| 摘要 |
<p>PURPOSE:To make it possible to cut a thick film resistor with laser and the like as required, by providing a parallel connecting circuits of the thick film resistor and a resistor having a surface, as a function trimming resistor between the stages of electric circuits. CONSTITUTION:On an insulating substrate 6 made of ceramics and the like, a thick film conductor 5 and a thick film resistor 2 are formed. Thereafter, the value of the thick film resistor 2 is adjusted to the desired value with laser and the like at a resistance value adjusting part 9. A resistor having a surface 3 and a discrete part 4 are soldered, and a thick film hybrid integrated circuit is formed. Resistors R1 and R2 are connected in parallel. Resistors R3 and R4 are connected in parallel. The circuit is made to be an operating state. When the electric characteristics are deviated from intended values, the resistors R1 or R3 is cut at a resistor cutting place 8 or 9, and the intended values of the electric characteristics are obtained. The resistance values of the resistors R1-F4 are adjusted. The electric characteristics can be adjusted accurately to the intended values. The occupying areas of the resistors required for function trimming can be made small.</p> |
