Patent ID: 7262682

Claim:
A method for manufacturing a stress sensor for sensing a stress in which the direction and magnitude of the stress is applied to a post bonded to or integrated with a surface of an insulating board can be grasped from variation in resistance of a plurality of resistor elements the method comprising: a first step of fanning resistor-element electrodes, board terminal parts, and conductors so that the resistor-element electrodes are connected through the conductors to the board terminal parts provided at one end of the insulating board; a second step of providing an insulating film on a surface of the insulating board so as not to cover at least the resistor-element electrodes; and a third step of forming resistors by a screen printing method between pairs of the resistor-element electrodes disposed on a surface of the insulating board, wherein the first step, the second step, and the third step are performed in that order; and wherein each resistor element is manufactured by a method comprising: a step A of obtaining conductors on a surface of an insulating board: a step B of positively adjusting the height of parts or entirety of the conductors; and a step C using parts of the conductors as electrodes for forming a resistor by film formation between a pair of the electrodes provided on the surface of the insulating board, in which the steps A, B and C are performed in that order. wherein, in the step B the ratio L/h of the distance (L) between said pair of the electrodes to the height (h) of the conductors is set to 30 or more, or said h is set to 0 or less.