Patent ID: 7645706
Filing Date: 2010-01-12
Classification: H01L,H05K

Abstract:
1. An electronic substrate manufacturing method, comprising: providing a substrate having a surface on which electrode sections are disposed in a row along a first direction; providing a resin member on the surface of the substrate, the resin member being adjacent to the electrode sections and extending substantially along the first direction; forming a wiring pattern on the substrate, the forming of the wiring pattern comprising forming a first conductive film on the substrate, and forming a second conductive film on the first conductive film, the second conductive film made of a material different from that of the first conductive film, the material of the first conductive film having a resistance value higher than that of the material of the second conductive film, the wiring pattern having a first line pattern and a second line pattern that extend along a second direction intersecting with the first direction and that are electrically connected to the electrode sections, a part of each of the first and second line patterns covering the resin member, the wiring pattern further having a connecting portion that connects the first line pattern and the second line pattern, the resin member being disposed between the electrode sections and the connecting portion; providing a mask with an opening for the substrate on which the wiring pattern has been formed, the opening having a size based on an accuracy of an alignment between the substrate and the mask; and performing a specified treatment in a part area of the wiring pattern through the opening of the mask, the performing of the specified treatment comprising removing a part of the second conductive film to form a resistance element at the connecting portion of the wiring pattern.