Identifier-providing device for computer device

An electrically conductive device, comprising:

• a base material as an insulator, and
• a conductive layer pattern formed by coating a silver paste on a predetermined surface of the base material so as to be a predetermined pattern by printing,
• wherein the silver paste for forming the conductive layer pattern contains, as silver particles, only silver flake having a particle size in a range of 3.0 to 5.0 μm and a thickness at a maximum thickness portion which is a positive number in a range of 100 nm or less and a thickness at an extremely small thickness portion which is a positive number in a range of 50 nm or less,
• wherein the thickness at the maximum thickness portion of the silver flake is larger than an average thickness of the silver flake, while the thickness at the extremely small thickness portion of the silver flake is smaller than the average thickness of the silver flake,
• wherein the conductive layer pattern is formed by laminating the silver flakes in a thickness direction such that a film thickness which is a positive number in a range of 10 μm or less, and
• wherein the silver flakes forming the conductive layer is in a fused state or in an aggregated/cohering state with each other at the extremely small thickness portion.