Patent application number | Description | Published |
20100255344 | METHOD OF MANUFACTURING THIN FILM DEVICE AND THIN FILM DEVICE MANUFACTURED USING THE SAME - There is provided a method of manufacturing a thin film device and a thin film device manufactured using the same. The method includes forming a sacrificial layer using a first oxide having a perovskite structure on a preliminary substrate; forming an electrode layer using a second oxide having a perovskite structure on the sacrificial layer; forming a thin film laminate on the electrode layer; bonding a permanent substrate onto the thin film laminate; decomposing the sacrificial layer by irradiating a laser onto the preliminary substrate; and separating the preliminary substrate from the electrode layer. During a laser lift-off process, degradation of properties caused by oxygen diffusion can be prevented. Since the electrode layer has thermal conductivity lower than an existing metal electrode, heat emission can be considerably reduced and the sacrificial layer can be easily decomposed by heat accumulation. Therefore, a thin film device having excellent properties can be manufactured. | 10-07-2010 |
20120037588 | Piezoelectric sealing cap and assembly including the same - Disclosed herein is a piezoelectric sealing cap, including: a piezoelectric element generating displacement by a driving voltage; and a sealing part formed to surround the piezoelectric element and sealing a bottle neck when the piezoelectric element is inserted into the bottle neck. | 02-16-2012 |
20120038470 | Haptic feedback device and electronic device having the same - There is provided a haptic feedback device and an electronic device having the same. The haptic feedback device includes a display panel receiving contact pressure applied thereto; an actuator generating vibrations so as to give different types of haptic feedback according to a change in the contact pressure applied to the display panel; a support plate supporting the actuator; a bonding portion provided between an end portion of the actuator in a lengthwise direction thereof and the support plate so as to fix the actuator to the support plate; and a vibration space expanding portion formed to be recessed in a portion of the support plate corresponding to the actuator. | 02-16-2012 |
20120038471 | Haptic feedback actuator, haptic feedback device and electronic device - There is provided a haptic feedback actuator, a haptic feedback device and an electronic device. The haptic feedback actuator includes a support plate disposed in a lower portion of a haptic device; one or more actuators disposed on the support plate, each having one end towards a central portion of the support plate and the other end towards a corner of the support plate, and generating vibrations so as to give different types of haptic feedback according to a change in contact pressure applied to the haptic device; and one or more dividing portions, each penetrating the support plate in a thickness direction thereof and dividing the support plate into vibration areas corresponding to the respective actuators. | 02-16-2012 |
20120038969 | ELECTRONIC PAPER DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME - There are provided an electronic paper display device and a method for manufacturing the same. The electronic paper display device includes a first substrate having a first electrode made of transparent material and formed thereon; a second substrate arranged opposite to the first substrate with a predetermined space and having a second electrode formed thereon; a display element layer formed between the first substrate and the second substrate and having a plurality of display elements arranged thereon, the display elements having optical characteristics changed by voltage applied to the first and second electrodes; and vibration parts formed on the first substrate or the second substrate and configured to apply vibrations to the display elements by the voltage applied to the first and second electrodes. | 02-16-2012 |
20120112607 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC ACTUATOR INCLUDING THE SAME - Disclosed are a ceramic composition for a piezoelectric actuator and a piezoelectric actuator including the same. The ceramic composition for a piezoelectric actuator includes piezoelectric ceramic powder expressed by a chemical formula, (1−x)Pb(Zr | 05-10-2012 |
20120169183 | CERAMIC COMPOSITION FOR PIEZOELECTRIC ACTUATOR AND METHOD OF MANUFACTURING THE SAME, AND PIEZOELECTRIC ACTUATOR MANUFACTURED BY USING THE SAME - There are provided a ceramic composition for a piezoelectric actuator allowing for low-temperature sintering and a method of manufacturing the same, and a piezoelectric actuator. A Cuo powder and an MnO powder as an sintring additive are added to a PZT-PZN piezoelectric ceramic powder to allow low-temperature sintering at a temperature of 950° C. or lower, and the usage of high-priced palladium (Pd) used as materials for high-temperature inner electrodes is decreased due to lowering of the sintering temperature, and thereby to achieve cost reduction. | 07-05-2012 |
20130134835 | ULTRASONIC SENSOR AND MANUFACTURING METHOD THEREOF - There is provided an ultrasonic sensor including: a piezoelectric vibration element; and a capacitor integrally formed with the piezoelectric vibration element. | 05-30-2013 |
20140151825 | GIANT MAGNETO-RESISTIVE SENSOR AND MANUFACTURING METHOD THEREOF - Disclosed herein are a giant magneto-resistive sensor including a free layer stacked on a substrate and having a rotatable magnetic moment; a ferromagnetic fixed layer having a magnetic moment; a pin layer disposed neighboring the fixed layer; and a spacer layer disposed between the free layer and the fixed layer and having a roughness in an interface contacting the fixed layer, and a method of manufacturing the giant magneto-resistive sensor. | 06-05-2014 |
