PCB ntau txheej txheem tsim cov cuab yeej tsim tawm, nws yuav hais tau tias lub rooj tsavxwm uas muaj teeb meem ntau thiab ob chav txheej txheem zoo sib xws, txawm tias qhov thaiv yooj yim dua. Yog tias koj muaj ob txheej txheej tsim, tsim ntau cov khaubncaws sab nraud povtseg tsis yooj yim.
Ua ntej tshaj, koj yuav tsum faib cov txheej txheem. For the sake of yooj yim, nws yog qhov zoo tshaj plaws los mus siv lub substrate raws li qhov chaw thiab faib symmetrically rau ob sab. Cov teeb meem uas nyob ib sab uas nyob ib sab yog sib cais los ntawm cov hluav taws xob.
Laminated qauv (4 txheej, 6 txheej, 8 txheej, 16 txheej):
Rau txoj kab kis kab mob, cov txheej saum toj kawg nkaus yog tus qauv siv lub tshuab kab ua qauv thiab lub teeb liab sab hauv los ua tus qauv. Lub teeb liab txheej ntawm ob sab ntawm lub 6-txheej / 10-txheej / 14-txheej / 18-txheej substrate yog li xav simulated los ntawm software thiab yog troublesome.
Lub teeb liab txheej txheem ntawm ob sab ntawm 6-txheej / 10-txheej / 14-txheej / 18-txheej substrate. Tsis muaj hluav taws xob cais, thiab nws yog qhov yuav tsum tau them sai sai rau txoj kev sib dhos ntawm cov kab uas nyob ib sab uas tsis tshua sib luag thiab zam lub looj AC.
Yog hais tias muaj lwm cov hwj chim, qhov muaj feem thib rau cov hlua kab hauv cov teeb liab. Tsis txhob faib cov hluav taws xob.
Ntxiv mus, nug lub chaw tsim tshuaj paus (qhov dielectric qhov ntev, txoj kab dav, tooj liab, thiab phaj thickness) rau kev txaij impedance. Cov kev txwv no tsis tas yuav muab xam los ntawm lawv tus kheej (nws tsis siv los xam, qhov chaw ua haujlwm yuav tsis muaj peev xwm ua tau) thiab yuav tsum tau muab los ntawm lub khw. Nrog cov ciaj ciam no, koj tuaj yeem xam qhov dav kab, kab kis (3W), thiab kab ntev. Tom qab ntawd koj tuaj yeem pib kos duab lub rooj tsavxwm.
Lub rooj sib txoos sib thooj muaj qhov muag dig, qhov faus qhov thiab qhov ntawm qhov, uas tuaj yeem ua kom yooj yim, tab sis nws kim heev. Qee lub sij hawm nws yog qhov yuav tsum tau txo kom lub rooj sib zog kom thiaj li tau qhov PCI qhov chaw, thiab cov khoom nruab nrab cov ntawv tsis muaj cov kev cai (tshwj tias ntshe yuav tsis muaj tub luam). Nyob rau hauv rooj plaub no, cov ntawv tsis muaj teeb meem yuav siv tau los ntawm kev sib hloov.
Txoj kev kub ceev yog qhov zoo tshaj plaws mus rau sab hauv, sab saum toj pem teb yog yooj yim cuam tshuam los ntawm sab nraud kub, vaum, huab cua, thiab tsis yooj yim rau kev tswj. Yog tias koj xav tau kev ntsuam xyuas, koj tuaj yeem sim seb lub qhov taub coj tawm. Yuav tsis muaj kev ya cov kab lossis cov kab hauv khib nyiab. Cov txheej txheem multi-layer tsis xav tau "kev siv tes ua haujlwm" vim hais tias cov kab no yog nyob sab hauv thiab qee zaus thiab tsis tuaj yeem ya. Cov kab no ntom heev thiab tsis tuaj yeem ua rau drilled. Tsim cov cwj pwm ntawm cov ntaub ntawv kom paub meej tias pawg thawj coj saib kev kawm yog qhov zoo.