| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for easily manufacturing a high quality heat insulating stamper at low cost without needing a mechanism and a process needed to improve a mask and film thickness uniformity. SOLUTION: A heat insulating layer made of material having low heat conductivity and high heat resistance is formed by adhering a polyimide sheet 8 closely to a original glass board 1 subjected to first nickel 2a. Prescribed grooves are formed on the original glass board 1. Nickel electroforming is applied to make the heat insulating layer to be prescribed thickness, and the heat insulating layer and all area taken off from the glass original board 1. An inner circumferential part and an outer circumferential part are subsequently struck out by concentric circles with prescribed radiuses to be a sophisticated doughnut-shaped finishing. Thus, a stamper is manufactured.
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