To provide a cream solder printing process which keeps the viscosity of a cream solder at a specified level despite the long waiting period of a cream solder printing device, and a device used for this process.
This cream solder printing process undergoes the following steps: A circuit substrate is carried to a table part for retaining the circuit substrate horizontally and carried out, then the table part is pressed to a spot under a screen with an opening part which matches a pattern of the electrode part of the circuit substrate so that the opening part coincides with the pattern, and the cream solder is printed on the electrode part of the circuit substrate after filling the opening part with the cream solder by moving a printing head over a screen. When the cream solder is not printed for a specified period, the printing head is automatically actuated in a dummy filling fashion under the same conditions as when the circuit substrate is filled with the cream solder. After that, the viscosity of the cream solder is kept at the same level by stirring the cream solder.
| JP5469415 | Parallel detectors such as squeegees and scrapers in screen printing machines |
| JP2003011322 | PRINTER |
| WO/2020/252104 | AUTOMATED PRINTER SMART CART |
NAKAHIRA HITOSHI
NISHIKAWA NOBORU
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