Tsis zoo li cov neeg siv khoom siv hluav taws xob cov khoom siv hluav taws xob, cov khoom siv hluav taws xob loj thiab qib siab tau siv hauv cov khoom siv kho mob feem ntau muaj cov yam ntxwv ntawm cov khoom tiav loj, cov txheej txheem ntau ntawm 20 lossis ntau dua, thiab qee cov qauv high-end txawm mus txog 30 lossis ntau txheej. Nyob rau tib lub sijhawm, lawv kuj yuav tsum tau ua kom tau raws li cov kev cai nruj ntawm kev hloov pauv ntawm impedance qis, tsis tshua muaj teeb liab poob, thiab lub sijhawm ntev ntawm ib puag ncig kev laus. Los ntawm kev tshuaj xyuas ua ntej engineering mus rau qhov kawg ntawm cov khoom xa tuaj, tag nrho cov txheej txheem tsim khoom yuav tsum tsim kom muaj kev tswj xyuas cov txheej txheem ntawm qhov tseeb, sib xws, thiab kev ntseeg tau.
Xauv cov txiaj ntsig los ntawm qhov kawg tsim: DFM kev pom zoo ua ntej rau cov xwm txheej kho mob
Kev tsim cov teeb meem ntawm cov loj-loj siab-theem kho mob luam ntawv Circuit Court boards pib tshwm sim ua ntej cov ntaub ntawv tsim tau raug xa mus rau hauv cov kab ntau lawm. Cov cuab yeej siv kho mob suav nrog ntau qhov kev ntsuas kev kub ceev, cov teeb liab analog ua haujlwm, thiab cov hluav taws xob hluav taws xob hluav taws xob hauv tsev. Nyob rau hauv PCB layouts, high-density BGA cheeb tsam, loj-loj fais fab tooj liab foils, thiab ntev-kev sib txawv xov hlau feem ntau coexist. Kev tsis saib xyuas me ntsis tuaj yeem ua rau muaj teeb meem xws li txheej txheem tsis ncaj ncees, impedance tshaj cov qauv, lossis teeb liab crosstalk.
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(常见问题示例)
Rau cov khoom lag luam xav tau siab, peb yuav ua tus thawj coj hauv kev pib tshawb xyuas DFM tshwj xeeb rau cov xwm txheej kho mob:
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Raws li tag nrho cov deformation sib txawv ntawm cov laug cam loj, optimize qhov layout ntawm vaj huam sib luag splicing thiab txheej txheem ntug tsim kom tsis txhob stretching deformation ntawm Circuit Court nyob rau hauv lub ntug cheeb tsam ntawm lub board nto.
Rau cov txheej txheem txheej txheem siab, CTE kev sib raug zoo ntawm daim ntawv kho ib nrab, cov ntawv ci tooj liab, thiab cov core board raug kuaj xyuas ib los ntawm ib qho los txo qhov kev pheej hmoo ntawm warping hauv cov txheej txheem lamination tom ntej los ntawm qhov chaw.
Kev them nyiaj rau cov kab dav thiab qhov sib txawv ntawm cov kab sib txawv ntawm cov kab sib txawv thiab cov kab hluav taws xob tsawg impedance feem ntau siv hauv cov khoom siv duab, txhawm rau tshem tawm impedance drift los ntawm etching thiab tooj liab thickness sib txawv ua ntej.
Ua raws li kev soj ntsuam xyuas ntawm qhov ntom ntom ntawm hauv qab BGA, rwb thaiv tsev qhov khoob hauv qhov chaw siab-voltage, thiab analog teeb liab cais cov kab xev kom ua tiav tag nrho cov qauv kev nyab xeeb rau kev ua haujlwm ntev ntawm cov khoom siv kho mob.
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Case: Nyob rau hauv 32 txheej kev kho mob imaging tswj board project, nws yog los ntawm kev tshuaj xyuas ua ntej DFM uas zais kev phom sij xws li asymmetric stacking nyob rau qee qhov chaw thiab kev faib tsis sib xws ntawm cov ntawv nyiaj tooj liab hauv qee qhov ntawm cov qauv tsim tau raug txheeb xyuas ua ntej. Kev ua kom zoo ntawm cov txheej txheem stacking tau ua tiav yam tsis muaj kev cuam tshuam rau kev ua haujlwm hluav taws xob, tso lub hauv paus ruaj khov rau kev txhim kho tom ntej ntawm tag nrho cov txheej txheem tawm los.
