Semiconductor developer solutions are chemical mixtures used in the photolithography process to develop photoresist patterns on silicon wafers. These solutions selectively remove exposed or unexposed photoresists, depending on the type used. The developer is a chemical solvent that dissolves the photoresist (PR) produced by exposure. The PR in the photolithography process is mainly divided into positive PR and negative PR, so the developer is divided into positive PR developer and negative PR developer. The positive PR developer is usually a strong alkaline solution diluted with water, which is used in the positive PR development process. The negative PR developer is usually an organic solvent, which is used in the negative PR development process.
