Nrog rau txoj kev loj hlob ntawm miniaturization ntawm SMD Cheebtsam thiab cov kev xav tau ntau dua thiab siab dua ntawm cov txheej txheem SMT, kev lag luam hluav taws xob tsim hluav taws xob muaj ntau dua thiab ntau dua rau cov khoom siv kuaj.Nyob rau hauv lub neej yav tom ntej, SMT kev cob qhia ntau lawm yuav tsum muaj cov cuab yeej kuaj ntau dua li cov khoom siv SMT ntau lawm.Kev daws zaum kawg yuav tsum yog kev sib xyaw ntawm SPI + AOI ua ntej lub cub tawg + AOI + AXI tom qab lub cub tawg.
- Qhov sib txawv ntawm miniaturization ntawm SMD Cheebtsam thiab qhov kev thov rau AOI cov cuab yeej
Nrog rau kev vam meej ntawm tib neeg thiab kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, ntau thiab ntau cov khoom siv portable ua tau raws li cov neeg xav tau ntau yam, thiab kev tsim khoom yog ntau thiab ntau dua, xws li Bluetooth headsets, PDAs, netbooks, MP4, SD phaib thiab lwm yam.Qhov kev thov rau cov khoom no tau txhawb txoj kev loj hlob ntawm miniaturization ntawm SMD Cheebtsam, thiab lub miniaturization ntawm cov khoom kuj tau txhawb txoj kev loj hlob ntawm cov khoom siv portable.Txoj kev loj hlob ntawm SMD passive Cheebtsam yog zoo li no: 0603 Cheebtsam tshwm sim nyob rau hauv 1983, 0402 Cheebtsam tshwm nyob rau hauv 1989, 0201 Cheebtsam pib tshwm nyob rau hauv 1999, thiab hnub no peb tau pib siv 01005 Cheebtsam.
01005 cov khoom tau pib siv rau hauv qhov loj-sensitive thiab nqi-insensitive cov cuab yeej kho mob xws li pacemakers.Nrog rau qhov loj-scale ntau lawm ntawm 01005 Cheebtsam, tus nqi ntawm 01005 Cheebtsam tau poob los ntawm 5 lub sij hawm piv rau tus nqi thaum nws yog thawj zaug launched, yog li kev siv ntawm 01005 Cheebtsam Nrog kev txo tus nqi, lub Scope yog txuas ntxiv nthuav mus rau cov khoom nyob rau hauv lwm cov teb, yog li stimulating qhov nruam tshwm sim ntawm cov khoom tshiab.
SMD Cheebtsam tau hloov zuj zus los ntawm 0402, mus rau 0201 thiab tom qab ntawd mus rau 01005. Cov kev hloov pauv loj yog qhia hauv daim duab hauv qab no:
Qhov loj ntawm 01005 nti resistor yog 0.4 hli × 0.2 hli × 0.2 hli, thaj tsam tsuas yog 16% thiab 44% ntawm cov qub ob, thiab qhov ntim tsuas yog 6% thiab 30% ntawm cov qub ob.Rau cov khoom loj-rhiab heev, qhov chaw ntawm 01005 coj lub neej rau cov khoom.Tau kawg, nws tseem coj cov kev cov nyom tshiab thiab lub sijhawm rau kev lag luam hluav taws xob tsim khoom!Kev tsim khoom ntawm 01005 Cheebtsam thiab 0201 Cheebtsam muab cov kev xav tau siab heev ntawm SMT cov khoom siv los ntawm pem hauv ntej mus rau sab nraub qaum.
Rau 0402 Cheebtsam, kev tshuaj xyuas qhov muag yog qhov nyuaj heev thiab nyuaj rau qhov kawg, cia nyob ib leeg cov khoom siv 0201 nrov thiab cov khoom tsim 01005.Yog li ntawd, nws yog kev pom zoo ntawm kev lag luam uas SMT cov kab ntau lawm xav tau AOI cov cuab yeej rau kev tshuaj xyuas.Rau cov khoom siv xws li 0201, yog tias muaj teeb meem tshwm sim, nws tsuas yog muab tso rau hauv lub tshuab tsom iav thiab kho nrog cov cuab yeej tshwj xeeb.Yog li ntawd, tus nqi txij nkawm tau dhau los ua ntau dua li ntawm 0402. Rau cov khoom ntawm 01005 loj (0.4 × 0.2 × 0.13mm), nws yog qhov nyuaj rau pom ntawm qhov muag liab qab ib leeg, thiab nws tseem nyuaj rau kev khiav lag luam thiab tswj xyuas. nrog tej cuab yeej.Yog li, yog tias 01005 tivthaiv muaj qhov tsis xws luag hauv cov txheej txheem, nws tsis tuaj yeem kho.Yog li ntawd, nrog rau kev txhim kho ntawm cov khoom siv me me, peb xav tau ntau lub tshuab AOI los tswj cov txheej txheem, tsis yog tsuas yog txhawm rau txheeb xyuas cov khoom tsis raug.Nyob rau hauv txoj kev no, peb tuaj yeem pom qhov tsis xws luag hauv cov txheej txheem kom ntxov li sai tau, txhim kho cov txheej txheem, thiab txo qhov tshwm sim ntawm qhov yuam kev.
