| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit information management device, etc. for displaying an amount of heat in a form of shadow in accordance with the path length of a wiring path and designing a via layout for optimizing a heat radiation effect. <P>SOLUTION: A circuit information management device comprises: a circuit information storage part 21 for storing information on a circuit including a via and a chip for which a base area and height are set virtually; a layout part 22 for laying out circuit elements; a radiator light source layout part 24 for, when the via and the chip are connected through wiring, laying out a virtual point light source at a corresponding level above the via to the path length of a wiring path connecting to the chip; a heating element light source layout part 27 for laying out a virtual point light source at a corresponding level above the chip to power consumption; a shadow generation part 25 for using light emitted from each point light source to form shadows for an amount of heat radiated by the via and an amount of heat produced by the chip; a layout change part 29 for changing both or either one of the via and chip layouts so that, in a shadow area of the via and a shadow area of the chip, a difference between their overlapping area and the shadow area of the chip is minimized; and a display control part 26 for displaying formed shadows. <P>COPYRIGHT: (C)2013,JPO&INPIT |