Xauv cov txiaj ntsig los ntawm qhov kawg tsim: DFM kev pom zoo ua ntej rau cov xwm txheej kho mob
Kev tsim cov txheej txheej sab hauv rau cov khoom loj-theem high-theem luam ntawv Circuit Court boards yog lub hauv paus tseem ceeb uas txiav txim siab lub teeb liab kev ncaj ncees ntawm cov khoom kawg. Cov txheej txheem sab hauv ntawm cov khoom siv kho mob feem ntau yog nruab nrog ntau tus lej qis-voltage analog sampling kab thiab high-ceev cov ntaub ntawv kis tau tus mob. Cov kab dav thiab qhov sib nrug feem ntau zoo heev. Nyob rau tib lub sijhawm, qhov stretching thiab thermal expansion / contraction cuam tshuam ntawm lub rooj tsavxwm loj ntawm qhov chaw ncaj qha cuam tshuam nrog kev sib raug zoo ntawm interlayer.
Hauv cov txheej txheem tsim khoom tiag tiag, cov khoom lag luam no feem ntau siv LDI laser direct imaging technology es tsis txhob ntawm cov yeeb yaj kiab raug, uas tsim nyog zam qhov kev ua yuam kev ntawm cov yeeb yaj kiab loj loj nws tus kheej. Nyob rau tib lub sijhawm, kev nthuav dav thiab kev cog lus coefficients ntawm txhua txheej ntawm lub rooj tsav xwm tseem ceeb yog cais ntsuas thiab dynamically compensated, yog li ntawd cov duab hluav taws xob ntawm cov haujlwm sib txawv tuaj yeem raug poob rau hauv qhov kev tso cai ntawm cov qauv tsim. Tom qab etching ntawm lub Circuit Court ua tiav, AOI tsis siv neeg kho qhov muag tshuaj xyuas txheej txheem yog 100% them, thiab qhib circuits, luv circuits, tsis txaus kab dav, thiab seem tooj liab tsis xws luag raug kuaj ib los ntawm ib tug kom tsis txhob muaj teeb meem nyob rau hauv lub puab txheej los ntawm ntws mus rau hauv cov txheej txheem tom ntej.
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Noj 22 txheej txheej kev lag luam duab nrhiav tau los ntawm Uniwell Circuits ua piv txwv, los ntawm kev siv qib kev nthuav dav thiab kev cog lus tswj ntawm lub rooj tsavxwm sab hauv, qhov sib txawv ntawm qhov sib txawv ntawm sab hauv Circuit Court yog qhov kawg tswj nyob rau hauv ± 20 μ m. Txawm hais tias nyob rau hauv cov cheeb tsam ntawm lub rooj tsavxwm loj, txoj kab dav qhov tseeb ntawm cov khub zoo sib txawv tseem nyob ruaj khov, ua kom tau raws li qhov xav tau ntawm qhov ntsuas qhov tseeb ntawm kev kho mob imaging systems.
Cov txheej txheem tseem ceeb: Kev tiv thaiv deformation tswj ntawm qhov loj-loj siab siab compression
Compression yog cov txheej txheem nyuaj tshaj plaws hauv kev tsim cov khoom loj, qib siab kev kho mob luam tawm Circuit Court boards, uas ncaj qha txiav txim siab interlayer bonding force thiab warpage kev ua tau zoo ntawm tag nrho pawg thawj coj saib. Lub PCB siv rau hauv cov khoom siv kho mob feem ntau muaj cov tuab tuab, nrog qee cov khoom tiav muaj thickness ntau tshaj 3 hli. Thaum lub sij hawm stacking txheej txheem, kaum ob ntawm cov txheej txheem ntawm core boards, semi-kho nplooj ntawv, thiab tooj liab foils yog stacked txheej los ntawm txheej, uas yuav yooj yim ua rau interlayer plam, tsis sib xws resin flow, lub zos kev nyuaj siab concentration, thiab lwm yam teeb meem nyob rau hauv kub kub thiab siab kub puag ncig, thaum kawg ua rau delamination los yog board warping thiab lwm yam tsis xws luag.
Rau qhov tshwj xeeb uas yuav tsum tau ntawm cov khoom qib kho mob, lub siab compression parameter system yuav raug tsim los ntawm cov txheej txheem kawg:
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Kev siv qhov ntsuas kub thiab qhov siab nce nkhaus kom tsis txhob muaj qhov sib txawv ntawm qhov kev ntxhov siab hauv zos los ntawm qhov kub thiab txias hloov pauv ntawm cov khoom loj loj.