- Nyob rau hauv txoj kev no, peb tuaj yeem pom qhov tsis xws luag hauv cov txheej txheem kom ntxov li sai tau, txhim kho cov txheej txheem, thiab txo qhov tshwm sim ntawm qhov yuam kev.
Txawm hais tias cov cuab yeej AOI tau pib txij li 20 xyoo dhau los, rau lub sijhawm ntev, nws kim heev thiab nyuaj rau kev nkag siab, thiab cov txiaj ntsig kev tshawb pom tsis txaus siab.AOI tsuas yog muaj raws li lub tswv yim thiab tsis tau lees paub los ntawm kev ua lag luam.Txawm li cas los xij, txij li xyoo 2005, AOI tau tsim kho sai heev.AOI cov khoom lag luam tau nthuav tawm.Ntau lub tswv yim tshiab thiab cov khoom tshiab tau tshwm sim ib qho tom qab.Hauv particular, domestic AOI cov cuab yeej tsim khoom lag luam yog kev txaus siab ntawm Tuam Tshoj's SMT kev lag luam, thiab cov khoom siv hauv tsev AOI tau siv.Nyob rau hauv qhov tseeb, nws tsis yog nce thiab nqis nrog cov khoom txawv teb chaws, thiab vim tias qhov nce ntawm AOI hauv tsev, tag nrho cov nqi ntawm AOI tau poob mus rau 1/2 rau 1/3 ntawm yav dhau los.Yog li ntawd, nyob rau hauv cov nqe lus ntawm tus nqi zog txuag los ntawm AOI es tsis txhob ntawm phau ntawv pom kev soj ntsuam, muas AOI kuj yog ib qho tsim nyog, tsis txhob hais tias siv AOI kuj tseem tuaj yeem nce tus nqi ncaj nraim ntawm cov khoom thiab tau txais cov txiaj ntsig ruaj khov dua. phau ntawv.Yog li AOI twb yog cov cuab yeej tsim nyog rau cov tuam txhab ua SMT tam sim no.
Raws li ib txwm muaj, AOI tuaj yeem muab tso rau hauv 3 txoj haujlwm hauv SMT cov txheej txheem tsim khoom, tom qab luam tawm cov tshuaj txhuam hniav, ua ntej reflow soldering thiab tom qab reflow soldering los xyuas qhov zoo ntawm cov seem sib txawv.Txawm hais tias kev siv AOI tau dhau los ua qhov sib txawv, cov tuam txhab feem ntau tseem tsuas yog nruab AOI tom qab lub cub tawg, thiab siv AOI ua tus neeg saib xyuas lub rooj zaum kawg rau cov khoom kom ntws mus rau hauv ntu tom ntej, tsuas yog siv cov kev soj ntsuam kev pom.Tsis tas li ntawd, ntau lub tuam txhab tseem muaj kev nkag siab tsis zoo txog AOI.Tsis muaj AOI tuaj yeem ua tiav tsis muaj qhov ntsuas tsis tseeb, thiab tsis muaj AOI tuaj yeem ua tiav tsis muaj kev xeem.Feem ntau AOIs xaiv qhov sib npaug ntawm qhov kev xeem tsis tseeb thiab kev xeem tsis raug, vim tias cov txheej txheem ntawm AOI yog ob qho tib si.Sib piv cov qauv tam sim no nrog cov qauv hauv computer (xws li duab lossis ib qho parameter), thiab txiav txim siab raws li qhov sib xws.
Tam sim no, tseem muaj ntau qhov chaw tuag hauv AOI tom qab siv qhov cub.Piv txwv li, ib leeg-lens AOI tsuas tuaj yeem ntes ib feem ntawm QFP, SOP, thiab vuam tsis tseeb.Txawm li cas los xij, qhov kev kuaj pom tus nqi ntawm ntau lub lens AOI rau QFP thiab SOP's lifted taw thiab tsawg tin tsuas yog 30% siab dua li ntawm ib lub lens AOI, tab sis nws nce tus nqi ntawm AOI thiab qhov nyuaj ntawm kev khiav hauj lwm programming.Cov duab no yog tsim los siv lub teeb pom kev zoo.AOI tsis muaj zog los kuaj pom cov pob qij txha tsis pom xws li BGA cov pob uas ploj lawm thiab PLCC cuav soldering.
Post lub sij hawm: Aug-19-2020