In the wet process of photovoltaic cell manufacturing, bubble marks represent a seemingly minor yet persistent issue that can significantly impact final cell efficiency and mass production yield. Not only do they directly compromise the appearance of the cells, but they may also become potential risk points leading to localized performance degradation and reduced module reliability. This is a key bottleneck in process optimization that urgently requires systematic resolution.
This article will provide an in-depth analysis of this challenge. Starting from the definition and impact mechanism of bubble marks, the report systematically reveals their formation and evolution logic across three core process stages: reaction, cleaning, and drying. We not only offer targeted solutions for each stage but also aim to build for you a comprehensive bubble mark prevention and control system covering the entire wet process, fundamentally enhancing process stability and product consistency.
Whether you are an engineer facing specific production line issues or a technical manager focused on process optimization and quality improvement, this report will provide a clear, actionable analytical framework and practical guidance.

















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