Patent application number | Description | Published |
20080204684 | PROCESS AND APPARATUS FOR ULTRAVIOLET NANO-IMPRINT LITHOGRAPHY - A process and an apparatus for performing a UV nano-imprint lithography are provided. The process uses a polymer pad which allows a uniform application of pressure to a patterned template and an easy removal of a residual resin layer. The apparatus includes a tilt and decentering corrector which allows an accurate alignment of layers during the nano-imprint lithography process. | 08-28-2008 |
20080219045 | Semiconductor memory device and magneto-logic circuit - Provided are a semiconductor memory device and a magneto-logic circuit which change the direction of a magnetically induced current according to a logical combination of logic states of a plurality of input values. The semiconductor memory device comprises a current driving circuit, a magnetic induction layer, and a resistance-variable element. The current driving circuit receives a plurality of input values and changes the direction of a magnetically induced current according to a logical combination of logic states of the input values. The magnetic induction layer induces magnetism having a direction varying according to the direction of the magnetically induced current. The resistance-variable element has a resistance varying according to the direction of the magnetism induced by the magnetic induction layer. | 09-11-2008 |
20080232225 | 90°-BENT METALLIC WAVEGUIDE HAVING TAPERED C-SHAPED APERTURE, METHOD OF FABRICATING THE WAVEGUIDE, LIGHT DELIVERY MODULE INCLUDING THE WAVEGUIDE, AND HEAT ASSISTED MAGNETIC RECORDING HEAD HAVING THE WAVEGUIDE - A metallic wave guide and a light delivery module are provided. The metallic waveguide includes a metal body formed of a conductive metal and having an aperture formed therethrough, the aperture having input and output ends. The aperture has a bent portion for changing a light traveling direction between the input and output ends, and a tapered portion between the bent portion and the output end. The tapered portion has a width that is gradually reduced toward the output end, and the aperture is formed in a C-shape by a ridge formed on an inner surface of the metal body. | 09-25-2008 |
20080247085 | FERROELECTRIC HARD DISK SYSTEM - A ferroelectric hard disk device is provided and includes: a ferroelectric media having a bottom electrode and a ferroelectric layer disposed on the bottom electrode; and a head formed above the ferroelectric media, the head being operative to write and reproduce information on the ferroelectric layer. | 10-09-2008 |
20090002875 | MAGNETIC RECORDING MEDIUM AND METHOD OF FABRICATING THE SAME - A magnetic recording medium and a method of fabricating the same are provided. The magnetic recording medium in which a position for magnetic recording is patterned with a magnetic material, includes a magnetic recording layer which includes a data area having a plurality of data tracks, and a servo area having a servo burst for following the data tracks, wherein the servo burst includes a plurality of bursts disposed in a zigzag structure along a downtrack direction, and each of the bursts includes a plurality of burst pieces having different coercivities from each other. The magnetic recording medium is subjected to two servo-recording processes, so that a signal similar to an alternative signal written in a burst having a burst pattern used in a related art continuous medium can be obtained. | 01-01-2009 |
20090009903 | METHOD OF INCREASING RECORDING DENSITY OF HARD DISC DRIVE AND CONTROLLING DEVICE THEREOF - Provided is a method of increasing recording density and a control apparatus for increasing the recording density. The method includes applying a recording current corresponding to a recording signal to a magnetic head of a hard disc drive (HDD), and limiting a current value being applied to the magnetic head to a critical value when the recording current reaches the critical value. In the method, a rising time is reduced by using an overshoot recording current and the recording current is limited to a critical value when an actual recording current reaches the critical value. Thus, write track widths (WTWs) can be reduced at a low recording frequency, thereby increasing tracks per inch (TPI). | 01-08-2009 |
20090011282 | MAGNETIC RECORDING MEDIUM, HARD DISK DRIVE EMPLOYING THE SAME, AND METHOD OF MEASURING WRITE READ OFFSET OF THE HARD DISK DRIVE - A magnetic recording medium, a hard disk drive (HDD) employing the same, and a method of measuring a write read (WR) offset of the HDD are provided. The magnetic recording medium includes a disk substrate and a magnetic recording layer formed on one or both surfaces of the disk substrate, wherein the magnetic recording layer comprises: at least one pattern area patterned into a plurality of data tracks wherein the at least one pattern area is formed of a patterned magnetic substance; and at least one continuous area formed of a continuous magnetic substance, wherein the continuous area is used to measure a WR offset. Accordingly, the HDD employing the magnetic recording medium can correct the WR offset of the magnetic head without requiring large modifications. | 01-08-2009 |
20090029298 | METHOD OF MANUFACTURING PATTERNED MAGNETIC RECORDING MEDIUM - Provided is a method of manufacturing a patterned magnetic recording medium. The method includes (a) forming a patterned recording layer on an underlayer of a first substrate; (b) coating a polymer layer on a surface of a second substrate; (c) transferring the polymer layer on the patterned recording layer; and (d) exposing the surface of the patterned recording layer. | 01-29-2009 |
20090061035 | DUAL-SIDE IMPRINTING LITHOGRAPHY SYSTEM - Provided is a dual-side imprinting lithography system that includes a medium supporting unit that supports a medium wherein both surfaces of the medium are coated with a ultraviolet (UV) hardening resin; a first mold supporting unit and a second mold supporting unit that respectively support a first mold and a second mold, disposed respectively above the medium supporting unit and under the medium supporting unit; a vertical moving device that moves vertically at least one of the medium supporting unit, the first mold supporting unit, and the second mold supporting unit; a first UV radiating device that is installed above the first mold supporting unit to radiate UV rays; and a second UV radiating device that is installed under the second mold supporting unit to radiate UV rays. | 03-05-2009 |
