| 摘要 |
<p>The corrosion of a through electrode (3) is prevented by an An electronic device prevents the corrosion of a through electrode (3) by a battery effect between the through electrode (3) and a metal film (7) formed on the upper part of the through electrode (3). An electronic device (1) includes a glass substrate (2), an electronic element (5) mounted on one surface (US) of the glass substrate (2), and a cover (6) covering the electrode element (5) and bonded to the glass substrate (2). The through hole electrode composed of an iron-nickel based alloy and passing through from the one surface (US) to the other surface (LS) is formed on the glass substrate (2). A nickel film (4) is formed on an end face (M) of the through electrode (3) exposed to the other surface (LS) of the glass substrate and the surface of the glass substrate (2) around the end face (M).</p> |
