volume 34, issue 15, P1211-1218 1994
DOI: 10.1002/pen.760341507
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Abstract: In injection molding of substrates for optical discs, precise transcription of pits and grooves is very important. For high-density optical discs, molding transcrip tion for minute grooves with widths on the sub-micron level is required. In this paper, in order to clarify the relationship between molding conditions and transcription quantitatively, transcription of minute rectangular grooves (width 0.55 pm. depth 70 nm) in injection molding of polycarbonate resin was studied. The relationship between molding …

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