KUYINI UKUPHUMA KWEBHOLA LASODELA?

Ibhola le-solder lingenye yeziphambeko ezivame kakhulu zokugeleza kabusha ezitholakala lapho kusetshenziswa ubuchwepheshe bokukhweza phezulu ebhodini lesekethe eliphrintiwe. Ngokuvumelana negama lawo, ayibhola le-solder elihlukanisiwe nomzimba oyinhloko elakha izingxenye zokukhweza ezihlangene ebhodini.

Amabhola e-solder ayizinto zokuqhuba, okusho ukuthi uma ejikeleza ebhodini lesifunda eliphrintiwe, angabangela ama-shorts kagesi, athinte kabi ukuthembeka kwebhodi lesifunda eliphrintiwe.

Ngokusho kweIPC-A-610, i-PCB enamabhola e-solder angaphezu kuka-5 (<=0.13mm) phakathi kuka-600mm² ayinasici, njengoba ububanzi obungaphezu kuka-0.13mm buphula isimiso esincane sokugunyazwa kukagesi. Kodwa-ke, noma le mithetho ithi amabhola e-solder angashiywa eqinile uma enamathele ngokuphephile, ayikho indlela yangempela yokwazi ngokuqinisekile ukuthi akhona.

UNGAWALUNGISA KANJANI AMABHOLA AMASOLI NGAPHAMBI KWENZEKE

Amabhola e-solder angabangelwa izici ezihlukahlukene, okwenza ukuxilongwa kwenkinga kube inselele ngandlela-thile. Kwezinye izimo, zingaba ngokungahleliwe ngokuphelele. Nazi izizathu ezimbalwa ezivamile ifomu solder amabhola inqubo PCB inhlangano.

Umswakama-Umswakamaisiphenduke enye yezinkinga ezinkulu kakhulu kubakhiqizi bebhodi lesifunda ephrintiwe namuhla. Ngaphandle komphumela we-popcorn kanye nokuqhekeka kwe-microscopic, kungabangela futhi amabhola e-solder ukuthi akhe ngenxa yokuphunyuka komoya noma amanzi. Qinisekisa ukuthi amabhodi esekethe aphrintiwe omiswa kahle ngaphambi kokusetshenziswa kwe-solder, noma wenze izinguquko zokulawula umswakama endaweni yokukhiqiza.

I-Solder Namathisela- Izinkinga ku-solder unama ngokwayo zingaba nomthelela ekwakhiweni kwebhola le-solder. Ngakho-ke, akukhuthazwa ukuthi uphinde usebenzise unamathisele we-solder noma uvumele ukusetshenziswa kokunamathisela kwe-solder kudlule usuku lokuphelelwa yisikhathi. I-solder paste kufanele futhi igcinwe ngendlela efanele futhi isingathwe ngokweziqondiso zomkhiqizi. Unamathisele we-solder oncibilikayo wamanzi nawo ungaba nomthelela kumswakama oweqile.

I-Stencil Design- I-solder balling ingenzeka lapho i-stencil ihlanzwe ngendlela engafanele, noma lapho i-stencil ingaphrintiwe kahle. Ngakho, ukwethemba iabanolwazi lokwenziwa kwebhodi lesifunda eliphrintiwekanye nendlu yomhlangano ingakusiza ugweme la maphutha.

Iphrofayili Yezinga Lokushisa Kabusha- I-solvent eguqukayo idinga ukuhwamuka ngenani elifanele. Ai-ramp-up ephezulunoma izinga lokushisa langaphambi kokushisa lingaholela ekwakhekeni kwebhola le-solder. Ukuze uxazulule lokhu, qiniseka ukuthi irempu yakho ingaphansi kuka-1.5°C/sec ukusuka ezingeni lokushisa elivamile legumbi ukuya ku-150°C.

UKUSUSWA KWEBHOLA LOKUSOLA

Fafaza ezinhlelweni zomoyakuyindlela engcono kakhulu yokususa ukungcola kwebhola le-solder. Le mishini isebenzisa imibhobho yomoya enengcindezi ephezulu esusa amabhola e-solder ebusweni bebhodi lesifunda eliphrintiwe ngenxa yokucindezela kwawo okuphezulu.

Nokho, lolu hlobo lokususwa alusebenzi uma umsuka usukela kuma-PCB angaphrintiwe kahle kanye nezindaba zokunamathisela i-solder pre-reflow.

Ngenxa yalokho, kungcono ukuxilonga imbangela yamabhola e-solder kusenesikhathi, njengoba lezi zinqubo zingathonya kabi ukukhiqizwa nokukhiqizwa kwe-PCB yakho. Ukuvimbela kunikeza imiphumela engcono kakhulu.

YEQA AMAPHUPHA NGE-IMAGINEERING INC

Kwa-Imagineering, siyaqonda ukuthi ukuzizwisa kuyindlela engcono kakhulu yokugwema ukuhixa okuhambisana nokwakhiwa nokuhlanganiswa kwe-PCB. Sinikeza ikhwalithi engcono kakhulu esesigabeni ethenjwayo ezinhlelweni zezempi nezasemoyeni, futhi sinikeza ushintsho olusheshayo ku-prototyping nokukhiqiza.

Ingabe usukulungele ukubona umehluko we-Imagineering?Xhumana nathi namuhlaukuze uthole isaphulelo ekukhiqizeni kwethu i-PCB nezinqubo zokuhlanganisa.