20100132174 | METHOD OF MANUFACTURING FILM BULK ACOUSTIC RESONATOR USING INTERNAL STRESS OF METALLIC FILM AND RESONATOR MANUFACTURED THEREBY - A method of manufacturing a film bulk acoustic resonator and the resonator manufactured thereby. The method includes the laminating a sacrificial layer on a semiconductor substrate, removing a predetermined area from the sacrificial layer to realize electric contact between a signal line of the semiconductor substrate and a lower electrode, forming the lower electrode by depositing metal film for lower electrode on the sacrificial layer, by patterning based on a shape of the sacrificial layer, forming a piezoelectric layer by depositing a piezoelectric material on the lower electrode and by patterning based on a shape of the lower electrode, and forming an upper electrode by depositing metal film on the piezoelectric layer and by patterning based on a shape of the piezoelectric layer, wherein at least one of a deposition pressure and a deposition power is controlled to generate upward stress when depositing the metal film for the lower electrode. | 06-03-2010 |
20100197064 | SILICON-BASED RF SYSTEM AND METHOD OF MANUFACTURING THE SAME - A RF system which includes a silicon substrate formed with at least one via-hole filled with conductive material so that both sides of the silicon substrate are electrically connected with one another; at least one flat device formed on one side of the silicon substrate; and at least one RF MEMS device formed on the other side of the silicon substrate. | 08-05-2010 |
20110207240 | Information storage devices using movement of magnetic domain walls and methods of manufacturing the same - An information storage device using movement of magnetic domain walls includes a writing magnetic layer having a magnetic domain wall. A stack structure is formed on the writing magnetic layer. The stack structure includes a connecting magnetic layer and an information storing magnetic layer stacked sequentially. The information storage device also includes a reader for reading information stored in the information storing magnetic layer. | 08-25-2011 |
20110223279 | NANO IMPRINT MASTER AND METHOD OF MANUFACTURING THE SAME - A nano imprint master and a method of manufacturing the same are provided. The method includes: implanting conductive metal ions into a substrate including quartz to form a conductive layer inside the quartz substrate; coating a resist on the quartz substrate in which the conductive layer is formed, to form a resist coating layer; exposing the resist coating layer to an electron beam to form micropatterns; etching the quartz substrate by using the resist coating layer, in which the micropatterns are formed, as a mask; and removing the resist coating layer to obtain a master in which micropatterns are formed. | 09-15-2011 |
20120056355 | PROCESS AND APPARATUS FOR ULTRAVIOLET NANO-IMPRINT LITHOGRAPHY - A process and an apparatus for performing a UV nano-imprint lithography are provided. The process uses a polymer pad which allows a uniform application of pressure to a patterned template and an easy removal of a residual resin layer. The apparatus includes a tilt and decentering corrector which allows an accurate alignment of layers during the nano-imprint lithography process. | 03-08-2012 |
20120267703 | Information Storage Medium Using Nanocrystal Particles, Method of Manufacturing the Information Storage Apparatus Including the Information Storage Medium - Provided is an information storage medium using nanocrystal particles, a method of manufacturing the information storage medium, and an information storage apparatus including the information storage medium. The information storage medium includes a conductive layer, a first insulating layer formed on the conductive layer, a nanocrystal layer that is formed on the first insulating layer and includes conductive nanocrystal particles that can trap charges, and a second insulating layer formed on the nanocrystal layer. | 10-25-2012 |
20120294137 | FERROELECTRIC READ HEAD - An apparatus can include a read head formed in a semiconductor layer of an air bearing surface, the read head comprising a channel region formed between a source and drain which are doped to a higher conductivity than the channel region; wherein the channel region is configured to generate a charge carrier depletion region in response to a first ferroelectric dipole direction, and to accumulate charge carriers in response to a second ferroelectric dipole direction. | 11-22-2012 |
20130064918 | Apparatus comprising substrate and conductive layer - A nano imprint master and a method of manufacturing the same are provided. The method includes: implanting conductive metal ions into a substrate including quartz to form a conductive layer inside the quartz substrate; coating a resist on the quartz substrate in which the conductive layer is formed, to form a resist coating layer; exposing the resist coating layer to an electron beam to form micropatterns; etching the quartz substrate by using the resist coating layer, in which the micropatterns are formed, as a mask; and removing the resist coating layer to obtain a master in which micropatterns are formed. | 03-14-2013 |
20140004325 | APPARATUS COMPRISING SUBSTRATE AND CONDUCTIVE LAYER | 01-02-2014 |
20140061975 | Process and Apparatus for Ultraviolet Nano-Imprint Lithography - A process and an apparatus for performing a UV nano-imprint lithography are provided. The process uses a polymer pad which allows a uniform application of pressure to a patterned template and an easy removal of a residual resin layer. The apparatus includes a tilt and decentering corrector which allows an accurate alignment of layers during the nano-imprint lithography process. | 03-06-2014 |