| 摘要 |
PURPOSE:To correctly print in a very short time on a matter to be printed even with protrusions, by a method wherein long protective covers made of an elastic material are loaded on a metal mask so that holes thereof are mated into the protrusions and a printing material is rubbed in by the pressure sliding of a comb-type squeegee along the protective covers. CONSTITUTION:Through holes 3a of a screen printing metal mask 3 are mated into protrusions 2 previously provided on a printed board 1, whereby the screen printing metal mask 3 is laid over the printed board 1. Holes 4a of long protective covers 4 of an elastic material are fitted into the protrusions 2 raised upwards, whereby the protective covers 4 are loaded on the screen printing metal mask 3. Recessed portions 5a of a comb-type squeegee 5 are mated into the protective covers 4 and a soldering paste on the screen printing metal mask 3 is rubbed in due to the pressure-sliding of the squeegee 5 along the protective covers 4. In this manner, the soldering paste is printed in a preset position on the printed board 1 through the printing through holes 3a of the screen printing metal mask 3. At this time, the soldering paste cannot flow into the protective covers 4. |
