The slide electrode of tri-electrode is just for shielding, and this structure can reduce the requirement of manufacturing tolerance;
三极板结构中动极板仅起屏蔽作用，可以降低对尺体导轨加工精度的要求；
2
Properties and preparing process of tri layer films with Ag base coating, Ni electrodeposit, Sn Pb alloy for terminal electrode of multilayer chip inductor were described.