Patent ID: 7707899

Claim:
A force sensor chip comprising: a base member having an action part including an external force action region and non-deforming regions, a support part for supporting the action part, and connecting parts disposed between the action part and the support part for connecting the action part and the support part; strain resistance elements provided to the connecting parts; and temperature-compensating resistance elements provided to the non-deforming regions of the action part in corresponding relation to respective ones of the strain resistance elements, wherein the action part, connecting parts and support part are separated by a plurality of slit-like holes formed in the base member, wherein the slit-like holes include a first bent part partly defining a portion of the connecting parts to which one of the strain resistance elements is provided and a second bent part extending in one of the non-deforming regions of the action part and located in a vicinity of one of the temperature-compensating resistance elements which is corresponding to said one strain resistance element, wherein a peripheral part of the connecting parts where the strain resistance elements are disposed has the same structure and temperature characteristics as that of a structure of a peripheral part of the non-deforming regions where the temperature-compensating resistance elements are disposed and wherein the first bent part and second bent part of the slit-like holes have the same configuration, and a positional relationship and a distance between said one strain resistance element and the first bent part of the slit-like holes are identical to those between said one temperature-compensating resistance element and the second bent part of the slit-like holes.