| 摘要 |
<p>A mounting region (S) is provided at an approximately center of one surface of an insulating layer (1). A conductive trace (2) is formed so as to outwardly extend from inside of the mounting region. A cover insulating layer (4) is formed in a periphery of the mounting region so as to cover the conductive trace. A terminal (21) of the conductive trace is arranged in the mounting region, and a bump (5a) of an electronic component (5) is bonded to the terminal. A metal layer (3) made of copper, for example, is provided on the other surface of the insulating layer. A pair of slits is formed in the metal layer such that a region being opposite to the electronic component is sandwiched therebetween. Each slit is formed so as not to divide the metal layer into a plurality of regions.</p> |
