SMT (Surface Mount Technology) thiab SMD (Surface Mount Device) yog ob nqe lus uas feem ntau siv hauv kev tsim hluav taws xob. Lawv xa mus rau cov txheej txheem thiab cov khoom, feem, ntawm ib txoj kev tshiab ntawm kev sib sau cov hluav taws xob circuits. Hauv kab lus no, peb yuav tshawb xyuas seb SMT thiab SMD txhais li cas thiab siv lawv li cas.
SMT yog ib txoj hauv kev siv hluav taws xob sib dhos uas suav nrog cov khoom siv hluav taws xob ncaj qha mus rau saum npoo ntawm lub rooj tsav xwm luam tawm (PCB). Nws hloov cov thev naus laus zis dhau los ntawm qhov chaw uas cov khoom tau muab tso rau hauv qhov drilled los ntawm PCB. Hauv SMT, cov khoom yog thawj zaug muab tso rau hauv lub rooj tsavxwm uas tau coated nrog ib txheej ntawm cov tshuaj txhuam hniav. Tom qab ntawd lub rooj tsavxwm yog rhuab, ua rau muab tshuaj txhuam kom yaj thiab cov khoom sib txuas rau lub rooj tsavxwm. Cov txheej txheem no sai dua, meej dua thiab ua rau me me thiab ntau compact circuits.
SMD, ntawm qhov tod tes, yog hais txog tus kheej cov khoom uas siv hauv SMT. SMD Cheebtsam yog me me thiab muaj lub tiaj tus, nyias cov hlau lead uas tuaj yeem raug soldered ncaj qha mus rau saum npoo ntawm PCB. Tsis zoo li cov khoom siv los ntawm lub qhov, lawv tsis tas yuav tsum tau qhov drilled rau hauv PCB, uas ua rau cov khoom siv SMD yooj yim dua thiab nrawm dua. Qee qhov piv txwv ntawm SMD cov khoom muaj xws li resistors, capacitors, thiab transistors.
Muaj ntau qhov zoo rau kev siv SMT thiab SMD hla dhau-qhov tshuab. Ua ntej, SMT thiab SMD Cheebtsam yog me dua thiab ntau compact, uas tso cai rau ntau dua miniaturization ntawm cov khoom siv hluav taws xob. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov khoom siv xws li smartphones thiab wearables uas qhov chaw txwv. Qhov thib ob, SMT thiab SMD Cheebtsam yog yooj yim dua thiab nrawm dua los sib sau ua ke, uas txo cov nqi tsim khoom thiab ua kom cov khoom ua tau zoo. Thaum kawg, SMT thiab SMD Cheebtsam muab hluav taws xob ua tau zoo dua vim tias lawv muaj cov hlau lead luv luv thiab cov kab mob me me.
Txawm li cas los xij, kuj muaj qee qhov tsis zoo rau kev siv SMT thiab SMD. Piv txwv li, SMD Cheebtsam tuaj yeem nyuaj dua los kho lossis hloov dua li cov khoom siv hauv lub qhov txij li lawv tau soldered ncaj qha rau ntawm lub rooj tsavxwm. Tsis tas li ntawd, SMT thiab SMD Cheebtsam muaj qhov cuam tshuam ntau dua rau kev puas tsuaj los ntawm hluav taws xob zoo li qub thiab kev co dua li cov khoom hauv lub qhov.
Hauv kev xaus, SMT thiab SMD tau hloov pauv txoj kev sib txuas hauv hluav taws xob, ua rau cov khoom me me, muaj txiaj ntsig zoo, thiab cov khoom siv tau zoo dua. Txawm hais tias muaj qee qhov tsis zoo rau kev siv cov thev naus laus zis no, cov txiaj ntsig feem ntau tshaj qhov tsis zoo. SMT thiab SMD paub tseeb tias yuav txuas ntxiv yog qhov tseem ceeb hauv ntiaj teb kev siv hluav taws xob.
