PCByog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob hauv hluav taws xob, txuas cov hluav taws xob ua ke thiab ua haujlwm ua "lub hlwb" ntawm cov khoom siv hluav taws xob. PCBs tuaj yeem muab faib ua ntau hom raws li qhov sib txawv daim ntawv thov scenarios thiab yuav tsum tau ua.
1, Ib txheej board
Ib txheej board yog qhov yooj yim tshaj plaws PCB. Ib txheej txheej txheej tsuas muaj ib txheej ntawm cov ntawv ci tooj liab, uas yog siv los txuas cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Cov txheej txheem ib txheej txheej no muaj tus nqi qis thiab kev tsim khoom siab, ua rau nws tsim nyog rau kev tsim khoom siv hluav taws xob yooj yim. Txawm li cas los xij, vim muaj qhov txwv tsis pub dhau ntawm cov txheej txheem ib leeg, tsuas yog cov qauv tsim hluav taws xob yooj yim tuaj yeem ua tau, thiab muaj cov kev txwv tseem ceeb hauv ntau zaus circuits lossis impedance tswj circuits.
2, Ob chav txheej board
Lub rooj tsavxwm ob txheej yog qhov nyuaj dua li ib txheej txheej txheej, vim nws muaj ob txheej ntawm cov ntawv ci tooj liab siv los txuas cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob. Los ntawm kev xuas nrig ntaus qhov nruab nrab ntawm sab sauv thiab qis tooj liab foils, kev sib txuas hauv Circuit Court tuaj yeem ua tiav. Ob chav txheej boards yog tsim rau Circuit Court board tsim ntawm nruab nrab complexity, nrog ntau dua kev ntseeg siab thiab ua hauj lwm kev ua tau zoo. Txawm li cas los xij, vim muaj qhov txwv ntawm lub rooj tsavxwm, ntau zaus circuits lossis impedance tswj circuits tseem muaj qee yam kev txwv.
Multilayer boards feem ntau muaj 3-10 txheej ntawm cov ntawv ci tooj liab, txuas nrog cov txheej txheem xws li perforation thiab stacking. Multilayer boards muaj kev ntseeg siab dua thiab kev ua haujlwm ntawm kev ua haujlwm, ua rau lawv tsim nyog rau kev tsim qauv hauv Circuit Board. Nws tau tsim qee qhov zoo hauv kev ua haujlwm ntawm high-frequency circuits thiab impedance tswj circuits, thiab vim muaj kev drilling thiab stacking, qhov hnyav thiab ntim ntawm lub rooj tsavxwm kuj tau txo qis. Txawm li cas los xij, vim muaj kev xav tau ntau dua rau kev ua haujlwm thiab kev sib txuas thev naus laus zis, tus nqi ntawm ntau txheej boards kuj yog siab.
High zaus boards yog tsuas yog siv rau high-ceev teeb liab thiab RF teeb liab daim ntaub ntawv. High zaus boards yuav tsum tau them sai sai rau impedance tswj thiab teeb liab kev ncaj ncees, yuav tsum tau siv cov ntaub ntawv tshwj xeeb thiab cov txheej txheem ua. Nyob rau tib lub sijhawm, impedance txuam thev naus laus zis yuav tsum tau txiav txim siab thaum tsim lub rooj tsavxwm. High zaus boards muaj kev ua haujlwm siab thiab kev ntseeg siab, tab sis tus nqi kuj tseem siab.
5, Rigid Board
Rigid board yog ib hom nruj PCB uas feem ntau siv hauv kev tsim khoom siv hluav taws xob. Cov khoom siv ntawm cov laug cam yog feem ntau iav fiber ntau los yog insulating nruab nrab, uas muaj cov neeg kho tshuab zoo thiab ruaj khov, thiab haum rau cov khoom loj lossis cov khoom siv siv tshuab, xws li cov khoom siv hluav taws xob, cov cuab yeej tswj, thiab lwm yam. Meanwhile, cov nqi tsim khoom ntawm cov boards nruj yog kuj tsis tshua muaj, thiab lawv feem ntau yog ib qho ntawm cov ntaub ntawv tseem ceeb hauv Circuit Court board manufacturing lag luam.
Flexible board yog ib hom PCB board tsis muaj daim ntawv ruaj khov, uas tuaj yeem hloov mus rau ntau qhov kev thov. Cov boards yooj yim yog ua los ntawm cov khoom siv tau yooj yim thiab tuaj nrog cov ntawv ci tooj liab thiab cov khoom siv hluav taws xob, muab cov qib siab ntawm kev hloov pauv. Qhov zoo ntawm cov boards hloov tau yooj yim yog tias lawv tuaj yeem khoov thiab folded, ua kom yooj yim ntawm cov khoom siv hluav taws xob, txuag chaw, thiab txo cov nqi tsim khoom. Lub caij no, cov boards hloov tau muaj ntau yam kev siv, npog ntau yam.
7, Impedance tswj board
Impedance tswj board yog high-end PCB uas feem ntau ua cov high-speed digital circuits thiab analog teeb liab, thiab muaj peev xwm ua tiav impedance tswj kom ua tau zoo kis tau tus mob ntawm RF signals. Impedance tswj boards xav tau kev tsim khoom ntau dua thiab siv cov khoom siv ua haujlwm siab, ua rau cov nqi ntau dua.
8, Stacked compression phaj
Stacked compression daim hlau yog siv los ntawm ntau txheej boards kom compress ntau txheej ua ke thiab txuas lawv siv hluav taws xob perforations. Hom lub rooj tsavxwm no tuaj yeem txhim kho qhov chaw siv tau zoo, txo qhov hnyav ntawm lub rooj tsavxwm thiab tus nqi, thiab ua tiav kev sib kis ceev thiab kev tswj xyuas impedance.