| 摘要 |
PURPOSE:To avoid any soft error development due to alpha rays by a simple structure by the arrangement of a silicon rubber for cutting off the alpha rays in the required part. CONSTITUTION:A silicon rubber 5 large enough to cover the circuit surface of an IC 7 provided on the surface opposite to the TABIC 7 of a substrate 1 having multiple pads 2 on the surface using a bonding agent 10. Since the opposite surface of the IC 7 is fixed on a cap 8 using another bonding agent 9, the title chip carrier in high reliability capable of avoiding any soft error development due to alpha rays can be manufactured in such a simple structure cutting off the alpha rays by the rubber 5. |
