| 摘要 |
PURPOSE:To contrive to improve the productivity by enabling to provide a sealing material without flow by a method wherein buried grooves are formed, in the peripheries of the upper and lower surfaces of an element body formed by the polymerization of a P-layer and an N-layer, in the state of leaving the periphery of each layer in annular form. CONSTITUTION:In the peripheries of the upper and lower surfaces of the element body 1, the buried grooves 9 are formed inside the outer peripheral surface of the body 1 in the diameter direction by approx. 0.2-1mm.. This groove 9 has an oblique plane 10 inclined toward an N-layer 3 at one end of the bottom positioned on the side of the outer peripheral surface of the body 1, and the junction part of each P-layer 2 and 4 with the layer 3 is exposed to this oblique plane 10. In the presence of this groove 9, the periphery of each P-layer 2 and 4 is formed into a ring 11 isolated from these P-layers 2 and 4. Besides, each groove 9 is coated with the fluid sealing material 12 such as Si rubber. The processing of the groove 9 in the body 1 is carried out with a processing device. |
