发明授权
US5041191A Diffusion barrier for thin film hybrid circuits 失效
薄膜混合电路的扩散势垒

Diffusion barrier for thin film hybrid circuits
摘要:
A thin film resistor and method of making employs tungsten or tungsten titanium alloy as an alectrically conductive diffusion barrier between the nickel chromium resistor and the gold conductor. A solution of cupric sulfate, ammonium hydroxide, glycerol and deionized water is used to remove the unwanted diffusion barrier without damaging the thin film resistor materials, thereby preserving precision resistance values.
信息查询
0/0