S1-3 高密度磁気テープの現状と展望

概要

論文の詳細を見る
With the sole exception of U-matic, home VCR's has always been the pioneer of high density recording. In the recent two decades, the recording bit size per volume has reduced with a constant rate of tenth per decade. The progress owes itself to increased areal density as well as to ever decreasing tape thickness. The increase of the areal density is attributed to 1) the developement of higher output pigments, 2) the improvement in the tribological technology sd well as the film production engineering that has enabled the use of very smooth surface to minimize the spacing loss, 3) the invention of a new layer construction that reduces recording demagnetization. The reduction of the tape thickness is based on the film engineering that has realeized the base films of higher tensile strength. Very recently, such films of high Young's modulus as PEN and ARAMID has successfully been introduced for materials of higher density. The trend forcasts the bit size of 5μm^3 in 1994. The next challenge will be 2μm^3/bit by 2000.
社団法人映像情報メディア学会の論文
1992-07-28