ELECTRONIC CIRCUIT UNIT HAVING INSTALLATION STRUCTURE WITH HIGH SOLDERING RELIABILITY, INCLUDING CONNECTOR TERMINAL HAVING FIRST TERMINAL PORTION ELECTRICALLY CONNECTED TO FIRST LAND PORTION OF CIRCUIT BOARD, AND SECOND TERMINAL PORTION ELECTRICALLY CONNECTED TO SECOND LAND PORTION OF MOTHER BOARD

摘要

PURPOSE: An electronic circuit unit is provided to achieve improved soldering reliability and shield effect between the electronic circuit unit and a mother board. CONSTITUTION: An electronic circuit unit comprises a circuit board(1) having an upper surface on which electronic components are mounted so as to form a desired electric circuit and a lower surface having a plurality of first land portions(3) connected to the electric circuit; and a connector member(4) arranged in a lower portion of the circuit board. The connector member has an insulating resin portion(4a), a metallic shield plate(5) buried in the insulating resin portion, and a connector terminal(6) having a first terminal portion(6a) exposed and protruded from an upper surface of the insulating resin portion and a second terminal(6c) exposed and protruded from a lower surface of the insulating resin portion. The first terminal portion protruded from the upper surface of the connector terminal is electrically connected to the first land portions and the second terminal portion protruded from the lower surface is electrically connected to second land portions(11) of a mother board(10).