| 摘要 |
PROBLEM TO BE SOLVED: To enable the press straightening of a substrate with ease by pressing the dead space part of a substrate to be tested which is hold by a staightening bar and board carrier from top and inserting mounting brackets at both ends of the straightening bar into a straightening bar guide rail and fixing them there. SOLUTION: A board 5 to be tested is hold and carried by a board carrier 4. A straightening bar guide rail 1 is provided on a carrier 4. A straightening bar 2 is pressed and supported. And then the board 5 is pressed and straightened. The rail 1 is capable of straightening, pressing and fixing the bar 2 at a desired location and freely detachable with ease. The bar 2 presses and straightens the upward warpage of the board 5. Its bottom part which presses a dead space part 9 is provided with a linear pressing part. The both ends of the bar 2 are provided with nail part structures which insert, support and fix the mounting brackets 3 into rail grooves formed on the rail 1. Therefore it becomes possible to press and straighten the board 5 up to a horizontal position and to test the board 5 in a stable state of position. |
