Diamond membrane for x-ray lithography

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Abstract
Diamond membrane for X-ray lithography has been made by magnetically enhanced microwave chemical vapour deposition (CVD) technique, and evaluation of the membrane film has been carried out for various characteristics of X-ray mask requirements. Our diamond membrane has been found to have highly textured (1 1 1) poly crystalline with very little amount of non-diamond contents such as amorphous carbon and graphite, which suggests good mechanical strength, i.e., high durability against SR exposure with long lifetime and high Young's modulus required for accurate pattern positioning. We believe that our diamond membrane is suited for practical use in X-ray lithography.

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