MODULE AND PORTABLE TERMINAL

摘要

PROBLEM TO BE SOLVED: To provide a module and a portable terminal capable of shielding an electronic component sealed by a mold resin and coated by a shield conductor film per circuit block.

SOLUTION: A shield conductor wall is formed between circuit blocks by mounting a plurality of conductor components 16 on a top face of a circuit board 10. Each of the conductor components 16 is electrically connected to a solid ground 19 in an inner layer of the circuit board 10 via a ground pad 17 and a via through hole 18 formed on the circuit board 10. The conductor components 16 can also be made conductive with a shield conductor film 21 by exposing them from a top surface of a mold resin 20 and coating their surfaces with the shield conductor film 21. This enables the conductor components 16 to electromagnetically shield the portion between the circuit blocks, thereby preventing a crosstalk between the circuit blocks and characteristic deterioration caused by EMC radiation noise.

COPYRIGHT: (C)2012,JPO&INPIT