PCBA kugadzira maitiro anosanganisira PCB bhodhi kugadzira, chikamu chekutenga uye kuongorora, chip processing, plug-in kugadzirisa, chirongwa chekupisa-mukati, kuyedza, kuchembera uye nhevedzano yemaitiro, kugovera uye kugadzira cheni kwakareba, chero kukanganisa mune imwe link kuchakonzeresa. nhamba huru yePCBA board yakaipa, zvichikonzera migumisiro yakakomba.Nekudaro, zvinonyanya kukosha kudzora iyo yese PCBA yekugadzira maitiro.Ichi chinyorwa chinotarisa pane zvinotevera zvekuongorora.
1. PCB bhodhi kugadzira
Yakagamuchira PCBA mirairo yakaitwa pre-kugadzirwa musangano inonyanya kukosha, kunyanya kune PCB Gerber faira yekuongorora hurongwa, uye yakananga kune vatengi kuti vape mishumo yekugadzira manufacturability, mafekitari madiki mazhinji haatarise pane izvi, asi kazhinji anotarisana nematambudziko ehutano anokonzerwa nePCB murombo. dhizaini, zvichiita kuti pave nenhamba yakawanda yebasa rekugadzirisa uye kugadzirisa.Kugadzira hakuna mutsauko, unofanirwa kufunga kaviri usati waita uye kuita basa rakanaka pamberi.Somuenzaniso, kana achiongorora PCB mafaira, nokuti vamwe diki uye kutadza kukundikana zvinhu, iva nechokwadi kuti kudzivisa yakakwirira zvinhu mugadziriro marongerwo, kuti rework simbi musoro nyore kushanda;PCB gomba spacing uye bhodhi rekutakura mutoro-ukama, usakonzerese kukotama kana kutyoka;wiring kana kufunga kupindira kwechiratidzo chepamusoro-frequency, impedance uye zvimwe zvinhu zvakakosha.
2. Chikamu chekutenga nekuongorora
Kutenga kwechikamu kunoda kudzora kwakasimba kwechiteshi, kunofanirwa kubva kune vatengesi vakuru uye yekutanga fekitori pickup, 100% kudzivirira zvechipiri-ruoko zvinhu uye zvemanyepo.Pamusoro pezvo, gadzira nzvimbo dzakakosha dzinopinda dzekuongorora zvinhu, kuongorora kwakasimba kwezvinhu zvinotevera kuona kuti zvikamu zvacho hazvina mhosva.
PCB:reflow ovenkuyedza tembiricha, kurambidza mitsara inobhururuka, ingave gomba rakavharika kana kudonha inki, ingave bhodhi rakakotama, nezvimwe.
IC: tarisa kuti silkscreen neBOM zvakangofanana here, uye gara uchichengetedza tembiricha uye humidity.
Zvimwe zvinhu zvakajairika: tarisa silkscreen, chitarisiko, simba kuyerwa kukosha, nezvimwe.
Kuongorora zvinhu zvinoenderana nesampling nzira, chikamu che1-3% mune zvese
3. Patch processing
Solder paste kudhinda uye reflow oven tembiricha kudzora ndiyo yakakosha poindi, inoda kushandisa yakanaka mhando uye kusangana nemaitiro zvinodiwa laser stencil yakakosha.Maererano nezvinodiwa zvePCB, chikamu chekuda kuwedzera kana kuderedza gomba restencil, kana kushandiswa kwemakomba akafanana neU, maererano nezvinodiwa zvekugadzira stencils.Reflow soldering oven tembiricha uye kumhanya kudzora kwakakosha kune solder paste kupinza uye kuvimbika solder, zvinoenderana neyakajairwa SOP inoshanda nhungamiro yekutonga.Mukuwedzera, kudiwa kwakasimba kushandiswa kweSMT AOI muchinaongororo yekudzikisa huwandu hwevanhu hunokonzerwa nezvakaipa.
4. Insertion processing
Plug-in process, ye over-wave soldering mold dhizaini ndiyo yakakosha poindi.Maitiro ekushandisa mold anogona kuwedzera mukana wekupa zvigadzirwa zvakanaka mushure mechoto, inova iyo mainjiniya ePE anofanira kuramba achidzidzira uye neruzivo mukuita.
5. Chirongwa kupfura
Mumushumo wekutanga weDFM, unogona kukurudzira mutengi kuti aise mamwe mapoinzi ebvunzo (Test Points) paPCB, chinangwa ndechekuedza PCB uye PCBA wedunhu conductivity mushure mekutengesa zvese zvikamu.Kana pane mamiriro ezvinhu, unogona kukumbira mutengi kuti ape purogiramu uye apise purogiramu mukutonga kukuru IC kuburikidza nezvinopisa (zvakadai se ST-LINK, J-LINK, nezvimwewo), kuitira kuti iwe unogona kuedza kuchinja kwekushanda kwakaunzwa. nemaitiro akasiyana-siyana ekubata zvakanyanya intuitively, uye nekudaro edza kuvimbika kwePCBA yese.
6. PCBA board test
Kune maodha ane PCBA yekuyedza zvinodiwa, iyo huru yebvunzo yemukati ine ICT (Mune Circuit Test), FCT (Basa Bvunzo), Burn In Test (kuchembera bvunzo), tembiricha uye humidity bvunzo, yekudonha bvunzo, nezvimwe, kunyanya zvinoenderana nemutengi bvunzo. chirongwa chekushanda uye pfupiso mushumo data inogona kuva.
Nguva yekutumira: Mar-07-2022