PREPREG厚度残铜率 線材不神秘--- 何謂“線材”(WIRE)?大家都知道﹕就是連接電路的導線﹐作用不同﹐設計就不同。數據线传输的是数字脉冲信号﹔信号线传输的是低电平小电流的模拟信号﹔音箱线传输的是大电流的模拟信号﹔电源线传输的是交流电或直流電。電子線結構 影響線材的因素 線材結構﹕1.单支导体的截面积和...
Finally, copper texture on a particular laminate is the second key characteristic to be considered. The above two studies Will present efficient dielectric constant calculations for the geometries of microstrip and strip lines without the assumption of copper ruggedness. There is, however, a straightfor...
For the laminates (8 prepregs, the reinforcing material which has the model No. 2116 and a thickness of 0.08 mm) for printed circuit prepared according to the aforesaid disclosure, the glass transition temperature, dielectric constant, dielectric dissipation factor, peel strength, water absorption, ...
Dielectric Constant ( Dk ) @ 1MHz @ 1GHz Dissipation Factor ( Df ) @ 1MHz @ 1GHz Water Absorption PHYSICAL Peel Strength 1oz Flammability Sample thickness ; 32 mil ( 0.8 ㎜ ) * The data in the above table are not guaranteed values. ℃ Min Min ppm / ℃ ppm / ℃ ppm / ℃ ppm /...
Preferred examples of the glass include E glass, T glass, D glass, and the like. Among them, silica and alumina are preferred and silica is more preferred, from the viewpoints of reduction in the thermal expansion coefficient and reduction in relative dielectric constant and dielectric loss ...
Laminate R-1755V Prepreg R-1650V 数据表 - 高可靠性玻璃环氧多层材
Laminate R-5725S Prepreg R-5620S 数据表说明书
PPEs (I) having these group(s) at the terminal(s) thereof have a particularly favorable interaction with a crosslinking curing agent, and allow production of low-dielectric constant products even without the need for adding a great amount of the crosslinking curing agent. In particular, PPEs...
Because polyphenylene ethers (PPE) have excellent dielectric properties such as dielectric constant and loss tangent even in the MHz to GHz high-frequency bands (high-frequency regions), they are effectively used in insulating materials for printed wiring boards and the like in electronic equipment wh...
At that time, attention has been paid to the fact that the resin composition described in Patent Literature 1 has a high dielectric constant and a high dielectric loss tangent in some cases. Moreover, the present inventors have carried out investigations based on an inference that the dielectric...