1.Umklamo Wokwenziwa Kwe-PCBA
Idizayini yokwenziwa kwe-PCBA ixazulula inkinga yokuhlangana, futhi inhloso ukuzuza indlela yenqubo emfushane kakhulu, izinga lokuphasa eliphezulu kakhulu, kanye nezindleko zokukhiqiza eziphansi kakhulu.Okuqukethwe kokuklama kufaka phakathi: umklamo wendlela yenqubo, idizayini yesakhiwo sengxenye endaweni yomhlangano, idizayini ye-pad kanye ne-solder mask (okuhlobene nenani lokudlula), idizayini ye-thermal yomhlangano, idizayini yokuthembeka komhlangano, njll.
(1)PCBA Manufacturability
Idizayini yokwenziwa kwe-PCB igxile “ekwenzeni izinto”, futhi okuqukethwe komklamo kuhlanganisa ukukhethwa kwepuleti, isakhiwo esilingana nokucindezela, ukwakheka kwendandatho yonyaka, idizayini yemaski ye-solder, ukwelashwa kwendawo kanye nomklamo wephaneli, njll. Le miklamo yonke ihlobene nekhono lokucubungula i-PCB.Kukhawulwe indlela yokucubungula nekhono, ububanzi bomugqa obuncane nesikhala somugqa, ubuncane bembobo ububanzi, ubuncane bendandatho yephedi ububanzi, kanye negebe elincane lemaski ye-solder kufanele lihambisane nekhono lokucubungula i-PCB.Isitaki esiklanyelwe Isendlalelo kanye nesakhiwo sokucwenga kufanele sihambisane nobuchwepheshe bokucubungula be-PCB.Ngakho-ke, idizayini yokwenziwa kwe-PCB igxile ekuhlangabezaneni namandla enqubo yefekthri ye-PCB, futhi ukuqonda indlela yokukhiqiza ye-PCB, ukugeleza kwenqubo kanye nekhono lenqubo kuyisisekelo sokuqalisa inqubo yokuklama.
(2) Ukuhlangana kwe-PCBA
Idizayini yokuhlanganisa ye-PCBA igxile “ekuhlanganiseni”, okuwukuthi, ukusungula ukucutshungulwa okuzinzile nokuqinile, kanye nokuzuza ukudayiswa kwekhwalithi ephezulu, ukusebenza kahle okuphezulu kanye nezindleko eziphansi.Okuqukethwe komklamo kuhlanganisa ukukhethwa kwephakheji, idizayini yephedi, indlela yokuhlanganisa (noma idizayini yenqubo yenqubo), ukwakheka kwengxenye, idizayini yensimbi yensimbi, njll. Zonke lezi zidingo zokuklama zisekelwe ekuvuthweni okuphezulu kokushisela, ukusebenza kahle okuphezulu kokukhiqiza, kanye nezindleko eziphansi zokukhiqiza.
2.Laser soldering inqubo
Ubuchwepheshe be-laser soldering ukukhanyisela indawo yephedi ngendawo ye-laser egxile ngokunembile.Ngemva kokumunca amandla e-laser, indawo ye-solder ishisa ngokushesha ukuze incibilikise i-solder, bese imisa i-laser irradiation ukuze ipholise indawo ye-solder futhi iqinise i-solder ukuze yakhe i-solder joint.Indawo yokushisela iyashisisa endaweni, futhi ezinye izingxenye zawo wonke umhlangano azithintwa ukushisa.Isikhathi se-laser irradiation ngesikhathi sokushisela ngokuvamile singamakhulu ambalwa ama-milliseconds.I-soldering engathinteki, akukho ukucindezeleka komshini ku-pad, ukusetshenziswa kwendawo ephakeme.
I-laser welding ilungele inqubo ekhethiwe yokuphinda ifakwe kabusha noma izixhumi zisebenzisa i-tin wire.Uma kuyingxenye ye-SMD, udinga ukufaka i-solder paste kuqala, bese u-solder.Inqubo ye-solder ihlukaniswe ngezinyathelo ezimbili: okokuqala, i-solder paste idinga ukushiswa, futhi amalunga e-solder aphinde ashiswe.Ngemuva kwalokho, i-solder paste esetshenziselwa ukugcoba iyancibilika ngokuphelele, futhi i-solder imanzisa ngokuphelele i-pad, ekugcineni yenza i-solder joint.Ukusebenzisa i-laser generator kanye ne-optical focusing components ukushisela, ukuminyana kwamandla aphezulu, ukusebenza kahle kokudlulisa ukushisa, ukushisela okungaxhunywanga, i-solder ingaba i-solder paste noma i-tin wire, elungele kakhulu ukushisela amalunga amancane e-solder ezindaweni ezincane noma amalunga amancane anamandla aphansi. , ukonga amandla.
3.Laser welding izidingo design for PCBA
(1) Ukukhiqiza okuzenzakalelayo kokudluliselwa kwe-PCBA kanye nomklamo wokuma
Ngokukhiqiza nokuhlanganisa okuzenzakalelayo, i-PCB kufanele ibe nezimpawu ezihambisana nokuma kokubona, njengamaphoyinti ka-Mark.Noma umehluko wephedi uyabonakala, futhi ikhamera ebonakalayo ibekwe.
(2) Indlela ye-welding inquma ukuhlelwa kwezingxenye
Indlela ngayinye ye-welding inezidingo zayo zokuhlelwa kwezingxenye, futhi ukuhlelwa kwezingxenye kufanele kuhlangabezane nezidingo zenqubo ye-welding.Ukuhlelwa kwesayensi nokunengqondo kunganciphisa amalunga amabi e-solder futhi kunciphise ukusetshenziswa kwamathuluzi.
(3) Dizayina ukuthuthukisa izinga lokudlula nge-welding
Idizayini ehambisanayo yephedi, ukumelana ne-solder, kanye ne-stencil Iphedi nesakhiwo sephini sinquma ukuma kwelunga le-solder futhi sinquma ikhono lokumunca i-solder encibilikisiwe.Idizayini enengqondo yembobo efakwayo ifinyelela izinga lokungena likathayela elingu-75%.