Dab tsi yog qhov siab TG Circuit Board thiab nws qhov zoo yog dab tsi

Thaum qhov kub ntawm lub siab TG luam ntawv board nce mus rau ib qho chaw, lub substrate yuav hloov los ntawm "iav xeev" mus rau "lub xeev roj hmab", thiab qhov kub ntawm lub sij hawm no yog hu ua lub iav hloov kub (TG) ntawm lub rooj tsavxwm. TG yog qhov kub siab tshaj plaws uas lub substrate tseem nruj. Qhov ntawd yog hais tias, cov ntaub ntawv zoo tib yam PCB substrate yuav tsis tsuas yog muag, deform, thiab yaj ntawm qhov kub thiab txias, tab sis kuj qhia qhov poob qis hauv cov khoom siv hluav taws xob thiab hluav taws xob.

Feem ntau TG board yog siab dua 130 degrees, thiab PCB luam ntawv board nrog TG ntau dua los yog sib npaug rau 170 degree feem ntau hu ua lub siab TG luam ntawv board.

TG ntawm lub substrate yog txhim kho, thiab lub tshav kub tsis kam, noo noo tsis kam, tshuaj tsis kam, stability tsis kam thiab lwm yam ntxwv ntawm lub board luam ntawv yuav raug txhim kho thiab txhim kho. Qhov siab dua tus nqi TG, qhov zoo dua qhov ntsuas kub ntawm daim ntawv, tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem tsis muaj txhuas, cov ntawv thov TG siab yog ntau dua.

High TG hais txog kev kub siab ua haujlwm. Cov khoom siv hluav taws xob uas sawv cev los ntawm cov khoos phis tawj tau tsim los ntawm kev ua haujlwm siab thiab ntau txheej txheej, thiab yuav tsum tau ua kom muaj cua sov siab dua ntawm cov ntaub ntawv PCB substrate ua qhov tseem ceeb lav. Kev tshwm sim thiab kev loj hlob ntawm high-density mounting technologies sawv cev los ntawm SMT thiab CMT tau ua PCBs ntau thiab ntau inseparable los ntawm kev txhawb siab kub tsis kam ntawm substrates nyob rau hauv cov nqe lus ntawm me me apertures, nplua kab, thiab thinning.

Yog li ntawd, qhov sib txawv ntawm cov dav dav FR-4 thiab siab TG FR-4 yog tias nyob rau hauv lub xeev kub, tshwj xeeb tshaj yog thaum rhuab tom qab noo noo nqus, lub zog mechanical, dimension stability, adhesiveness, dej nqus, thermal decomposition ntawm Cov khoom muaj qhov sib txawv ntawm ntau yam xws li thermal expansion, siab TG khoom yog pom tseeb zoo dua li cov khoom siv PCB substrate.