Patent ID: 7313854
Filing Date: 2008-01-01
Classification: G01L,Y10T

Abstract:
1. A method of manufacturing a tactile sensor, comprising: a first step of forming a side block formation pattern of a force sensor on a bottom surface of a wafer, and forming a piezo-resistor formation pattern of a heat sensor on a top surface of the wafer; a second step of forming a piezo-resistor on the top surface of the wafer through an ion implantation process and depositing an oxide film on the piezo-resistor; a third step of forming contact holes on the piezo-resistor and forming a line hole formation pattern on the oxide film of the heat sensor; a fourth step of forming a metal line, which is a connection line between the contact holes, and a temperature measurement metal line and a heater of the heat sensor on the top surface of the wafer are formed by a metal deposition process and a lift off process; a fifth step of depositing an oxide film on the metal line, the temperature measurement metal line, and the heater, and forming a load block on the oxide film through deposition and etching; and a sixth step of forming a side block of the force sensor by etching the bottom surface of the wafer on which the load block is formed.