| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen printing method, with which no printing quality is influenced in the case of plate separation when the screen separate from a board, even before and after the filling of cream solder. SOLUTION: A frameless screen 1 is separated from a board 2 under the condition that a plate separation angleθis kept constant by lifting the clamp 4a of the frameless screen 1 by the amount in proportion to the travelled amount L of a squeegee 5 with the squeegee 5 as a fulcrum when printing is performed on a board 2 by charging creamy solder 3 in an opening part 1a by travelling the squeegee 5 under the state that the squeegee 5 is arranged on the frameless screen having the opening parts 1a with a pattern to be printed. At printing, tension is applied to the frameless screen 1 from the printing start side end of the frameless screen 1 and the printing end side of the frameless screen 1 is fixed by a clamp 4b. Since the tension applying to the frameless screen can be kept constant at its separation from the board, the separation of the screen can be stabilized.
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