Nano-compact disks with 400 Gbit/in2 storage density fabricated using nanoimprint lithography and read with proximal probe
نویسندگان
چکیده
Nano-compact disks ~Nano-CDs! with 400 Gbit/in topographical bit density ~nearly three orders of magnitude higher than commercial CDs! have been fabricated using nanoimprint lithography. The reading and wearing of such Nano-CDs have been studied using scanning proximal probe methods. Using a tapping mode, a Nano-CD was read 1000 times without any detectable degradation of the disk or the silicon probe tip. In accelerated wear tests with a contact mode, the damage threshold was found to be 19 mN. This indicates that in a tapping mode, both the Nano-CD and silicon probe tip should have a lifetime that is at least four orders of magnitude longer than that at the damage threshold. © 1997 American Institute of Physics. @S0003-6951~97!04047-3#
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