SMT (Pamusoro peGomo Tekinoroji) processing ndiyo nzira yakakosha mukugadzira michina yemagetsi. Kune vashandi vekutenga vatsva kune iyi ndima, kunzwisisa mafambiro emusangano weSMT kwakakosha. Ichi chinyorwa chinotsanangura nhanho huru muSMT kugadzirisa kuti ikubatsire nekukurumidza kubata zvakakosha zveiyi tekinoroji.
Basic Concept yeSMT Processing
Kugadziriswa kweSMT kunosanganisira kumisa zvakananga zvinhu zvemagetsi pamusoro peakadhindwa edunhu mabhodhi (PCBs) uye kuatengesa uchishandisa nzira dzakadai sereflow soldering kana wave soldering. Kuenzaniswa neyechinyakare kuburikidza-gomba tekinoroji, SMT inopa mabhenefiti senge yakakwira gungano density, diki saizi, kureruka huremu, kuvimbika kukuru, uye nepamusoro kugadzirwa kwehunyanzvi, zvichiita kuti ishandiswe zvakanyanya mukugadzira zvemazuva ano zvemagetsi.
Iyo SMT yekugadzirisa basa rekufambisa rinonyanya kusanganisira anotevera matanho:
PCB Dhizaini uye Kugadzirwa
Nhanho yekutanga muSMT kugadzirisa ndeye kugadzira uye kugadzira PCB inoenderana nezvinodiwa. PCB dhizaini inofanirwa kufunga nezve chikamu dhizaini, routing, uye soldering process zvinodiwa. Kana yangogadzirwa, yakasarudzika PCB yekugadzira michina inogadzira iyo PCB substrate inosangana neSMT yekugadzirisa zviyero.
Kushambadzira (wonderfulchip.com)
Chikamu Kutenga uye Kuongorora
asati SMT kugadzirisa, izvo zvinodiwa zvemagetsi zvinofanirwa kutengwa uye kuongororwa zvakasimba. Iyi nhanho inova nechokwadi chekuti chikamu chemhando inosangana nezviyero zvekugadzira, kudzivirira nyaya mukugadzirisa kunotevera. Ongororo inovhara kushanda kwemagetsi, kutaridzika, uye hukuru.
Kushandiswa kweSolder Paste / Adhesive
Kuti uwedzere kunamatira kwechikamu paPCB, dhizaini ye solder paste kana anamira inogona kuiswa. Iyi nhanho inobatsira kuchengetedza zvikamu munzvimbo, kudzivirira kufamba kana dhizaini panguva yekumwe kugadzirisa.
Sarudza uye Nzvimbo Yezvikamu
Muchina wekutora-uye-nzvimbo ndeimwe yemidziyo yakakosha muSMT kugadzirisa. Iyo inotora zvikamu kubva kune vanodyisa uye nekunyatsoiisa paPCB zvinoenderana neyakagadzikwa marongero. Munguva iyi, muchina unoshandisa yakakwirira-chaiyo chinzvimbo uye maonesheni ekuziva masisitimu kuti ave nechokwadi chekuiswa.
Reflow Soldering
Mushure mekuiswa, iyo yakaunganidzwa PCB (PCBA) inotumirwa kune reflow ovheni yesolder. Ovheni inonyatso kudzora tembiricha uye kuyerera kwemhepo kunyungudutsa solder paste, kuve nechokwadi chekunyorova kwechikamu chinotungamira uye PCB pads, ichigadzira yakavimbika solder yekubatanidza. Iyi nhanho yakakosha, inokanganisa zvakananga soldering mhando.
Kuchenesa uye Kuongorora
Kana soldering yapera, PCBA inofanira kucheneswa kubvisa zvakasara solder paste uye flux. Mushure mekuchenesa, kunyatsoongorora kunoitwa, kusanganisira kutarisa kwekuona, kuyedza kuita kwemagetsi, uye kuongororwa kwekuvimbika, kuona kuti mhando yechigadzirwa inosangana nezviyero.
Kugadzirisa uye Packaging
Zvigadzirwa zvakaonekwa sezvisina kunaka panguva yekuongorora zvinoda kugadziriswa. Mushure mekugadzirisa kwapera, imwe denderedzwa yekuongorora inovimbisa kunaka. Chekupedzisira, zvigadzirwa zvine hunyanzvi zvinoiswa mukati mekutengesa kunotevera uye kutumira.
Mafungiro eSMT Processing
Paunenge uchiitisa SMT kugadzirisa, zvinotevera zvinhu zvinofanirwa kutariswa:
Tembiricha uye Humidity Kudzora: SMT kugadzirisa kunoda chaiwo mamiriro ekunze. Kazhinji, tembiricha dzinofanirwa kuchengetedzwa dziri pakati pe22-28°C, uye hunyoro hunofanira kuchengetwa huri pa45% -70% RH kuti tive nechokwadi chekugadzikana uye kunaka kwechigadzirwa.
Static Electricity Precautions: Zvinhu zvemagetsi zvinonzwa nemagetsi akamira, saka matanho akasimba eESD (electrostatic discharge) anofanirwa kuitwa, sekupfeka zvipfeko zvinopikisa uye kushandisa anti-static workstations.
Component Storage: Mamiriro ekuchengetedza ezvikamu anokanganisawo kunaka kwechigadzirwa. Zvikamu zvinofanirwa kuchengetwa munzvimbo yakaoma, ine mhepo inofefetera isina magasi anoparadza kudzivirira kunyura kana kuti oxidation.
Equipment Maintenance: SMT yekugadzira michina senge pick-ne-nzvimbo michina uye reflow oveni zvinoda kugadziriswa nguva dzose kuti ive nechokwadi, kugadzikana, uye kurebesa hupenyu.
SMT kugadzirisa chinhu chakaoma uye chakanyatso hunyanzvi chinosanganisira akawanda matanho uye akasiyana maturusi. Kune vanotanga, kunzwisisa uye kugona tekinoroji mafambiro ekushanda kwakakosha. Kuburikidza nechinyorwa ichi, vaverengi vanofanirwa kunge vakawana nzwisiso yakazara ye SMT kugadzirisa matanho. Kuenderera mberi nekudzidza uye ruzivo runoshanda rwakakosha pakuvandudza SMT kugadzirisa kunaka uye kushanda nesimba.
