When the subject to be heat treated is an organic thin film with adhesive or thin film printing on vaporization process for diluents which control the viscosity of application or printing materials is placed, and a high temperature treatment process is placed to cause a chemical reaction.

-By incorporating a heat treatment process that is in accordance with the characteristics of the adhesive for the thin film printing, micron accuracy level for the adhesive coatings, and sub-micron level accuracy level are being realized at production lines. The key point for this is the Pre-curing process.

-Walking beam style transfer devices are often used for pre-curing equipment. The number of the pre-curing stages are determined based on the tact time of the production line.

-The mechanism sections such as work push-up and clamping sections that come in contact with printed objects would have large temperature drops due to heat conduction, and likely to cause film thickness variation defects. Therefore, special attention is needed for the designs on these sections.

-In order to achieve such highly accurate printing film thickness, air flow condition around the printed objects during pre-curing process will need to be stabilized, as well as the environment that affect variations of the printing material characteristics such as temperature and humidity will need to be controlled. Therefore, operations by human hands, in many instances, cannot obtain stable film thickness accuracies.