Zatsopano Zamagetsi Zamagetsi EP2AGX65DF25C6G 5CGXFC7D7F27C8N 5AGXFA5H6F35C6N EPF10K40RC240-4 Ic Chip

Makhalidwe a Zamalonda

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Zachilengedwe & Zogulitsa kunja

Kodi SMT ndi chiyani?

Zamagetsi zambiri zamalonda ndizokhudza ma circuitry ovuta kulowa m'malo ang'onoang'ono.Kuti izi zitheke, zigawozi ziyenera kuyikidwa mwachindunji pa bolodi la dera osati mawaya.Izi ndizomwe teknoloji yokwera pamwamba ili.

Kodi Surface Mount Technology ndiyofunikira?

Zamagetsi zambiri zamakono zimapangidwa ndi SMT, kapena ukadaulo wapamtunda.Zipangizo ndi zinthu zomwe zimagwiritsa ntchito SMT zimakhala ndi maubwino ambiri kuposa mabwalo omwe amayendetsedwa kale;zipangizo zimenezi zimadziwika kuti SMDs, kapena pamwamba phiri zipangizo.Ubwinowu watsimikizira kuti SMT yalamulira dziko la PCB kuyambira pomwe idakhazikitsidwa.

Ubwino wa SMT

• Ubwino waukulu wa SMT ndikuloleza kupanga ndi kuwotcha.Izi ndizotsika mtengo komanso zopulumutsa nthawi komanso zimalola kuti pakhale dera lokhazikika.Kusungirako ndalama zopangira zinthu nthawi zambiri kumaperekedwa kwa kasitomala - kuzipangitsa kukhala zopindulitsa kwa aliyense.
• Mabowo ochepera amafunikira kubowola pama board ozungulira
• Mtengo wake ndi wotsika kuposa magawo ofanana ndi bowo
• Mbali iliyonse ya bolodi yozungulira ikhoza kukhala ndi zigawo zake
• Zida za SMT ndizochepa kwambiri
• Kachulukidwe kagawo kakang'ono
• Kuchita bwino pansi pa kugwedezeka ndi kugwedezeka.

Zoyipa za SMT

• Ziwalo zazikulu kapena zamphamvu kwambiri ndizosayenera pokhapokha pomanga pobowo akugwiritsidwa ntchito.
• Kukonza pamanja kungakhale kovuta kwambiri chifukwa cha kuchepa kwambiri kwa zigawo.
• SMT ikhoza kukhala yosayenera pazigawo zomwe zimalandira kulumikizidwa pafupipafupi ndikudula.

Kodi zida za SMT ndi chiyani?

Zida zokwera pamwamba kapena ma SMD ndi zida zomwe zimagwiritsa ntchito ukadaulo wapamwamba kwambiri.Zigawo zosiyanasiyana zomwe zimagwiritsidwa ntchito zimapangidwira kuti zigulitsidwe mwachindunji ku bolodi m'malo momangirira mawaya pakati pa mfundo ziwiri, monga momwe zimakhalira ndi luso lamakono.Pali magulu atatu akuluakulu a zigawo za SMT.

Ma SMD osavuta

Ambiri mwa ma SMD omwe amangokhala ndi ma resistors kapena capacitors.Makulidwe a phukusi la izi ndi okhazikika bwino, zigawo zina kuphatikiza ma coils, makhiristo ndi zina zimakhala ndi zofunikira zenizeni.

Maulendo ophatikizika

Zazambiri za mabwalo ophatikizika ambiri, werengani blog yathu.Mogwirizana ndi SMD makamaka, amatha kusiyanasiyana kutengera kulumikizana komwe kumafunikira.

Transistors ndi diode

Transistors ndi ma diode nthawi zambiri amapezeka mu phukusi la pulasitiki laling'ono.Zotsogolera zimapanga maulumikizano ndikukhudza bolodi.Mapaketi awa amagwiritsa ntchito njira zitatu.

Mbiri yachidule ya SMT

Ukadaulo wa Surface Mount unayamba kugwiritsidwa ntchito kwambiri m'ma 1980, ndipo kutchuka kwake kwangokulirakulira kuchokera pamenepo.Opanga PCB anazindikira mwamsanga kuti zipangizo za SMT zinali zopambana kwambiri kupanga kusiyana ndi njira zomwe zilipo kale.SMT imalola kuti kupanga kukhale kwamakina ambiri.M'mbuyomu, ma PCB adagwiritsa ntchito mawaya kulumikiza zida zawo.Mawayawa ankayendetsedwa ndi manja pogwiritsa ntchito njira yodutsa pobowo.Mabowo omwe anali pamwamba pa bolodi anali ndi mawaya odutsamo, ndipo izi, nazonso, zimagwirizanitsa zigawo zamagetsi.Ma PCB achikhalidwe amafunikira anthu kuti athandizire kupanga izi.SMT idachotsa gawo lovutali pantchitoyi.Zida m'malo mwake zidagulitsidwa pamapadi pamatabwa m'malo mwake - chifukwa chake 'kukweza pamwamba'.

SMT ikugwira ntchito

Momwe SMT idadzipangira makina amatanthawuza kuti kugwiritsidwa ntchito kufalikira mwachangu m'makampani onse.Zigawo zatsopano zatsopano zidapangidwa kuti zizitsagana ndi izi.Izi nthawi zambiri zimakhala zazing'ono kuposa zomwe zimadutsa m'mabowo.Ma SMD adatha kukhala ndi ma pini apamwamba kwambiri.Nthawi zambiri, ma SMTs nawonso amakhala ophatikizika kwambiri kuposa ma board ozungulira mabowo, zomwe zimapangitsa kuti pakhale ndalama zotsika.Ponseponse, zidazi ndizosavuta komanso zotsika mtengo.Amatha kupita patsogolo kwaukadaulo komwe sikukadatha kuganiza pogwiritsa ntchito dzenje.

Ikugwiritsidwa ntchito mu 2017

Msonkhano wa Surface Mount uli pafupifupi ulamuliro wonse pakupanga PCB.Sikuti ndizongopanga zokhazokha, komanso zazing'ono zonyamula, koma zida zazing'onozi zimagwiranso ntchito kwambiri.Ndizosavuta kuwona chifukwa chake kupanga kwa PCB kwasuntha kuchokera panjira yamawaya kudzera pamabowo.