Allresist 为HF和KOH蚀刻应用提供保护涂层 SX AR-PC 5000/40 已经有几年了历史了。5 μm的胶层能够承受 48% 的氢氟酸溶液高达数小时。用于硅蚀刻的40% 的KOH溶液也不会腐蚀该胶层。然而，保护胶的温度稳定性并不是特别高，在 65 °C 时，会开始熔化，这使得该保护胶不适用于 85 °C下的 KOH 蚀刻应用。
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