Kodi pali kusiyana kotani pakati pa AOI ndi SPI20240904

Kumvetsetsa Kuyang'ana kwa SPI: Chinsinsi Pakupanga Zodalirika Zamagetsi

Pazinthu zopanga zamagetsi, kulondola ndi kudalirika ndizofunikira kwambiri. Surface Mount Technology (SMT) yasintha bizinesi, ndikupangitsa kuti pakhale zida zamagetsi zophatikizika komanso zogwira mtima kwambiri. Komabe, ndi kuchulukirachulukira kwa mabwalo ndi zigawo zake, kuwonetsetsa kuti ntchito zamagulu amagetsi izi zakhala zovuta kwambiri. Apa ndipamene Solder Paste Inspection (SPI) imalowa. Kuyang'ana kwa SPI ndi njira yofunika kwambiri yowongolera khalidwe mu SMT yomwe imathandizira kukhalabe ndi miyezo yapamwamba pakupanga zamagetsi. M'nkhaniyi, tikambirana zambiri zaKuwunika kwa SPI, kufunika kwake, njira, ndi zotsatira zake pa khalidwe lonse la misonkhano yamagetsi.

Kodi kuyendera kwa SPI ndi chiyani? 

Solder Paste Inspection (SPI) imatanthawuza njira yowunikira kagwiritsidwe ntchito ka solder paste pa bolodi losindikizidwa (PCB) musanayike zida zamagetsi. Solder phala ndi chisakanizo cha solder flux ndi solder ufa womwe umagwiritsidwa ntchito popanga zida za solder pakati pa zida zamagetsi ndi PCB. Kugwiritsa ntchito koyenera kwa solder phala ndikofunikira chifukwa kumakhudza kudalirika ndi magwiridwe antchito a chinthu chomaliza. SPI imaonetsetsa kuti phala la solder likugwiritsidwa ntchito molondola, mochuluka, komanso m'malo oyenera, kuchepetsa mwayi wa zolakwika pamsonkhano womaliza.

Chifukwa chiyani kuwunika kwa SPI pakupanga zamagetsi?

1.Kupewa Zowonongeka: SPI imagwira ntchito yofunika kwambiri poletsa zolakwika zomwe zimafala monga milatho ya solder, solder yosakwanira, ndi kusalinganika molakwika kwa zigawo. Pozindikira zovutazi kumayambiriro kwa kupanga, SPI imathandiza kupewa kukonzanso ndi kukonza zodula.

2.Improved Kudalirika: Moyenera solder phala ntchito n'kofunika kupanga odalirika solder olowa kuti angathe kupirira makina kupsyinjika ndi m'zinthu matenthedwe. SPI imaonetsetsa kuti phala la solder likugwiritsidwa ntchito mofanana komanso molondola, zomwe zimapangitsa kuti pakhale kudalirika komanso moyo wautali wa chipangizo chamagetsi.

3.Cost Efficiency: Kuzindikira ndi kuthana ndi nkhani zogwiritsira ntchito solder paste kumayambiriro kwa kupanga zimakhala zotsika mtengo kusiyana ndi kuthana ndi mavuto pambuyo poti zigawo zaikidwa kapena kugulitsidwa. SPI imathandizira kuchepetsa nthawi yopanga zinthu komanso kuchepetsa kuwononga zinthu.

4.Kutsata Miyezo: Mafakitale ambiri amafuna kutsata miyezo ndi malamulo apadera. SPI imathandiza opanga kukwaniritsa miyezo imeneyi powonetsetsa kuti solder paste application ikukwaniritsa zofunikira.

Kodi njira zowunikira za SPI ndi ziti?

SPI ikhoza kuchitidwa pogwiritsa ntchito njira zosiyanasiyana, iliyonse ili ndi ubwino wake ndi ntchito zake. Njira zoyambira ndizo:

1.Automated Optical Inspection (AOI): Iyi ndi njira yodziwika bwino ya SPI, yomwe imagwiritsa ntchito makamera apamwamba kwambiri komanso ma aligorivimu osintha zithunzi kuti ayang'ane ntchito ya solder phala. Makina a AOI amatha kuzindikira zolakwika monga kuchulukira kapena kusakwanira phala la solder, kusanja bwino, ndi kumangirira. Machitidwewa ndi opambana kwambiri ndipo amatha kukonza ma PCB ambiri mwachangu.

2.Kuwunika kwa X-ray: Kuwunika kwa X-ray kumagwiritsidwa ntchito kuti azindikire zinthu zomwe sizikuwoneka ndi maso kapena kudzera mu njira zodziwika bwino za kuwala. Ndizothandiza makamaka poyang'ana mawonekedwe amkati a PCBs ambiri osanjikiza ndikuzindikira zinthu ngati milatho yobisika yogulitsira kapena voids.

