Ndeupi musiyano uripo pakati peAOI neSPI20240904
Kunzwisisa SPI Kuongorora: Kiyi yeKuvimbika Electronics Kugadzira
Munzvimbo yekugadzirwa kwemagetsi, kunyatsoita uye kuvimbika kunokosha. Surface Mount Technology (SMT) yakasandura indasitiri iyi, ichigonesa kugadzirwa kwezvakakwana uye zvine hunyanzvi zvemagetsi zvishandiso. Nekudaro, nekuwedzera kuomarara kwemaseketi uye zvikamu, kuve nechokwadi chemhando uye kushanda kweaya magungano emagetsi kwave kunetsa. Apa ndipo panopinda Solder Paste Inspection (SPI). Kuongorora kweSPI inzira yakakosha yekudzora mhando muSMT iyo inobatsira kuchengetedza yakakwira mwero mukugadzira zvemagetsi. Muchikamu chino, tichaongorora zvakadzama nezveSPI kuongorora, kukosha kwayo, nzira, uye maitiro ayo pahutano hwese hwemagungano emagetsi.
Chii chinonzi SPI kuongorora?
Solder Paste Inspection (SPI) inoreva maitiro ekuongorora mashandisirwo eiyo solder paste pane yakadhindwa redunhu board (PCB) isati yaiswa zvinhu zvemagetsi. Solder paste musanganiswa we solder flux uye solder powder iyo inoshandiswa kugadzira majoini ekutengesa pakati pezvigadzirwa zvemagetsi nePCB. Iko kushandiswa kweiyo solder paste kwakakosha nekuti inokanganisa kuvimbika uye kuita kwechigadzirwa chekupedzisira. SPI inova nechokwadi chekuti solder paste inoshandiswa nemazvo, muhuwandu hwakakodzera, uye munzvimbo dzakakodzera, kuderedza mukana wekukanganisa mugungano rekupedzisira.
Sei uchishandisa SPI kuongorora mukugadzira zvemagetsi?
1.Kudzivirira Kukanganisa: SPI inobata basa rinokosha mukudzivirira kukanganisa kwakajairika senge solder mabhiriji, kusakwana solder, uye kusaruramisa kwezvikamu. Nekuona nyaya idzi pakutanga kwekugadzira, SPI inobatsira kudzivirira inodhura rework uye kugadzirisa.
2.Improved Kuvimbika: Yakakodzera solder paste application yakakosha pakugadzira yakavimbika solder majoini anogona kutsungirira mechanical stress uye thermal cycles. SPI inova nechokwadi chekuti solder paste inoshandiswa zvakafanana uye nenzira kwayo, zvichiita kuti iwedzere kuvimbika uye hupenyu hurefu hwechigadzirwa chemagetsi.
3.Cost Efficiency: Kuona uye kugadzirisa solder paste application issues pamatanho ekutanga ekugadzirwa kunonyanya kudhura kupfuura kugadzirisa matambudziko mushure mokunge zvikamu zvaiswa kana kutengeswa. SPI inobatsira mukudzikisira kugadzirwa nguva uye kuderedza kutambisa zvinhu.
4.Compliance neMitemo: Mazhinji maindasitiri anoda kuomerera kune chaiwo maitiro emhando uye mirau. SPI inobatsira vagadziri kuzadzisa zviyero izvi nekuona kuti solder paste application inosangana nezvinodiwa.
Ndedzipi nzira dzekuongorora dzeSPI?
SPI inogona kuitwa uchishandisa nzira dzakasiyana-siyana, imwe neimwe iine seti yayo yezvakanakira uye mashandisiro. Nzira dzekutanga dzinosanganisira:
1.Automated Optical Inspection (AOI): Iyi ndiyo yakajairika SPI nzira, inoshandisa yakakwirira-resolution makamera uye mifananidzo yekugadzirisa algorithms yekuongorora solder paste application. Masisitimu eAOI anogona kuona zvisizvo senge yakawandisa kana kusakwana solder paste, kusarongeka, uye bhiriji. Aya masisitimu anoshanda zvakanyanya uye anogona kugadzirisa huwandu hukuru hwePCB nekukurumidza.
2.X-ray Kuongorora: X-ray yekuongorora inoshandiswa kuona nyaya dzisingaonekwe neziso rakashama kana kuburikidza neyakajairwa optical nzira. Inonyanya kubatsira pakuongorora zvimiro zvemukati zve-multi-layer PCBs uye kuona nyaya dzakavanzwa solder mabhiriji kana voids.
