Rau lub pcb daim ntawv board, me ntsis carelessness yuav ua rau lub hauv qab phaj deform. Yog tias nws tsis tau txhim kho, nws yuav cuam tshuam rau qhov zoo thiab kev ua haujlwm ntawm pcb daim ntawv board. Yog tias nws raug muab pov tseg ncaj qha, nws yuav ua rau cov nqi poob. Nov yog qee txoj hauv kev los kho qhov deformation ntawm lub phaj hauv qab.
01Splicing
Rau cov duab nrog cov kab yooj yim, cov kab loj loj thiab qhov sib txawv, thiab cov deformations tsis tu ncua, txiav qhov deformed ib feem ntawm cov yeeb yaj kiab tsis zoo, rov ua dua nws tawm tsam qhov chaw ntawm lub rooj tsavxwm drilling, thiab tom qab ntawd luam tawm. Tau kawg, qhov no yog rau cov kab deformed Yooj yim, kab dav dav thiab qhov sib txawv, cov duab tsis xwm yeem deformed; tsis haum rau negatives nrog high hlau ceev thiab kab dav thiab nrug tsawg tshaj li 0.2 hli. Thaum splicing, koj yuav tsum tau them tsawg li sai tau kom puas cov xov hlau thiab tsis yog cov ntaub qhwv. Thaum kho cov version tom qab splicing thiab luam tawm, xyuam xim rau qhov tseeb ntawm kev sib raug zoo ntawm kev sib txuas. Hom qauv no yog qhov tsim nyog rau zaj yeeb yaj kiab uas tsis yog densely dhau thiab deformation ntawm txhua daim npog ntsej muag thiab zaj duab xis ntawm lub zog muab txheej txheem ntawm cov multilayer board .
02 ibPCB luam board hloov qhov txoj hauj lwm txoj kev
Nyob rau hauv cov xwm txheej ntawm kev paub txog kev ua haujlwm ntawm cov cuab yeej digital programming, ua ntej sib piv cov yeeb yaj kiab tsis zoo thiab lub rooj tsav xwm drilling, ntsuas thiab sau qhov ntev thiab qhov dav ntawm lub rooj tsav xwm drilling raws li, thiab tom qab ntawd ntawm cov cuab yeej digital programming, raws li nws. qhov ntev thiab dav ob Qhov loj ntawm qhov deformation, kho lub qhov chaw, thiab kho qhov kho qhov kev ntsuam xyuas lub rooj tsavxwm kom haum rau qhov deformed tsis zoo. Qhov zoo ntawm txoj kev no yog tias nws tshem tawm cov teeb meem kev ua haujlwm ntawm kev kho qhov tsis zoo, thiab tuaj yeem ua kom muaj kev ncaj ncees thiab raug ntawm cov duab. Qhov tsis zoo yog tias kev kho cov yeeb yaj kiab tsis zoo nrog lub zos loj heev deformation thiab tsis sib xws deformation tsis zoo. Txhawm rau siv txoj kev no, koj yuav tsum xub paub txog kev ua haujlwm ntawm cov cuab yeej digital programming. Tom qab lub programming ntsuas tau siv los ua kom ntev lossis luv lub qhov txoj hauj lwm, lub qhov tawm ntawm qhov kev ua siab ntev yuav tsum tau rov pib dua los xyuas kom meej. Txoj kev no yog tsim nyog rau kev kho cov yeeb yaj kiab nrog cov kab ntom ntom lossis cov txheej txheem deformation ntawm zaj duab xis.
03Av sib tshooj txoj kev
Loj lub qhov ntawm lub rooj tsavxwm kuaj rau hauv cov ntaub qhwv kom sib tshooj thiab deform lub voj voog kom paub meej qhov tsawg kawg nkaus ntawm lub nplhaib dav kev cai. Tom qab sib tshooj daim ntawv, lub ncoo yog elliptical, thiab tom qab ntawv sib tshooj, ntug ntawm kab thiab disk yuav halo thiab deformed. Yog tias tus neeg siv muaj qhov xav tau nruj heev ntawm cov tsos ntawm PCB pawg thawj coj saib, thov siv ceev faj. Txoj kev no yog tsim rau cov yeeb yaj kiab nrog kab dav thiab qhov sib nrug ntau dua 0.30mm thiab cov qauv kab tsis dhau ntom.
04 ibKev yees duab
Tsuas yog siv lub koob yees duab kom loj lossis txo cov duab deformed. Feem ntau, qhov poob ntawm zaj duab xis yog qhov siab, thiab nws yog ib qho tsim nyog yuav tsum tau debug ntau zaus kom tau txais cov qauv hauv Circuit Court txaus siab. Thaum thaij duab, qhov tsom xam yuav tsum yog qhov tseeb kom tsis txhob muaj qhov sib txawv ntawm cov kab. Txoj kev no tsuas yog tsim rau cov nyiaj ntsev zaj duab xis xwb, thiab nws tuaj yeem siv tau thaum nws tsis yooj yim rau tho lub rooj tsavxwm kuaj dua thiab qhov deformation piv rau qhov ntev thiab dav cov lus qhia ntawm zaj duab xis yog tib yam.
05Txoj kev dai
Nyob rau hauv kev pom ntawm lub cev tshwm sim uas cov yeeb yaj kiab tsis zoo hloov pauv nrog ib puag ncig kub thiab av noo, tshem cov yeeb yaj kiab tsis zoo tawm ntawm lub hnab ntim khoom ua ntej luam tawm, thiab dai rau 4-8 teev nyob rau hauv ib puag ncig kev ua haujlwm, kom cov yeeb yaj kiab tsis zoo. deformed ua ntej luam. Tom qab luam tawm, lub caij nyoog ntawm deformation tsawg heev.
Rau cov uas twb deformed tsis zoo, lwm yam kev ntsuas yuav tsum tau ua. Vim tias cov yeeb yaj kiab tsis zoo yuav hloov pauv nrog kev hloov pauv ntawm ib puag ncig qhov kub thiab av noo, thaum dai cov yeeb yaj kiab tsis zoo, xyuas kom cov av noo thiab qhov kub thiab txias ntawm qhov ziab thiab qhov chaw ua haujlwm zoo ib yam, thiab nws yuav tsum nyob rau hauv qhov cua thiab qhov chaw tsaus. tiv thaiv cov yeeb yaj kiab tsis zoo los ntawm kev kis kab mob. Txoj kev no yog tsim rau undeformed negatives thiab tuaj yeem tiv thaiv cov negatives los ntawm deforming tom qab luam.