| 摘要 |
PURPOSE:To connect a lead terminal to an electrode for connection securely and improve the reliability by providing a metallic film on the lead terminal of a liquid-crystal display board, and soldering it to the electrode for connection on a circuit board, etc. CONSTITUTION:The lead terminal 7 provided to the projection part of the glass substrate 3 of the liquid-crystal display board is aligned to the corresponding electrode 10 for connection on an insulating substrate 9, and the metallic film 8 provided on the lead terminal 7 and the solder layer 11 on the connection electrode 10 are held in press contact. In this state, the lead terminal 7 is irradiated with laser light 12 from the glass substrate 3 to heat the metallic film 8 with the laser light 12, and the solder layer 11 contacting the metallic film 8 is fused to solder the metallic film 8 and connection electrode 10 to each other. Consequently, lead terminals 7 are soldered without short-circuiting even when their array intervals are narrow.
|
