Kev tsim cov PCB qib siab Circuit Court boards tsis tsuas yog yuav tsum tau muaj kev nqis peev ntau dua hauv kev siv thev naus laus zis thiab cov cuab yeej siv, tab sis kuj yuav tsum muaj kev sib sau ntawm cov kws tshaj lij thiab cov neeg ua haujlwm tsim khoom. Nws yog qhov nyuaj rau txheej txheem ntau dua li cov txheej txheem ntau txheej hauv Circuit Court, thiab nws cov kev xav tau zoo thiab kev ntseeg siab yog siab.
1. Kev xaiv cov khoom siv
Nrog rau kev txhim kho cov khoom siv hluav taws xob ua tau zoo thiab muaj ntau yam khoom siv hluav taws xob, nrog rau cov khoom siv hluav taws xob ntau thiab kev kub ceev, cov khoom siv hluav taws xob hauv hluav taws xob yuav tsum muaj qhov tsis tshua muaj hluav taws xob tsis tu ncua thiab dielectric poob, nrog rau CTE tsawg thiab nqus dej tsawg. . tus nqi thiab zoo dua cov ntaub ntawv CCL kom ua tau raws li kev ua thiab kev ntseeg tau ntawm cov rooj tog siab.
2. Laminated qauv tsim
Cov ntsiab lus tseem ceeb hauv kev tsim cov qauv laminated yog cov cua kub tsis kam, tiv taus hluav taws xob, cov kua nplaum filling thiab thickness ntawm dielectric txheej, thiab lwm yam. Cov ntsiab lus hauv qab no yuav tsum ua raws li:
(1) Lub prepreg thiab core board manufacturers yuav tsum sib xws.
(2) Thaum tus neeg siv khoom xav tau daim ntawv TG siab, lub rooj tsav xwm tseem ceeb thiab cov prepreg yuav tsum siv cov khoom siv siab TG sib xws.
(3) Sab hauv txheej substrate yog 3OZ lossis siab dua, thiab cov prepreg nrog cov ntsiab lus siab resin raug xaiv.
(4) Yog tias tus neeg siv khoom tsis muaj qhov tshwj xeeb yuav tsum tau ua, lub thickness kam rau ua ntawm interlayer dielectric txheej feem ntau tswj los ntawm +/-10%. Rau cov phaj impedance, dielectric thickness kam rau ua yog tswj los ntawm IPC-4101 C / M chav kawm kam rau ua.
3. Interlayer alignment tswj
Qhov tseeb ntawm qhov loj me me ntawm cov txheej txheem txheej txheej hauv lub rooj tsavxwm thiab kev tswj ntawm qhov loj me yuav tsum tau them nyiaj kom raug rau cov duab loj ntawm txhua txheej ntawm lub rooj tsavxwm siab los ntawm cov ntaub ntawv sau thaum lub sijhawm tsim khoom thiab cov ntaub ntawv keeb kwm kev paub txog qee yam. lub sij hawm ntawm lub sij hawm los xyuas kom meej lub expansion thiab contraction ntawm lub core board ntawm txhua txheej. sib xws.
4. Sab hauv txheej txheej txheej tshuab
Rau kev tsim cov boards siab, lub laser direct imaging tshuab (LDI) tuaj yeem qhia tau los txhim kho cov duab tsom xam muaj peev xwm. Txhawm rau txhim kho txoj kab etching muaj peev xwm, nws yog ib qho tsim nyog yuav tsum tau them nyiaj tsim nyog rau qhov dav ntawm txoj kab thiab lub ncoo hauv kev tsim qauv engineering, thiab paub meej tias qhov kev tsim qauv them nyiaj ntawm cov txheej txheej sab hauv kab dav, kab sib nrug, kev sib cais lub nplhaib loj, txoj kab ywj pheej, thiab qhov deb-rau-kab deb yog tsim nyog, txwv tsis pub hloov engineering tsim.
5. Nias txheej txheem
Tam sim no, interlayer positioning txoj kev ua ntej lamination mas muaj xws li: plaub-qhov chaw (Pin LAM), kub yaj, rivet, kub yaj thiab rivet ua ke. Cov khoom sib txawv siv cov txheej txheem sib txawv.
6. Drilling txheej txheem
Vim lub superposition ntawm txhua txheej, lub phaj thiab tooj liab txheej yog super tuab, uas yuav hnav lub laum me ntsis thiab yooj yim tawg lub laum hniav. Tus naj npawb ntawm qhov, poob ceev thiab kev sib hloov ceev yuav tsum tau kho kom haum.
Post lub sij hawm: Sep-26-2022