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1.涂布聚酰胺酸时,从冰箱取出的聚酰胺酸一定要放置到室温才可开盖使用,否则将吸水变白.另外烘干的硅片也得保持室温下进行涂布.2.四甲基氢氧化铵要及时配制,不宜长时间存放,否则四甲基氢氧化铵将吸收二氧化碳形成盐,使其碱性减弱,延长了腐蚀时间,使图形变形,影响窗口质量.如果腐蚀过程发现四甲基氢氧化铵腐蚀能力减弱,可稍加些浓四甲基氢氧化被,摇匀即可补救使用.3.光刻胶的厚度也会影响聚酰亚胺薄膜
1. When applying polyamic acid, the polyamic acid removed from the refrigerator must be placed at room temperature before it can be used to open the lid, otherwise the absorbent will become white and the other dried silicones must be kept at room temperature for coating. Tetramethylammonium hydroxide should be formulated in time, should not be stored for a long time, or tetramethylammonium hydroxide will absorb carbon dioxide to form salt, so that its alkaline weakened, extended corrosion time, the deformation of the graphics, affecting the window quality.If the corrosion process Found tetramethylammonium hydroxide corrosion decreased, can be a little more concentrated tetramethyl hydroxide was shaken can be remedial use .3 photoresist thickness will also affect the polyimide film