| 摘要 |
A circuit board (1) is provided upon which a predetermined number of semiconductor elements (5a, 5b, 6), including at least a field-effect transistor for charge and discharge, are mounted. A predetermined number of passive elements (7, 8a &tilde& 8c, 9a &tilde& 9g) are also mounted onto the circuit board. The semiconductor elements (5a, 5b, 6) are mounted facedown as bare chips on the circuit board (1). <IMAGE> |
