The present invention relates to a master substrate (10) for creating a high- density relief structure, particularly a master substrate (10) for making a stamper for the mass fabrication of optical discs or a master substrate for creating a stamp for micro contact printing, wherein an organic dye layer (12) is provided for creating the high-density relief structure. The present invention further relates to a method for providing a high density relief structure on a master substrate (10) comprising an organic dye layer (12), the method comprising the following steps: applying dye bleaching laser pulses on regions (30) of the master substrate (10) where pits (32) are to be formed; and removing the bleached regions (30) of the organic dye layer (12) by an etching process. The present invention also relates to a method for providing a high density relief structure on a master substrate (10), the method comprising the following steps: - providing a master substrate (10) comprising at least a polycarbonate layer (14) carrying an organic dye layer (12); forming bumps (20) at the dye/polycarbonate interface (16) by applying laser pulses; and removing the remaining dye layer by an etching process.
申请公布号
WO2006072857(A3)
申请公布日期
2006.10.05
申请号
WO2005IB54368
申请日期
2005.12.21
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;MEINDERS, ERWIN, R.;BOUWMANS, HINKE, S., P.