摘要:
A composition of matter for the recording medium of nanometer scale thermo-mechanical information storage devices and a nanometer scale thermo-mechanical information storage device. The composition includes: one or more polyaryletherketone polymers, each of the one or more polyaryletherketone polymers having two terminal ends, each terminal end having two or more phenylethynyl moieties. The one or more polyaryletherketone polymers are thermally cured and the resulting cross-linked polyaryletherketone resin used as the recording layers in atomic force data storage devices.
摘要:
A composition of matter for a recording medium in atomic force data storage devices. The composition includes one or more poly(aryl ether ketone) copolymers, each of the one or more poly(aryl ether ketone) copolymers including (a) a first monomer including an aryl ether ketone and (b) a second monomer including an aryl ether ketone and a hydrogen bonding cross-linking moiety, the moiety capable of forming two or more hydrogen bonds at room temperature, each of the one or more poly(aryl ether ketone) copolymers having two terminal ends, each terminal end having a phenylethynyl moiety. The covalent and hydrogen bonding cross-linking of the poly(aryl ether ketone) oligomers may be tuned to match thermal and force parameters required in read-write-erase cycles.
摘要:
A method of storing information. The method including: applying a layer of one or more poly(aryl ether ketone) copolymers to a substrate and thermally curing the layer to form a resin layer, each of the one or more poly(aryl ether ketone) copolymers comprising (a) a first monomer including an aryl ether ketone and (b) a second monomer including an aryl ether ketone and a hydrogen bonding cross-linking moiety, each of the one or more poly(aryl ether ketone) copolymers having two terminal ends, each terminal end having a phenylethynyl moiety, and bringing a thermal-mechanical probe heated to a temperature of greater than 100° C. into proximity with the resin layer multiple times to induce deformed regions at points in the resin layer, the thermal-mechanical probe heating the points in the resin layer of the resin and thereby writing information in the resin layer.
摘要:
An approach is presented for designing a polymeric layer for nanometer scale thermo-mechanical storage devices. Cross-linked polyaryletherketone polymers are used as the recording layers in atomic force data storage devices, giving significantly improved performance when compared to previously reported cross-linked and linear polymers. The cross-linking of the polyaryletherketone polymers may be tuned to match thermal and force parameters required in read-write-erase cycles.
摘要:
A composition of matter for the recording medium of nanometer scale thermo-mechanical information storage devices and a nanometer scale thermo-mechanical information storage device. The composition includes: one or more polyaryletherketone copolymers, each of the one or more polyaryletherketone copolymers comprising (a) a first monomer including an aryl ether ketone and (b) a second monomer including an aryl ether ketone and a first phenylethynyl moiety, each of the one or more polyaryletherketone copolymers having two terminal ends, each terminal end having a phenylethynyl moiety the same as or different from the first phenylethynyl moiety. The one or more polyaryletherketone copolymers are thermally cured and the resulting cross-linked polyaryletherketone resin used as the recording layer in an atomic force data storage device.
摘要:
The present invention provides data storage devices, systems and methods. An example device includes: a storage medium for storing data in the form of marks; and at least one probe. The probe(s) and storage medium are operable to move relative to each other, with each probe comprising a tip facing the storage medium and having a force creating unit associated thereto. The force creating units are operable to create a force acting between the tip and said storage medium. The data storage device is operable to erase an indentation mark in the storage medium by way of controlling the force creating unit for creating at least one erase force pulse with a force rise time being less than or equal to the order of 1 microsecond.
摘要:
A data storage device comprises a storage medium for storing data in the form of marks and at least one probe for scanning the storage medium. The storage medium may be comprised in a substrate. The probe comprises a cantilever that comprises terminals serving as electrical contacts an being during operation of the probe mechanically fixed to a probe-holding structure, which may be a common frame of the data storage device. A probe further comprises a supporting structure, to which the terminals are mechanically directly coupled or coupled via hinges and which extends away from the terminals. A tip with a nanoscale apex is provided. A beam structure comprises a heating resistor and is attached at ends to the supporting structure. The beam structure is thinned at least in a direction parallel to an axis of the tip compared to an area of the supporting structure abutting the beam structure.
摘要:
A data storage medium is disclosed from which information is reproduced by scanning a surface of the medium with a tip positioned in contact therewith. The medium includes a substrate and a polymer recording surface within which data bit values are determined by the topographical state at the bit location. The polymer contains thermally reversible crosslinkages.
摘要:
Described is a method for reading an array of sensors having a set of row conductors each connected to the sensors in a corresponding row of the array and a set of column conductors each connected to the sensors in a corresponding column of the array such that each sensor is connected between a row conductor and a column conductor. The method comprises: for each row of sensors in the array, performing a read cycle comprising applying an activation pulse to the corresponding row conductor to activate the sensors in the row, applying a reading pulse to the row conductor on expiry of a predetermined time interval from an edge of the activation pulse, and during the reading pulse, detecting, for each sensor in the row, a value dependent on a variable characteristic of that sensor. The read cycle for at least one row is commenced during the predetermined time interval of the read cycle for another row. In a preferred example described in detail, the sensors are thermal resistance sensors, the activation pulse is a heating pulse to heat the sensors, and the variable characteristic is resistance.
摘要:
The storage unit comprises an array of tunnel tips (13) arranged at tunneling distance from a recording surface (2a) of a storage medium (2) which is capable of permitting digital information to be written or read through variations of the tunneling current. The storage medium (2) is attached to the free end of a piezoceramic bendable tube (3). In operation, the free end of the tube (3) is moved in a circular orbit by repetitive sequential energization of oppositely arranged pairs of 90.degree. phase shifted electrodes (4,6 and 5,7). This tube movement causes each tunnel tip (13) to scan a respective unique associated annular area of the storage medium (2). To address a particular concentric track in a particular annular area, tunneling current is applied to the associated tip (13) via respective electrodes (16,18) while, concurrently, a potential is applied via electrodes (4,6 and 5,7) to tube (3) of a magnitude corresponding to the desired orbital diameter for the tube.