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AZ Electronic Materials was acquired by Merck KGaA, Darmstadt, Germany, a leading company for innovative and top-quality high-tech products in the pharmaceutical, chemical and life science sectors. In the United States and Canada the subsidiaries of Merck KGaA, Darmstadt, Germany operate under the umbrella brand EMD.
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AZ Edge Bead Remover

EMD Performance Materials offers a number of high-purity solvents and solvent blends, used as processing aids in a variety of applications.
Among these are a suite of Edge Bead Removers (EBRs), used to remove residual photoresist from substrate surfaces after coating as well as assist in tool cleaning steps such as coater cup rinsing. EBRs also are used to dilute photoresist formulations to lower viscosity.
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