Patent 7337666 was granted and assigned to Denso on March, 2008 by the United States Patent and Trademark Office.
A movable sensor device includes a laminate body in which a micromechanical acting layer having a movable sensor structure and a coating layer coated on the micromechanical acting layer is successively laminated on a substrate. A draft portion penetrates through the laminate body in the lamination direction. The draft portion and a residual portion thereof are disposed at a peripheral portion of the movable sensor structure in the laminate body. The residual portion is a thin portion that is smaller in thickness than the laminate body and has a spring function.