3.Manual Inspection: Kunyange zvazvo isingawaniki mukugadzirwa kwepamusoro-soro, kuongorora kwebhuku kunogona kushandiswa mukugadzirwa kwediki-diki kana senzira yekuwedzera. Vatariri vakadzidziswa vanoongorora nemeso pe solder paste application uye vanoshandisa maturusi akadai sekukudza magirazi kuti vaone hurema.
4.Laser Inspection: Laser-based SPI systems inoshandisa lasers kuyera kureba uye vhoriyamu ye solder paste deposits. Iyi nzira inopa zviyero chaizvo uye inoshanda pakuona nyaya dzine chekuita nekunamira vhoriyamu uye kufanana.
Ndeapi maparamita akakosha muSPI Inspection?
Maparamita akati wandei anoongororwa panguva yekuongorora kweSPI kuti ive nechokwadi chekushandisa solder paste. Aya ma parameter anosanganisira:
1.Solder Paste Volume: Nhamba ye solder paste yakaiswa pane imwe neimwe pad inofanira kunge iri mukati memiganhu yakatarwa. Yakawandisa kana yakawandisa paste inogona kutungamirira kune kukanganisa mumajoini ekutengesa.
2.Paste Thickness: Kuwanda kweiyo solder paste layer kunofanirwa kuenderana kuti kuve nechokwadi chekunyorova kwakakodzera uye kunamatira kwezvikamu. Kusiyana kwepaste ukobvu kunogona kukanganisa solder joint quality.
3.Alignment: Iyo solder paste inofanira kunyatsoenderana nePCB pads. Misalignment inogona kukonzera kushomeka kwemajoini ekuumbwa uye zvinogona kuita chikamu chekuisa nyaya.
4.Paste Distribution: Uniform kugovera solder paste mhiri kwePCB kunokosha pakuenderana nekutengesa. SPI masisitimu anoongorora kuenzana kwekugovera paste kudzivirira nyaya senge solder voids kana bhiriji.
Nzira yekuvimbisa sei Solder Paste Kudhinda Hunhu?
● Squeegee Speed: Kumhanya kwekufamba kwekusvinwa kunotarisisa kuti inguva yakawanda sei iripo yekuti solder paste "ikunguruke" mumaapertures e stencil uye pamapadhi ePCB. Kazhinji, kuiswa kwe 25mm pasekondi kunoshandiswa asi izvi zvinoshanduka zvichienderana nehukuru hwezvivharo mukati me stencil uye solder paste inoshandiswa.
● Squeegee Pressure: Munguva yekudhinda kutenderera, zvakakosha kuisa kumanikidza kwakakwana mukati mehurefu hwese hwekusvina blade kuti uve nechokwadi chekupukuta kwakachena kwe stencil. Kunyanya kudzvanya kunogona kukonzera "kuzora" kwenamira pane stencil, isina kunaka kuisa, uye kusakwana kuendeswa kuPCB. Kunyanya kudzvinyirirwa kunogona kukonzera "kuchera" kwepaste kubva kune makuru apertures, kunyanya kupfeka pane stencil uye squeegees, uye zvinogona kukonzera "kubuda ropa" kwepaste pakati pe stencil nePCB. Iyo yakajairwa yekumisikidza ye squeegee pressure ndeye 500 magiramu ekumanikidza pa 25mm ye squeegee blade.
● Dzvinya kona: The angle of the squeegee inowanzogadzirirwa 60 ° nevanobata ivo vanogadziriswa. Kana kona yacho yakawedzera inogona kukonzera "kuchera" kwechibatiso paste kubva kune stencil apertures uye saka shoma solder paste kuiswa. Kana kona ikaderedzwa, inogona kuita kuti chisara che solder paste chisiiwe pane stencil mushure mekunge kusvinwa kwapedza kudhinda.
● Stencil Separation Speed: Iyi ndiyo kukurumidza iyo PCB inoparadzanisa kubva kune stencil mushure mekudhinda. Kugadziriswa kwekumhanya kweanosvika 3mm pasekondi kunofanirwa kushandiswa uye kunotongwa nehukuru hwemaapertures mukati me stencil. Kana izvi zvichinyanya kukurumidza, zvichaita kuti solder paste isasununguka zvakakwana kubva kune apertures uye kuumbwa kwepamusoro pemicheto yakakomberedza madhipoziti, anozivikanwawo se "imbwa-nzeve".