3.Kuyang'ana pamanja: Ngakhale kuti ndizochepa kwambiri pakupanga mavoti apamwamba, kuyang'ana pamanja kungagwiritsidwe ntchito popanga zing'onozing'ono kapena ngati njira yowonjezera. Oyang'anira ophunzitsidwa bwino amawunika ntchito ya solder phala ndikugwiritsa ntchito zida monga magalasi okulirapo kuti azindikire zolakwika.

4.Laser Inspection: Machitidwe a Laser-based SPI amagwiritsa ntchito ma lasers kuti ayese kutalika ndi kuchuluka kwa ma depositi a solder phala. Njirayi imapereka miyeso yolondola ndipo ndiyothandiza pakuzindikira nkhani zokhudzana ndi kuchuluka kwa mawu ndi kufanana.

Kodi magawo ofunikira mu SPI Inspection ndi chiyani?

Magawo angapo ofunikira amawunikidwa pakuwunika kwa SPI kuti awonetsetse kugwiritsa ntchito phala loyenera. Ma parameter awa akuphatikizapo:

1.Solder Paste Volume: Kuchuluka kwa phala la solder loyikidwa pa pad iliyonse kuyenera kukhala mkati mwa malire omwe atchulidwa. Phala lambiri kapena laling'ono lingayambitse kuwonongeka kwa ma solder.

2.Paste Makulidwe: Makulidwe a solder phala wosanjikiza ayenera kukhala wokhazikika kuonetsetsa kunyowa koyenera ndi kumamatira kwa zigawozo. Kusiyanasiyana kwa makulidwe a phala kumatha kukhudza mtundu wa mgwirizano wa solder.

3.Alignment: Phala la solder liyenera kugwirizanitsidwa bwino ndi mapepala a PCB. Kusalumikizana bwino kungayambitse kusapanga bwino kwa mgwirizano wa solder komanso zovuta zoyika zinthu.

Kugawa kwa 4.Paste: Kugawa kofananira kwa solder phala kudutsa PCB ndikofunikira kuti pakhale zitsulo zosasinthika. Machitidwe a SPI amawunika kugawanika kwa phala kuti ateteze zinthu monga ma solder voids kapena bridging.

Momwe Mungatsimikizire Solder Paste Printing Quality?

● Kuthamanga kwa Squeegee: Kuthamanga kwa mayendedwe a kufinya kumatsimikizira kuti ndi nthawi yochuluka bwanji yomwe solder phala "ikugudubuza" muzobowo za stencil ndi pa mapepala a PCB. Kawirikawiri, kuyika kwa 25mm pa sekondi imodzi kumagwiritsidwa ntchito koma izi zimasinthasintha malinga ndi kukula kwa zobowola mkati mwa stencil ndi phala la solder lomwe limagwiritsidwa ntchito.

● Kupanikizika kwa Squeegee: Panthawi yosindikizira, ndikofunikira kuyika mphamvu yokwanira kutalika konse kwa tsamba lofinya kuti muwonetsetse kupukuta koyera kwa stencil. Kupanikizika pang'ono kungayambitse "kupaka" phala pa stencil, kusamalidwa bwino, ndi kusamutsidwa kosakwanira ku PCB. Kupanikizika kwambiri kungayambitse "kupopera" kwa phala kuchokera kumalo akuluakulu, kuvala kwambiri pa stencil ndi squeegees, ndipo kungayambitse "kutuluka" kwa phala pakati pa stencil ndi PCB. Kukhazikika kokhazikika kwa kupanikizika kwa squeegee ndi 500 magalamu amphamvu pa 25mm ya tsamba la squeegee.

● Finyani Ngongole: Mbali ya squeegee nthawi zambiri imakhala ya 60 ° ndi omwe amawakonzera. Ngati ngodyayo ichulukitsidwa, imatha kupangitsa "kukokera" kwa phala la chosungira kuchokera pamabowo a stencil ndikuyika phala locheperako. Ngati ngodyayo yachepetsedwa, imatha kupangitsa kuti chotsalira cha solder chisiyidwe pa stencil pambuyo pofinya kumaliza kusindikiza.

● Kuthamanga kwa Stencil Kulekana: Ili ndi liwiro lomwe PCB imapatukana ndi stencil pambuyo posindikiza. Kukhazikitsa liwiro la 3mm pamphindikati kuyenera kugwiritsidwa ntchito ndipo kumayendetsedwa ndi kukula kwa zobowola mkati mwa stencil. Ngati izi zikuthamanga kwambiri, zidzachititsa kuti phala la solder lisamatulutse bwino pamabowo ndi kupanga m'mphepete mwapamwamba mozungulira madipoziti, omwe amadziwikanso kuti "makutu agalu".

