| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit board in which a type of a solder can be inexpensively and accurately identified. SOLUTION: The circuit board comprises a soldered land 3 and an identifying land 4 formed of a conductor on one surface 2 of a printed board 1, soldered solders 5 formed on surfaces of the land 3 and the land 4, so that the type of the solder 5 is identified according to a spread of the solder and/or a raise to the land 4. Thus, the solder can be inexpensively and accurately identified. COPYRIGHT: (C)2003,JPO
|
