A fine vacuum tube element and other electronic elements are integrated and formed on a semiconductor substrate, and the fine vacuum tube element and the other electronic elements transmit signals to and from each other. The chemox layer is thinner than the dielectric layer on the second array of fins. The knee extension therapy apparatus can be collapsed for easy transport. Furthermore, the circles of odd ordinal numbers comprise odd sections, for instance, the third circle comprises three sections; the circles of even ordinal numbers comprise even sections, for instance, the fourth circle comprises four sections; each section comprises induction areas of substantially the same size. The lipstick is formed of a light diffusing material, that is at least partly transmissive to light, and a selectively-actuable light source such as an LED is mounted in the housing part so that light emitted therefrom enters the fixed end of the mass and is diffused or transmitted along and within the mass to thereby internally illuminate the lipstick mass. As a result, a planer type semiconductor device production apparatus that can conduct favorable welding, and a method of fabricating a planer type semiconductor device using such a production apparatus are obtained.