Patent ID: 8877026
Filing Date: 2014-11-04
Classification: G01N

Abstract:
1. An electrode assembly comprising: a rod-like body that extends along a predetermined axis; a substrate that is formed with a first through-hole penetrating between a front surface and a back surface and attached to a fore end part of the body; a sensor chip for electrochemical measurement, the sensor chip being provided between the body and the substrate and attached on the back surface of the substrate such that a sensing part is exposed outside from the first through-hole; wiring printed on the back surface of the substrate; and a filling material provided between the sensor chip and the back surface of the substrate, the filling material comprising an outer circumferential surface, and inner circumferential surface, and a filling material through-hole located radially inward from the inner circumferential surface; wherein the sensor chip is flip-chip mounted on the back surface of the substrate such that the sensor chip is connected to the wiring printed on the back surface of the substrate so that the sensor chip outputs an output signal through the wiring printed on the back surface of the substrate; the substrate is attached with being inclined with respect to the predetermined axis of the body, and thereby the front surface of the substrate forms at least a part of a fore end surface that is inclined with respect to the predetermined axis; and wherein the inner circumferential surface of the filling material is sloped inward toward a center of filling material from a substrate side of the filling material to a sensor chip side of the filling material.