Abstract: In a method for obtaining the equivalent oxide thickness of a dielectric layer, a first semiconductor capacitor including a first silicon dioxide layer and a second semiconductor capacitor including a second silicon dioxide layer are provided and a modulation voltage is applied to the semiconductor capacitors to measure a first scanning capacitance microscopic signal and a second scanning capacitance microscopic signal. According to the equivalent oxide thicknesses of the silicon dioxide layers and the scanning capacitance microscopic signals, an impedance ratio is calculated. The modulation voltage is applied to a third semiconductor capacitor including a dielectric layer to measure a third scanning capacitance microscopic signal. Finally, the equivalent oxide thickness of the dielectric layer is obtained according to the equivalent oxide thickness of the first silicon dioxide layer, the first scanning capacitance microscopic signal, third scanning capacitance microscopic signal, and the impedance ratio.

Abstract: A removable healthcare and protective multi-functional leisurewear, particularly the leisurewear with protective plates that can be changed according to a desired level of safety is disclosed. The multi-functional leisurewear includes a plurality of accommodating bags on the leisurewear, and each accommodating bag has a pocket formed on a surface of the leisurewear, and the accommodating bag is provided for containing a protective plate that is swapped from the pocket, and the protective plate is formed by sequentially stacking and combining a flexible wear-resisting layer, a polycarbonate layer with an increased or decreased thickness changed according to the desired level of safety, and a flexible buffer layer attached closely to a wearer's body, so as to improve the convenience of use.