| 摘要 |
PURPOSE:To improve the heat dissipating property at the time of cutting a film fuse by forming an opening, so that it may correspond to the pattern of a film fuse, at the third insulating layer on a second insulating layer which covers a first insulating layer and a film fuse. CONSTITUTION:An opening 19 is made, so that it may correspond to the pattern of a film fuse 12, at the third insulating layer 17 on a second insulating layer 16 which covers a first insulating layer 15 and the film fuse 12. Hereby, in the case that high melting point metal such as molybdenum, etc., is used for the film fuse, when cutting this by letting current flow, such troubles that the silicon substrate gets in fused conditions instantaneously can be reduced, and heat dissipating property can be improved. |
