Lub nti yog qhov peb hu ua IC, uas yog tsim los ntawm cov khoom siv lead ua thiab cov ntim khoom sab nraud, me me li lub transistor, thiab peb lub computer CPU yog qhov peb hu ua IC.Feem ntau, nws tau nruab rau ntawm PCB los ntawm cov pins (uas yog, Circuit Court board koj tau hais), uas tau muab faib ua cov ntim sib txawv, suav nrog cov ntsaws ncaj qha thiab thaj.Kuj tseem muaj cov uas tsis ncaj qha ntsia ntawm PCB, xws li peb lub computer CPU.Rau qhov yooj yim ntawm kev hloov, nws yog tsau rau ntawm nws los ntawm kev siv lub qhov (socket) los yog pins.Ib lub pob dub, xws li hauv lub tshuab hluav taws xob saib, raug kaw ncaj qha rau ntawm PCB.Piv txwv li, qee cov neeg nyiam ua haujlwm hauv hluav taws xob tsis muaj lub PCB tsim nyog, yog li nws tseem tuaj yeem tsim lub tsev ncaj qha los ntawm tus pin ya hlau.
Lub nti yog yuav tsum tau "nruab" ntawm lub rooj tsavxwm Circuit Court, los yog "soldering" kom meej.Lub nti yog yuav tsum tau soldered ntawm lub rooj tsavxwm Circuit Court, thiab lub rooj tsav xwm Circuit Court tsim cov hluav taws xob kev sib txuas ntawm cov nti thiab cov nti los ntawm "kawg".Lub rooj tsav xwm hauv Circuit Court yog tus nqa khoom ntawm cov khoom, uas tsis tsuas yog kho cov nti, tab sis kuj ua kom cov hluav taws xob sib txuas thiab ua kom muaj kev ruaj ntseg ntawm txhua lub nti.
chip pin
Cov nti muaj ntau tus pins, thiab cov nti kuj tsim kom muaj kev sib txuas hluav taws xob sib txuas nrog lwm cov chips, cov khoom siv, thiab circuits los ntawm cov pins.Lub zog ntau dua ib lub nti muaj, ntau tus pins nws muaj.Raws li cov ntawv sib txawv pinout, nws tuaj yeem muab faib ua LQFP series pob, QFN series pob, SOP series pob, BGA series pob thiab DIP series hauv-kab pob.Raws li qhia hauv qab no.
PCB pawg thawj coj saib
Cov kab hluav taws xob sib txuas feem ntau yog ntsuab oiled, hu ua PCB boards.Ntxiv rau cov xim ntsuab, feem ntau siv xim yog xiav, dub, liab, thiab lwm yam. Muaj cov ntaub qhwv, kab, thiab vias ntawm PCB.Cov txheej txheem ntawm cov ntaub qhwv yog zoo ib yam nrog cov ntim ntawm cov nti, thiab cov chips thiab cov ntaub qhwv tuaj yeem raug soldered sib xws los ntawm kev sib tsoo;thaum cov kab thiab vias muab kev sib raug zoo ntawm hluav taws xob.Lub rooj tsav xwm PCB tau pom hauv daim duab hauv qab no.
PCB boards tuaj yeem muab faib ua ob-txheej boards, plaub-txheej boards, rau-txheej boards, thiab txawm ntau txheej raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg.Feem ntau siv PCB boards feem ntau yog FR-4 cov ntaub ntawv, thiab cov tuab tuab yog 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm, thiab lwm yam. yog ib tug mos mos, hu ua ib tug yooj ywm Circuit Court board.Piv txwv li, cov cables hloov tau yooj yim xws li xov tooj ntawm tes thiab khoos phis tawj yog cov khoom siv hluav taws xob hloov tau yooj yim.
vuam cov cuab yeej
Yuav kom solder lub nti, ib tug soldering cuab tam yog siv.Yog hais tias nws yog phau ntawv soldering, koj yuav tsum tau siv hluav taws xob soldering hlau, solder hlau, flux thiab lwm yam cuab yeej.Kev tuav vuam yog tsim rau ib tug me me ntawm cov qauv, tab sis tsis haum rau huab hwm coj ntau lawm vuam, vim tsis tshua muaj efficiency, tsis zoo sib xws, thiab ntau yam teeb meem xws li ploj welding thiab cuav welding.Tam sim no cov qib ntawm kev siv tshuab tau nce siab dua thiab siab dua, thiab SMT chip tivthaiv vuam yog cov txheej txheem kev lag luam uas paub tab heev.Cov txheej txheem no yuav suav nrog cov tshuab txhuam hniav, cov tshuab tso rau, reflow ncu, AOI kuaj thiab lwm yam khoom siv, thiab qib ntawm automation siab heev., Qhov sib xws yog qhov zoo heev, thiab qhov kev ua yuam kev yog tsawg heev, uas ua kom muaj kev xa khoom loj ntawm cov khoom siv hluav taws xob.SMT tuaj yeem hais tau tias yog kev lag luam kev lag luam hauv kev lag luam hluav taws xob.
Cov txheej txheem tseem ceeb ntawm SMT
SMT yog tus txheej txheem kev lag luam, uas suav nrog PCB thiab cov khoom xa tuaj kuaj thiab kuaj xyuas, tso lub tshuab ua haujlwm, muab tshuaj txhuam / kua nplaum liab txhuam, tso tshuab tso rau, reflow qhov cub, AOI tshuaj xyuas, ntxuav thiab lwm yam txheej txheem.Tsis muaj qhov yuam kev tuaj yeem ua rau hauv ib qho txuas.Cov khoom nkag los xyuas qhov txuas feem ntau ua kom cov ntaub ntawv raug.Lub tshuab muab tso rau yuav tsum tau programmed los txiav txim qhov kev tso kawm thiab kev taw qhia ntawm txhua feem.Cov tshuaj nplaum yog siv rau cov ntaub qhwv ntawm PCB los ntawm cov hlau mesh.Upper thiab reflow soldering yog cov txheej txheem ntawm cua sov thiab melting solder paste, thiab AOI yog cov txheej txheem tshuaj xyuas.
Lub nti yog yuav tsum tau soldered ntawm lub rooj tsav xwm Circuit Court, thiab lub rooj tsav xwm Circuit Court tsis tuaj yeem ua lub luag haujlwm ntawm kev kho cov nti, tab sis tseem ua kom cov hluav taws xob sib txuas ntawm cov chips.
Post lub sij hawm: May-09-2022