● Kuyeretsa Masitepe: Stencil iyenera kutsukidwa nthawi zonse mukamagwiritsa ntchito zomwe zitha kuchitika pamanja kapena zokha. Makina osindikizira okha ali ndi makina omwe amatha kuyeretsa stencil pambuyo pa nambala yokhazikika ya prints pogwiritsa ntchito zinthu zopanda lint zomwe zimagwiritsidwa ntchito ndi mankhwala oyeretsa monga Isopropyl Alcohol (IPA). Dongosololi limagwira ntchito ziwiri, yoyamba ndikuyeretsa pansi pa stencil kuti musiye kuwononga, ndipo yachiwiri ndikuyeretsa polowera pogwiritsa ntchito vacuum kuti muyimitse zotsekeka.

● Stencil ndi Squeegee Condition: Ma stencil ndi ma squeegees amayenera kusungidwa mosamala ndikusungidwa chifukwa kuwonongeka kulikonse kwa makina kungayambitse zotsatira zosafunikira. Zonsezi ziyenera kufufuzidwa musanagwiritse ntchito ndikutsukidwa bwino mukatha kugwiritsa ntchito, pogwiritsa ntchito makina otsuka okha kuti zotsalira za solder zichotsedwe. Ngati kuwonongeka kulikonse kukuwoneka kuti squeegee kapena stencil, ziyenera kusinthidwa kuti zitsimikizire njira yodalirika komanso yobwerezabwereza.

● Sindikizani Stroke: Uwu ndi mtunda womwe squeegee amayenda kudutsa cholemberacho ndipo akulimbikitsidwa kukhala osachepera 20mm kudutsa pobowo lakutali kwambiri. Mtunda wodutsa pobowo wakutali kwambiri ndi wofunikira kuti ulole malo okwanira kuti phala lidutsenso pobwereranso ngati kugubuduza kwa solder phala mkanda womwe umatulutsa mphamvu yotsika yomwe imayendetsa phala muzolowera.

Ndi Ma PCB Amtundu Wanji Angasindikizidwe?

Osatengerawolimba,IMS,zolimba-flexkapenaflex PCB(onani athuPCB Kupanga), ngati mphamvu ya PCB ndi yosakwanira kuti ithandizire PCB yokha monga momwe zimafunira pazitsulo za mizere ya SMT, wopanga msonkhano wa PCB adzapempha kuti asintheMtengo wa SMTkapena chonyamulira (chopangidwa ndi Durostone).

Ichi ndi chinthu chofunikira kuwonetsetsa kuti PCB imasungidwa mosadukiza ndi stencil panthawi yosindikiza. Ngati PCB, mosasamala kanthu kuti ndi yolimba, IMS, yokhazikika-yosinthika kapena yosinthika, siyikuthandizidwa mokwanira, imatha kubweretsa zolakwika zosindikiza, monga kusungitsa phala losauka komanso kusefukira. Zothandizira za PCB nthawi zambiri zimaperekedwa ndi makina osindikizira omwe ali atali wokhazikika ndipo amakhala ndi malo otheka kuti awonetsetse kuti zikuyenda bwino. Palinso PCB yosinthika ndipo ndi yothandiza pa msonkhano wa mbali ziwiri.

PRinted Solder Paste Inspection (SPI)

The solder phala kusindikiza ndondomeko ndi chimodzi mwa zinthu zofunika kwambiri pa pamwamba phiri msonkhano ndondomeko. Cholakwika choyambirira chimadziwika kuti chiwonongeko chidzakhala chochepa - lamulo lothandiza kulingalira ndiloti cholakwika chodziwika pambuyo pa kubwezeretsa chidzawononga nthawi 10 kuchuluka kwa kukonzanso kusiyana ndi zomwe zazindikirika zisanachitike - cholakwika chodziwika pambuyo poyesedwa chidzawononga ndalama zina 10. nthawi zambiri kukonzanso. Zikumveka kuti solder phala kusindikiza ndondomeko amapereka mwayi kwambiri kwa zilema kuposa wina aliyense.Njira Zopangira Surface Mount Technology (SMT).. Komanso, kusintha kwa lead-free solder phala ndi kugwiritsa ntchito tinthu tating'onoting'ono zigawo zikuluzikulu, kwawonjezera zovuta ndondomeko yosindikiza. Zatsimikiziridwa kuti phala la solder lopanda kutsogolera silimafalikira kapena "lonyowa" komanso phala la tini lotsogolera solder. Kawirikawiri, ndondomeko yosindikiza yolondola kwambiri imafunika mu ndondomeko yopanda kutsogolera. Izi zakakamiza wopanga kuti agwiritse ntchito mtundu wina wowunika pambuyo posindikiza. Kutsimikizira ndondomeko, basi solder phala kuyendera angagwiritsidwe ntchito kufufuza molondola ma depositi solder phala. Ku RICHFULLJOY, titha kuzindikira zolakwika zina za phala losindikizidwa la solder, ma depositi osakwanira, ma depositi ochulukirapo, mawonekedwe opindika, phala losowa, paste offset, kupaka, bridging ndi zina zambiri.