● Stencil Kuchenesa: Iyo stencil inofanirwa kucheneswa nguva nenguva panguva yekushandisa iyo inogona kuitwa nemaoko kana otomatiki. Iyo otomatiki yekudhinda muchina ine hurongwa hunogona kusetwa kuti uchenese stencil mushure meiyo yakatarwa nhamba yeprints uchishandisa lint-isina zvinhu zvinoshandiswa nekemikari yekuchenesa senge Isopropyl Alcohol (IPA). Iyo sisitimu inoita mabasa maviri, yekutanga kucheneswa kwepasi peiyo stencil kumisa kuputika, uye yechipiri ndeyekucheneswa kwemaapertures uchishandisa vacuum kumisa blockages.
● Stencil uye Squeegee Condition: Zvose stencils uye squeegees dzinoda kunyatsochengetwa uye kuchengetedzwa sezvo chero kukuvara kwemagetsi kune chero kunogona kutungamirira kumigumisiro isingadikanwi. Ose ari maviri anofanirwa kutariswa asati ashandiswa uye kunyatsocheneswa mushure mekushandisa, zvakanaka kushandisa otomatiki yekuchenesa sisitimu kuitira kuti chero solder paste inosara ibviswe. Kana chero kukuvara kwakaonekwa kune squeegee kana stencils, inofanirwa kutsiviwa kuti ive yakavimbika uye inodzokororwa maitiro.
● Dhinda Stroke: Iri ndiro nhambwe inofambiswa ne squeegee ichiyambuka stencil uye inokurudzirwa kuti ive shoma ye20mm kupfuura iyo yakanyanyisa aperture. Chinhambwe chapfuura pakavhurika chakanyanya kukosha kubvumira nzvimbo yakakwana kuti namira ikunguruke painodzoka sitiroko sezvo iri kukunguruka ye solder namatidza bead iyo inoburitsa simba rinodzika pasi rinodhiraivha namira mumaburi.
Ndedzipi Mhando dzePCB Inogona Kudhindwa?
Zvisineirigid,IMS,rigid-flexkanaflex PCB(tarisa kune yeduPCB Manufacturing), kana simba rePCB risingakwanisi kutsigira PCB pachayo seyakazara furati sezvinodiwa pamarairi emitsara yeSMT, mugadziri wePCB anokumbira kugadzirisa.SMT mutakurikana mutakuri (akagadzirwa neDurostone).
Ichi chinhu chakakosha kuona kuti PCB inobatwa yakafuratira ichipesana ne stencil panguva yekudhinda. Kana iyo PCB, zvisinei nekuomarara, IMS, kuomarara-kuchinjika kana kuchinjika, isina kutsigirwa zvizere, inogona kutungamirira kune kudhinda kuremara, seyakashata paste dhipoziti uye smudging. PCB tsigiro dzinowanzo kupihwa nemichina yekuprinda iyo iri kureba yakatarwa uye ine zvinzvimbo zvinogoneka kuti ive nechokwadi chekuenderana. Kune zvakare inochinjika PCB uye inobatsira kuungana-mativi maviri.
Printed Solder Paste Inspection (SPI)
Iyo solder paste kudhinda maitiro ndechimwe chezvakakosha zvikamu zvepamusoro Mount assembly process. Iyo yekutanga kukanganisa kunoonekwa zvishoma iyo inodhura kugadzirisa - mutemo unobatsira kufunga ndewekuti chikanganiso chakaonekwa mushure mekudzokorora chinodhura kakapetwa ka10 huwandu hwekugadzirisa zvakare pane hwakaonekwa isati yadzokororwa - kukanganisa kwakatarwa mushure mekuedzwa kunodhura imwe gumi. nguva zhinji kuti rework. Zvinonzwisiswa kuti solder paste kudhinda nzira inopa mikana yakawanda yekuremara kupfuura chero yeumwe munhu.Surface Mount Technology (SMT) Manufacturing Matanho. Mukuwedzera, kuchinja kune lead-isina solder paste uye kushandiswa kwezvikamu zviduku, kwakawedzera kuoma kwekudhinda. Zvave zvichiratidzwa kuti lead-isina solder pastes haiparadziri kana "kunyorova" pamwe chete netin lead solder pastes. Kazhinji, imwe nzira yekudhinda yakanyatsonaka inodiwa mukutungamirira-isina maitiro. Izvi zvasundidzira mugadziri kuti aite imwe mhando yekuongorora-kudhinda. Kuti uone maitiro, otomatiki solder paste yekuongorora inogona kushandiswa kunyatso tarisa solder paste deposits. PaRICHFULLJOY, tinogona kuona kumwe kukanganiswa kweakadhindwa solder paste, mitsara isina kukwana madhipoziti, yakawandisa dhipoziti, deformation yechimiro, chisipo paste, paste offset, kuzora, bhiriji nezvimwe.