| 摘要 |
<p>PURPOSE:To provide a resistance circuit at low cost, with still higher density and further capable of keeping constant precision of resistance value by a method wherein a resistor film is formed on front and back surfaces of a material and an electrode on a front surface side is connected to an electrode on a back surface side via an end surface electrode to form a resist or network. CONSTITUTION:Resistor films 11, 12 are respectively formed on front and back surfaces of a material 1 and are respectively connected to electrode films 4, 5, and also are connected to an end surface electrode 8 via the electrode films 4, 5. Further, resistor films 11, 12 are connected to each side of a front surface 2 and a back surface 3 of the material 1 via conductive films 6, 7 to constitute a resistor circuit. Thus, an area of the material 1 can be activated doubly and a restriction when designing a pattern of an electronic circuit is mitigated. Further, precision in resistance value is enhanced by not making a loop circuit when trimming. Further, it is possible to readily decide a front or back surface of the material and omit a mark print onto a back surface by changing a color of a protection film on the front and back surfaces of the material.</p> |
