2 Txheej Rigid-Flex PCB

2 Txheej Rigid-flex Circuit Court Stackup

Qhov no yog FR4 ntxiv rau polyimide rigid-flex board (uas yog 2Layers Rigid nrog 1 Flex Layer stackup), 2 txheej nruj flex pcb txheej hauv qab, sab saum toj lossis hauv qab flex ib feem. Feem ntau, qhov hloov pauv tau yog 0.1mm, thiab qhov nruj tuaj yeem yog 0.8-1.6mm. Peb cov nram qab no 2 txheej rigid saj zawg zog pcb thickness yog 0.113mm, thiab cov rigid circuit board yog 0.765mm. Thov saib hauv qab 2 Layers Rigid-flex Circuit Stackup.

Qhov no 2 txheej rigid-flex pcb (2 txheej Rigid nrog 1 Flex Layer stackup) yog ib qho yooj yim tsim nrog txwv qhov chaw thiab kev ua tau zoo.Thiab muaj cov txheej txheem flex hauv nruab nrab.

2 Txheej Rigid-flex PCB Khoom

Rigid-flex PCB feem ntau muaj cov khaubncaws sab nraud povtseg thiab nruj. Cov txheej txheem hloov tau feem ntau yog tsim los ntawm cov ntaub ntawv hauv qab no:

Plexible polyimide tub ntxhais;

conductive tooj liab txheej;

Adhesive

Cov txheej txheem tooj liab yog sandwiched ntawm ob sab nrog cov ntaub nplaum yooj ywm polyimide. Cov txheej txheej polyimide thiab cov nplaum nplaum feem ntau suav hais tias yog ib chav tsev (hu ua txheej txheej) uas tuaj yeem laminated rau txheej tooj liab nrog kub thiab siab. Ntau cov khaubncaws sab nraud povtseg tuaj yeem siv tau rau hauv ib qho qauv tsim.

Qhov nruj yog ntxiv rau cov txheej txheem yooj yim los ntawm cov txheej txheem nruj ntawm cov khoom siv PCB:

Fiberglass prepregs yog infused nrog resins, uas ntws thiab daim ntawv cog lus thaum rhuab;

Tsis yog-conductive fiberglass puag (feem ntau FR-4);

Ib txwm ntsuab solder daim npog qhov ncauj;

Peb cov txheej txheem yooj yim nruj-flex pcb raug tsim

Rigid-flex boards yog cov khoom siv hluav taws xob hloov tau yooj yim thiab cov kab hluav taws xob nruj, uas tau ua ke raws li cov txheej txheem tsim nyog tom qab lamination thiab lwm yam txheej txheem los tsim ib lub rooj tsav xwm Circuit Court nrog FPC yam ntxwv thiab PCB yam ntxwv. Tom qab tsim lub FPC hloov tau yooj yim board, mus los ntawm cov txheej txheem ua kom tiav cov khoom ntawm Rigid-flex board. Thov saib cov txheej txheem tsim khoom hauv qab no.

Rigid-flex board tsab qauv

Vim yog qhov nyuaj ntawm cov txheej txheem tsim khoom ntawm lub rooj tsavxwm nruj-flex, qee qhov kev sib tw tseem ceeb yog qhov nyuaj rau kev tswj, uas yog qhov tseem ceeb hauv ob lub ntsiab lus hauv qab no:

1. Flexible board ib feem:

Rigid board PCB cov cuab yeej tsim khoom tsim cov laug cam. Vim tias cov khoom siv ntawm lub rooj tsavxwm yog mos thiab nyias, lub rooj tsavxwm mos yuav tsum dhau los ntawm lub rooj tsavxwm traction kom tsis txhob khawb lub rooj tsavxwm thaum nws hla tag nrho cov kab rov tav.

Lamination ntawm PI npog zaj duab xis. Nco ntsoov tias PI npog zaj duab xis yuav tsum tau siv hauv zos, thiab qhov ntsuas ceev ceev yuav tsum raug sau tseg. Lub siab yuav tsum ncav cuag 2.45MPa thaum nias ceev, thiab nws yuav tsum tiaj tus thiab compacted thaum nias ceev, thiab yuav tsum tsis muaj teeb meem xws li cua npuas thiab kab noj hniav.

2.Rigid board ib feem:

Lub qhov rais qhib thiab PP ntawm rigid board Core. Lub rooj tsavxwm nyuaj tau txais kev tswj qhov tob milling thiab qhib qhov rais, thiab PP yuav tsum siv NO-FLOW PP, uas tuaj yeem tiv thaiv cov kua nplaum ntau dhau thaum nias.

Rigid-flex board compression expansion thiab contraction tswj. Vim tias qhov tsis zoo ntawm kev nthuav dav thiab kev cog lus ruaj khov ntawm cov khoom siv hauv lub rooj tsavxwm, nws yog ib qho tsim nyog yuav tsum tau muab qhov tseem ceeb rau kev tsim cov board mos thiab laminated PI cover zaj duab xis, thiab ua rau lub rooj tsavxwm nyuaj raws li nws cov expansion thiab contraction coefficient.

Nws yog qhov tseeb vim tias kev tsim cov rigid-flex boards yog qhov nyuaj dua li ntawm lwm cov ntawv luam tawm luv luv, thiab cov txiaj ntsig ntawm cov khoom tiav yog qis dua. Yog li ntawd, yuav tsum muaj pov thawj pov thawj ua ntej daim ntawv thov huab hwm coj thiab cov khoom loj ntawm cov rigid-flex boards.

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