| 摘要 |
<p>PURPOSE:To eliminate necessity of connecting by bonding wires, to reduce its cost and to shorten a term by providing a structure for forming a resistor on the sidewall of an opening of a ceramic board. CONSTITUTION:A first resistor 22A connected at one end to a ground wiring and at the other to a metallized pattern wiring 21A is provided on the sidewall of an opening of a first ceramic board 2A. A second resistor 22B connected at one end to a metallized wiring and a power wiring 23B and at the other to a metallized pattern wiring 21A, and a lead terminal 3 for connecting to the wiring 21A are provided on the sidewall of the opening of a framelike second ceramic board 2B formed with a metallized power wiring 23B of a second power wiring on its upper surface. Thus, necessity of connecting between the resistors 22A, 22B and the wirings 21A, 23B is eliminated, its cost is reduced, and its term is shortened.</p> |
