Abstract
The growth process of silver dendrite due to ionic migration on glass substrate has been studied by confocal laser microscope. The migration between screen-printed silver electrodes with gap of 0.5mm was occurred both under the condition of 25°C, 98%R.H, and in the de-ionized water, The results were analyzed by the dimentionality of fractal natures of the dendrite growth. The area S of dendirte increases with time t according to S=tDt, where a factor Dt is approxiately ranging from 0.4 to 4.4. The shape fractal demension of dendrite (Ds) is approxiately ranging from 1.5 to 1.8. We show that a failure time can estimated from Dt, Ds and an unisotropic ratio of dendrite growth.
