Solder mask Dk Df：防焊油墨材料
Effect of Permittivity and Dissipation Factor of Solder Mask ...
https://www.ipc.org
As a kind of dielectrics, polymer in solder mask has two important dielectric properties, the relative dielectric constant (Dk) and the dissipation factor (Df).
EP3243854A1
https://patents.google.com
The present invention provides a low dielectric constant (Dk) and dissipation factor (Df) of solder resistant mask composition having excellent photo and ...
PCB技術
https://www.ipcb.tw
使用Df來表示訊號流入附近導體（損耗掉）的能量與沿著訊號路徑傳遞的能量之間的比值。 Dk和Df通常是用來評估傳輸線損耗的關鍵因素。 Dk和Df一般是隨著頻率及溫濕度變化的， ...
SI
https://www.accl.com.tw
The low Dk/Df solder mask can improve the micro-strip line insertion loss. Insertion loss. Measurement capability. Measurement ...
TAIWAN TAIYO INK CO.
https://www.taiyoink.com.tw
高頻膠(Low DK DF paste) ; Printing, Slit coating, spin coating, screen printing ; Post-cure, 180oC/1hr ; Peel Strength (with Cu) (ASTM D-1876), 1.7 N/mm.
產品簡介2019年
https://www.otcink.com.tw
Low DK/DF 系列低傳輸損耗型( 2 液型/ 液態感光防焊油墨). Low DK/DF Series ( 2 component / liquid photoimageable solder mask ). 檢驗項目. 一般油墨. Low DK/DF. Dk, ...
軟性印刷電路板用可撓式感光型防焊綠漆
https://www.materialsnet.com.t
軟板的保護膜功能為避免基板上的. 銅線路受外在環境影響而氧化，相當於. 硬板的綠漆(Solder Mask)功能。 ... Dk. 3.6. Df. 0.022. Boiling test (1hour) no abnormalities. 5 ...
防焊綠漆油墨對電性傳導損耗影響
https://ndltd.ncl.edu.tw
本研究利用不同種類的防焊油墨，首先收集油墨的基礎特性，其中包含搭配硬化劑種類、顏色、鹵素含量、絕緣阻抗、介電常數及損號因數等資訊搭配使用不同的烘烤條件、曝光 ...