Patent ID: 8026185

Claim:
A method for manufacturing an electronic circuit component comprising the steps of: heating a layer containing at least one of a polyimide and a precursor thereof at a temperature of 200° C. or lower to form an insulating layer having a contact angle with water of 80° or more, and forming a coating film comprising a dispersion containing metal nanoparticles on the insulating layer and heating the coating film at a temperature of 200° C. or lower to form a conductive layer, wherein said polyimide and the precursor thereof include at least one of repeating units represented by formula (1) and formula (2): in which A in formula (1) and formula (2) is a tetravalent organic group represented by formula (3): wherein R 1 to R 4 , which is the same or different, each represents a hydrogen atom, a fluorine atom or a monovalent organic group having 1 to 4 carbon atoms, and B represents a divalent organic group, and 10 to 100 mol % of B is a group represented by formula (4): wherein X 1 to X 3 , which may be the same or different, each represents an —O— group, a —CO—O— group, a —CO—S— group, a —CO—NH— group, an alkylene group having 1 to 5 carbon atoms, which has a straight-chain or a branched structure, or an alkylenedioxo group having 1 to 5 carbon atoms, which is a straight-chain or a branched structure, or a single bond, R 5 represents an alkyl group having 6 or more carbon atoms or a fluorine-containing alkyl group having 6 or more carbon atoms, and m and n, which is the same or different, each represents 0 or 1, and the remainder of B is a group free from an —X′—R 5 group in formula (4).