomu ya X-Ray Test Record. Ongeraho amashusho yo gusodera ya QFP na QFN grounding pads, hanyuma uzigame 100% by'amafoto.
4. Iyo hari inenge mu gihe cyo gupima, zigomba guhita zimenyeshwa umuyobozi mukuru n'umuhanga mu gutunganya imikorere kugira ngo byemezwe.
Impuguke mu kugenzura X-ray y'inganda mu buhanga mu by'ubugenzuzi
Sisitemu y'ibikoresho bya X-RAY igizwe ahanini n'ibice birindwi: isoko ya X-ray yoroshye, ishami rishinzwe gufata amashusho, sisitemu yo gutunganya amashusho ya mudasobwa, sisitemu ya mekanike, sisitemu yo kugenzura amashanyarazi, sisitemu yo kurinda umutekano n'isitemu yo kuburira. Ihuza isuzuma ridasenya, ikoranabuhanga rya porogaramu za mudasobwa, ikoranabuhanga ryo kubona no gutunganya amashusho n'ikoranabuhanga ryo kohereza amashusho, rikubiyemo amashami ane y'ingenzi ya tekiniki yo gutunganya amashusho y'amashusho, mekanike, amashanyarazi na digitale. Binyuze mu itandukaniro ry'imirasire ya X ikoreshwa n'ibikoresho bitandukanye, imiterere y'imbere y'ikintu irafatwa amashusho kandi hagakorwa isuzuma ry'inenge imbere. Ishusho yo kumenya ibicuruzwa ishobora kugaragara mu gihe nyacyo kugira ngo hamenyekane niba hari inenge, ubwoko bw'inenge n'urwego rw'inganda mu gicuruzwa. Muri icyo gihe, sisitemu yo gutunganya amashusho ya mudasobwa ikoreshwa mu kubika no gutunganya amashusho kugira ngo inoze ishusho kandi irebe neza ko isuzuma ari ukuri. Ishobora gupima mu buryo bwikora uduce tw'ibice bya elegitoroniki bipakiye nka BGA na QFN, kandi igashyigikira ibipimo bya geometrike nk'intera, inguni, umurambararo, na poligoni. Ishobora kubona ahantu henshi ho gupima, bigatuma ibicuruzwa biva mu ruganda nta nenge bifite.
