鋁基板廠家介(jie)紹什么(me)是鋁基板?

　　顧名思義，鋁基(ji)(ji)片的(de)(de)導(dao)熱(re)(re)系數是鋁基(ji)(ji)片的(de)(de)一(yi)種(zhong)散熱(re)(re)函數參數，是衡量(liang)鋁基(ji)(ji)片質量(liang)的(de)(de)三大(da)標(biao)準之一(yi)(熱(re)(re)阻值和耐壓值是另外(wai)兩個函數)。鋁基(ji)(ji)板(ban)的(de)(de)熱(re)(re)導(dao)率可以(yi)在疊片后用(yong)測試儀測量(liang)。現在高(gao)導(dao)熱(re)(re)性(xing)(xing)的(de)(de)材料一(yi)般是陶(tao)瓷、銅等。但考慮到成(cheng)本(ben)，目前大(da)部分(fen)鋁基(ji)(ji)板(ban)都已上市(shi)。鋁基(ji)(ji)板(ban)的(de)(de)相應導(dao)熱(re)(re)系數是我們關心的(de)(de)參數。熱(re)(re)導(dao)率越高(gao)，用(yong)其中一(yi)個符號表示的(de)(de)函數就越好。鋁基(ji)(ji)板(ban)是一(yi)種(zhong)常(chang)見的(de)(de)金(jin)屬基(ji)(ji)銅層壓板(ban)鋁基(ji)(ji)板(ban)，具有優良(liang)的(de)(de)導(dao)熱(re)(re)性(xing)(xing)能、電(dian)絕緣性(xing)(xing)能和加工性(xing)(xing)能。

　　鋁(lv)基(ji)板(ban)(ban)分類(lei)：鋁(lv)基(ji)覆(fu)銅(tong)(tong)(tong)層(ceng)壓板(ban)(ban)分為三類(lei)：一類(lei)是通(tong)用(yong)鋁(lv)基(ji)覆(fu)銅(tong)(tong)(tong)層(ceng)壓板(ban)(ban)，絕緣層(ceng)由(you)(you)環(huan)(huan)氧(yang)玻璃布(bu)粘合板(ban)(ban)組(zu)成;另一類(lei)是高散熱(re)(re)(re)鋁(lv)基(ji)覆(fu)銅(tong)(tong)(tong)層(ceng)壓板(ban)(ban)，由(you)(you)環(huan)(huan)氧(yang)樹(shu)脂或其它材(cai)料(liao)組(zu)成。熱(re)(re)(re)導率高的(de)(de)R樹(shu)脂;第三種(zhong)是由(you)(you)聚(ju)烯烴樹(shu)脂或聚(ju)酰(xian)亞(ya)胺樹(shu)脂玻璃布(bu)組(zu)成的(de)(de)高頻電路用(yong)鋁(lv)基(ji)覆(fu)銅(tong)(tong)(tong)層(ceng)壓板(ban)(ban)。鋁(lv)基(ji)銅(tong)(tong)(tong)層(ceng)壓板(ban)(ban)與傳統的(de)(de)FR-4鍍(du)銅(tong)(tong)(tong)板(ban)(ban)的(de)(de)區別在于散熱(re)(re)(re).與鋁(lv)基(ji)鍍(du)銅(tong)(tong)(tong)板(ban)(ban)相比，厚度為1.5mm的(de)(de)FR-4鍍(du)銅(tong)(tong)(tong)板(ban)(ban)的(de)(de)熱(re)(re)(re)阻(zu)為20≤22，后者為1.0≤2.0，后者比鋁(lv)基(ji)鍍(du)銅(tong)(tong)(tong)板(ban)(ban)的(de)(de)熱(re)(re)(re)阻(zu)小得多。