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The Difference Between Positive and Negative Photoresist
The Difference Between Positive and Negative Photoresist I think many people may have heard that the old metal body cameras (silver salt photos) have terms such as negative film and positive film. The photoresists used in photolithography also have negative and positive. Negative photoresist will leave a pattern where the light is irradiated, while positive photoresist will leave a pattern where the light is not irradiated. Therefore, for the same [...]