Attach the wafer to the blue film: Use a dedicated film sticking machine to gently suction the thinned wafer and then accurately press it onto the center of the blue film to ensure that the wafer adheres smoothly to the film as a whole. During the operation, it is necessary to avoid generating bubbles or particles to prevent affecting the quality of subsequent cutting. The film sticking machine fixes the wafer through a vacuum adsorption system and applies uniform pressure during film sticking.

Heating and curing (depending on the situation): In order to enhance the adhesion between the film and the wafer, some types of blue films need to be subjected to low-temperature heating (such as 40-50 ℃) for a few minutes after being attached, in order to improve the adhesion of the film. Heating and curing are carried out in a dedicated oven, with a uniform temperature distribution within the oven.

Improper installation of film roll: Similar to the problem of winding machine, if the film roll is not installed correctly, it may cause the film material to be unable to be sent out smoothly. For example, problems such as loose or misaligned film roll fixation, reverse installation of film roll direction, and mismatched film core shaft size may all lead to poor film release.

Problems with the film material itself: Abnormal quality or condition of the film material, such as adhesion or wrinkling of the film roll, excessive thickness or hardness of the film material, film roll breakage or untreated joints, may all affect the film release effect.

Stuck of mechanical components for film feeding: Stuck of the mechanical structure of the film frame is a common hardware reason for the inability to produce film, such as dust or foreign objects on the film feeding roller, lack of oil in bearings or gears, and displacement of the film guide frame position.

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