Kev tswj nruj nruj yuav tsum tau ua raws li qhov sib luag ntawm cov qauv laminated, thiab kev faib ntawm cov ntawv ci tooj liab, xaiv cov nplooj ntawv kho kom zoo, thiab kev teeb tsa ntawm cov laug cam yuav tsum ua raws li lub hauv paus ntsiab lus ntawm symmetry.
Tom qab compression, lub interlayer theem nrab calibration yog ua tiav los ntawm X-ray qhov chaw drilling qhov rau ntxiv kho tag nrho offset ntawm daim hlau loj.
Tom qab compression, kev tshuaj xyuas tag nrho ntawm lub tiaj tus ntawm lub rooj tsavxwm yog ua kom nruj tswj lub warpage nyob rau hauv 0.75% ntawm tus qauv IPC, ua tau raws li cov kev cai siab ntawm cov khoom siv kho mob automation mounting.
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Case: 26 txheej lub rooj tsav xwm tseem ceeb tau siv rau CT imaging system, siv cov cuab yeej siv kho kom haum, ua tiav qhov teeb meem deformation ntawm ntau txheej txheej txheej ntawm lub rooj tsavxwm loj. Cov khoom tseem khaws cia tsis tshua muaj kev sib ntaus sib tua thaum lub sij hawm tom ntej SMT reflow soldering txheej txheem, thiab BGA cheeb tsam mounting yield tag nrho mus txog qib khoom kho mob tus qauv.
Precision qhov machining thiab qib kho mob kev ntseeg tau kaw-loop pov thawj
Muaj ntau tus neeg kho tshuab los ntawm qhov, high-precision rov qab drilled qhov, thiab ib co precision dig qhov qhov siv rau high-density interconnection nyob rau hauv lub PCB ntawm kev kho mob cov cuab yeej. Qhov chaw qhov raug, qhov phab ntsa roughness, thiab rov qab drilling qhov tob tswj qhov yuam kev yuav cuam tshuam ncaj qha rau lub teeb liab kis tau tus mob. Cov phaj loj loj yog qhov ua rau qhov chaw co thiab qhov hloov pauv thaum lub sij hawm drilling, thaum cov qauv siab siab yuav tsum muaj qhov sib xws ntawm lub qhov phab ntsa metallization.
Qhov kawg tsim tau txais kev kub ceev thiab high-precision CNC drilling tshuab, uas phim tshwj xeeb drilling ceev thiab pub tsis tau rau qhov sib txawv diameters thiab phaj thicknesses. Nyob rau tib lub sijhawm, cov kab ntau dhau hauv cov teeb liab txheej tau raug tshem tawm los ntawm kev siv tshuab rov qab drilling, zoo heev txo cov kev sib kis thiab kev xav ntawm cov teeb liab ceev. Cov tooj liab deposition thiab tag nrho board electroplating txheej txheem nruj me ntsis tswj lub uniformity ntawm tooj liab thickness los xyuas kom meej tias cov tooj liab thickness ntawm tag nrho cov qhov nyob rau hauv tag nrho cov board raws li lub sij hawm ntev kev cia siab ntawm kev kho mob qib.
Nyob rau hauv cov khoom tiav lawm, tag nrho cov loj-loj loj-theem luam ntawv Circuit Court boards rau kev kho mob cov cuab yeej yuav tsum tau ib tug ua tiav kev ntseeg tau kaw-loop pov thawj: ntxiv rau cov pa ya tus pin hluav taws xob kuaj, nruj thermal cycling testing, IST interconnect stress testing, thiab high humidity thiab high kub ib puag ncig kuaj yuav tsum tau ntxiv kom paub meej tias cov khoom yuav tsis muaj kev cuam tshuam cov teeb liab sib cais los yog kev sib cais. electromagnetic ib puag ncig thiab kev ua haujlwm mus sij hawm ntev hauv tsev kho mob.
Kev tsim muaj peev xwm ntawm cov loj-loj, qib high-theem luam ntawv Circuit Court boards, los ntawm 32 txheej semiconductor imaging test boards mus rau 20 khaubncaws sab nraud povtseg kho mob imaging system tswj boards, qhov tseem ceeb qhia txog lub zog ntawm cov ntaub ntawv, khoom siv, txheej txheem, thiab kev ntseeg siab systems. Rau kev lag luam duab kho mob, PCB ruaj khov tsis yog tsuas yog cov khoom siv kho vajtse xwb, tab sis kuj tseem yog cov hauv paus ntsiab lus lav rau cov ntaub ntawv kuaj pom tseeb thiab txhim khu kev qha.