Physiological sensing device

The invention provides a physiological sensing device, which is suitable for sensing a physiological signal of a living body and comprises a sensing chip, a coupling type sensing electrode and a coupling dielectric laminated layer. The coupled sensing electrode is electrically connected with the sensing chip. The coupling dielectric stack covers the coupling sensing electrode and is located between the coupling sensing electrode and the living body. The coupling dielectric stack comprises a first dielectric layer and a second dielectric layer, the dielectric constant of the second dielectric layer is higher than that of the first dielectric layer, and the second dielectric layer is located between the first dielectric layer and the living body. 本发明提供一种生理感测装置，适于感测生物体的生理信号，前述的生理感测装置包括感测芯片、耦合式感测电极以及耦合介电叠层。耦合式感测电极与感测芯片电连接。耦合介电叠层覆盖耦合式感测电极且位于耦合式感测电极与生物体之间。耦合介电叠层包括第一介电层与第二介电层，第二介电层的介电常数高于第一介电层的介电常数，且第二介电层位于第一介电层与生物体之间。