20140167749 | HALL SENSOR AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are a Hall sensor and a method of manufacturing the Hall sensor. The Hall sensor includes: a flexible substrate in which a groove is formed; a magnetic field flux concentrator formed in the groove of the flexible substrate; an electrode that is patterned to contact the magnetic field flux concentrator; a passivation layer formed around the electrode; and a sensor layer stacked on the passivation layer. | 06-19-2014 |
20140187676 | EPOXY RESIN COMPOSITION FOR SEALING GEOMAGNETIC SENSOR MODULE, AND GEOMAGNETIC SENSOR MODULE SEALED WITH THE COMPOSITION - The present invention provides an epoxy resin composition for sealing a geomagnetic sensor module, including: an epoxy resin; a curing agent; and a phase change material, and provides a geomagnetic sensor module sealed with the epoxy resin composition. The present invention is advantageous in that a geomagnetic sensor can be maintained at a predetermined temperature because a sealing material including a phase change material is used. | 07-03-2014 |
20140217525 | METHOD OF IMPROVING SENSITIVITY OF TERRESTRIAL MAGNETISM SENSOR AND APPARATUS USING THE SAME - Disclosed herein are a method of improving sensitivity of a terrestrial magnetism sensor and an apparatus using the same. A method of forming a terrestrial magnetism sensor includes: cleaning a surface of the terrestrial magnetism sensor; and depositing a thermoelectric material as a thin film on the cleaned surface of the terrestrial magnetism sensor. Therefore, a sensing error of the terrestrial magnetism sensor that has been generated due to heat in the prior art is decreased, thereby making it possible to allow the terrestrial magnetism sensor to calculate an accurate sensing value. | 08-07-2014 |
20140346929 | PIEZOELECTRIC VIBRATION MODULE AND VIBRATION GENERATING APPARATUS INCLUDING THE SAME - There are provided a piezoelectric vibration module and a vibration generating apparatus including the same. The piezoelectric vibration module includes: a piezoelectric actuator including a piezoelectric element deformed in both a first direction and a second direction perpendicular to the first direction through the application of electrical power thereto; at least one first rod transferring deformation force of the piezoelectric actuator in the first direction; at least one second rod converting deformation force of the piezoelectric actuator in the second direction into deformation force in the first direction and transferring the converted deformation force; and a mass body connected to the first and second rods and disposed on the piezoelectric actuator so that displacement is generated in the first direction. | 11-27-2014 |
20140347283 | HAPTIC FEEDBACK ACTUATOR MODULE AND ELECTRONIC DEVICE INCLUDING THE SAME - There is provided a haptic feedback actuator module including: a base member including an insertion groove formed in an edge thereof and communications grooves formed at both ends of the insertion groove; a piezoelectric element inserted into the insertion groove; an impact transferring member installed in the communications groove and contacting a display panel or spaced apart from the display panel during deformation of the piezoelectric element; and a connecting member having one end connected to the piezoelectric element and the other end connected to the impact transferring member. | 11-27-2014 |
20140368091 | INTERNAL ELECTRODE FOR PIEZOELECTRIC DEVICE, PIEZOELECTRIC DEVICE INCLUDING THE SAME, AND METHOD FOR MANUFACTURING PIEZOELECTRIC DEVICE - There is provided a piezoelectric device, including: a multilayered body in which a piezoelectric layer having a first internal electrode formed thereon and a piezoelectric layer having a second internal electrode formed thereon are alternately formed; a first insulating via formed in the first internal electrode layer; a second insulating via formed in the second internal electrode layer; a first conductive via formed in the multilayered body and penetrating through the first insulating via; and a second conductive via formed in the multilayered body and penetrating through the second insulating via, wherein a diameter of the first insulating via is larger than a diameter of the first conductive via, and a diameter of the second insulating via is larger than a diameter of the second conductive via. | 12-18-2014 |
20150028726 | PIEZOELECTRIC SHEET, PIEZOELECTRIC DEVICE INCLUDING THE SAME, AND METHOD OF FABRICATING PIEZOELECTRIC DEVICE - There is provided a piezoelectric device, including a laminated body in which a plurality of piezoelectric sheets including a first piezoelectric substance having a single crystal structure and a second piezoelectric substance having a polycrystalline structure are laminated, first and second internal electrodes interposed between the piezoelectric sheets and alternating so as to have different polarities in a laminated direction, and first and second external electrodes formed on one surface of the laminated body to be electrically connected to the first and second internal electrodes, wherein the first piezoelectric substance has an aspect ratio (d/l) of 1/8 to 1/4. | 01-29-2015 |
20150048720 | PIEZOELECTRIC ACTUATOR MODULE AND METHOD OF MANUFACTURING THE SAME - Disclosed herein are a piezoelectric actuator module and a method of manufacturing the same. The piezoelectric actuator module includes: a plate; a piezoelectric element disposed on the plate and having a through-hole formed therein; and a feeding wire inserted into the through-hole to apply an external voltage to the piezoelectric element. | 02-19-2015 |