Rigid-Flex Printed Boards: Peb kauj ruam rau kev ntxuav hauv lub qhov

Nyob rau hauv rigid-flex luam boards, vim tsis zoo adhesion ntawm cov txheej ntawm lub qhov phab ntsa (cov roj hmab ntshiab thiab daim ntawv sib txuas), nws yog ib qho yooj yim ua rau lub txheej cais los ntawm lub qhov phab ntsa thaum raug thermal shock. , kuj yuav tsum tau ib tug recess ntawm txog 20 μm, thiaj li hais tias lub puab tooj liab nplhaib thiab electroplated tooj liab nyob rau hauv ib tug ntau txhim khu kev qha peb-taw tes tiv tauj, uas zoo heev txhim kho lub thermal shock kuj ntawm lub metallized qhov. Capel hauv qab no yuav tham txog nws kom meej rau koj. Peb cov kauj ruam rau kev ntxuav lub qhov tom qab drilling lub rigid-flex board.

Kev paub txog kev ntxuav hauv lub qhov tom qab drilling qhov nruj flex circuits:

Txij li thaum polyimide tsis tiv taus cov alkali muaj zog, yooj yim muaj zog alkaline potassium permanganate desmear tsis haum rau cov ntawv luam tawm yooj yim thiab nruj-flex. Feem ntau, qhov drilling av ntawm lub rooj tsavxwm mos thiab tawv yuav tsum tau muab ntxuav los ntawm cov txheej txheem plasma, uas tau muab faib ua peb kauj ruam:

(1) Tom qab cov khoom siv kab noj hniav nce mus txog qib siab ntawm lub tshuab nqus tsev, cov pa nitrogen siab thiab cov pa purity siab tau txhaj rau hauv qhov sib piv, lub luag haujlwm tseem ceeb yog ntxuav lub qhov phab ntsa, preheat cov ntawv luam tawm, thiab ua cov khoom siv polymer. muaj qee yam kev ua ub no, uas yog qhov txiaj ntsig tom qab ua tiav. Feem ntau, nws yog 80 degrees Celsius thiab lub sij hawm yog 10 feeb.

(2) CF4, O2 thiab Nz hnov ​​​​mob nrog cov resin ua cov roj qub kom ua tiav lub hom phiaj ntawm kev tshem tawm thiab rov qab, feem ntau ntawm 85 degrees Celsius thiab rau 35 feeb.

(3) O2 yog siv los ua cov roj qub kom tshem tawm cov khoom seem lossis "plua plav" tsim thaum thawj ob kauj ruam ntawm kev kho mob; ntxuav lub qhov phab ntsa.

Tab sis nws yog tsim nyog sau cia tias thaum plasma siv los tshem tawm cov av drilling hauv qhov ntawm ntau txheej hloov tau yooj yim thiab tsis yooj yim-yooj yim luam tawm cov laug cam, qhov etching ceev ntawm ntau yam ntaub ntawv txawv, thiab qhov kev txiav txim los ntawm loj mus rau me me yog: acrylic zaj duab xis. , epoxy resin, polyimide, fiberglass thiab tooj liab. Protruding iav fiber ntau lub taub hau thiab cov nplhaib tooj liab tuaj yeem pom tseeb ntawm lub qhov phab ntsa ntawm lub tshuab tsom.

Txhawm rau kom ntseeg tau tias cov tshuaj electroless tooj liab plating tuaj yeem tiv tauj lub qhov phab ntsa, kom cov txheej tooj liab tsis tsim cov voids thiab voids, cov seem ntawm cov tshuaj tiv thaiv ntshav, cov iav fiber ntau thiab cov yeeb yaj kiab polyimide ntawm lub qhov phab ntsa yuav tsum yog. tshem tawm. Txoj kev kho mob muaj xws li tshuaj kho tshuab thiab kev siv tshuab los yog kev sib xyaw ua ke ntawm ob. Cov txheej txheem tshuaj yog tsau cov ntawv luam tawm nrog cov tshuaj ammonium hydrogen fluoride, thiab tom qab ntawd siv cov tshuaj ionic surfactant (KOH tov) los kho cov nqi ntawm lub qhov phab ntsa.

Mechanical txoj kev muaj xws li high-pressure ntub sandblasting thiab high-pressure dej ntxuav. Kev sib xyaw ntawm cov tshuaj thiab cov txheej txheem siv tshuab muaj txiaj ntsig zoo tshaj plaws. Daim ntawv tshaj tawm metallographic qhia tau hais tias lub xeev ntawm cov phab ntsa metallized tom qab plasma decontamination yog txaus siab.

Cov saum toj no yog peb kauj ruam ntawm kev ntxuav lub qhov hauv lub qhov tom qab qhov drilling ntawm cov tawv tawv-flex luam boards ua tib zoo npaj los ntawm Capel. Capel tau tsom mus rau cov khoom lag luam yooj yooj yim luam tawm Circuit Court board, soft board, hard board thiab SMT sib dhos rau 15 xyoo, thiab tau sau ntau yam kev paub hauv kev lag luam hauv Circuit Court. Kuv vam tias qhov kev sib qhia no yuav pab tau rau txhua tus. Yog tias koj muaj lwm cov lus nug hauv Circuit Board, thov sab laj nrog peb Capel pleev xim kev lag luam pab neeg ncaj qha los muab kev txhawb nqa kev tshaj lij rau koj qhov project.