Samsung Electro-mechanics Co., Ltd.

Jae-Woo Joung

Young-Seuck Yoo

Kwi-Jong Lee

Byung-Ho Jun

In-Keun Shim

Young-Jae Kim

Won-Chul Sim

Young-Il Lee

Tae-hoon Kim

Ju-Hwan Yang

Joon-Rak Choi

Boum-Seock Kim

Chang-Sung Park

Ro-Woon Lee

Sang-Jin Kim

Young-Soo Oh

Sung-Nam Cho

Hye-Jin Cho

Shang-Hoon Seo

Yoon-Sok Park

Hyun-Chul Jung

Sung-Il Oh

Yoon-Ah Baik

Chung-Mo Yang

Soon-Young Kim

Kwan-Soo Yun

Hyun-Chyl Jung

Ved Prakash Anand

Myung-Joon Jang

Sang-Do Cho

Sung-II Oh

In-Young Kim

Young-Ah Song

Pil-Joong Kang

Tae-Gu Kim

Suk-Ho Song

The present invention relates to a method for manufacturing copper nanoparticles, in particular, to a method for manufacturing copper nanoparticles, wherein the method includes preparing a mixture solution including a copper salt, a dispersing agent, a reducing agent and an organic solvent; raising temperature of the mixture solution up to 30-50&#xb0; C. and agitating; irradiating the mixture solution with microwaves; and obtaining the copper nanoparticles by lowering temperature of the mixture solution. According to the present invention, several tens of nm of copper nanoparticles having a narrow particle size distribution and good dispersibility can be synthesized in mass production.

Method for manufacturing copper nanoparticles using microwaves

A method of processing image data according to an embodiment of the present invention includes: setting a permissible pitch range for a distance between adjacent ink blots; arranging image data for the line pattern in an x-y coordinate system; selecting a first base point corresponding to one side of the image data for the line pattern; selecting a first determination point from the first base point, in which the first determination point is parallel to and separated from one side of the image data for the line pattern; determining whether a distance between the first base point and the first determination point is within the permissible pitch range; and storing a coordinate as print data if the distance between the first base point and the first determination point is within the permissible pitch range, in which the coordinate is located at a shortest distance from the first determination point.

Processing image data

A method of manufacturing an inkjet head includes: forming an inlet and a pressure chamber in an upper substrate, the inlet penetrating the upper substrate and providing a passage for an inflow of ink, and the pressure chamber formed as a recess in one side of the upper substrate; forming a manifold and an ink channel in a middle substrate, the manifold configured to be connected with the inlet, and the ink channel penetrating the middle substrate and configured to be connected with the pressure chamber; forming a straight portion and a nozzle in a plate substrate, the straight portion configured to be connected with the ink channel, and the nozzle connected with the straight portion; forming a hydrophobic layer on one side of the plate substrate, the hydrophobic layer having a window formed therein, and the window opening the nozzle by a circumference greater than a circumference of an end of the nozzle; and stacking in order and attaching the upper substrate, the middle substrate, and the plate substrate.

Method of manufacturing nozzle plate and inkjet head

The present invention relates to an apparatus and a method of manufacturing metal nanoparticles, and more particularly to an apparatus including: a precursor supplying part which supplies a precursor solution of metal nanoparticles; a first heating part which is connected with the precursor supplying part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where any particle is not produced; a second heating part which is connected with the first heating part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where particles are produced; and a cooler which is connected with the second heating part and collects and cools metal nanoparticles produced at the second heating part which allows continuous mass production of metal nanoparticles.

Apparatus and method for manufacturing metal nanoparticles

A method of processing a SOI substrate to form a groove in the SOI substrate in which a silicon layer is stacked on both sides of an oxide layer is disclosed. In accordance with an embodiment of the present invention, the method includes dividing a portion of the silicon layer, in which the groove is to be processed, into a plurality of unit portions, performing dry etching on certain portions of the plurality of divided unit portions such that the oxide layer is exposed and removing remaining portions of the plurality of divided unit portions by removing the oxide layer.

Processing method for SOI substrate

An ink-jet head is disclosed. The ink-jet head can include: a chamber for holding ink, an actuator coupled to one side of the chamber to provide pressure to the chamber, a damper portion connected with the other side of the chamber, an accelerator portion extending from a lateral surface of the damper portion, and a nozzle formed at an end of the accelerator portion. Certain embodiments of the invention can be used to increase the speed at which ink is ejected and improve the straightness of the ejection path.

Ink-jet head

The present invention relates to a method for forming fine wiring comprising: preparing a substrate for a printed circuit board; forming a metal thin sacrificial layer on the substrate using a first metal ink; forming a wiring on the metal thin sacrificial layer by inkjet printing using a second metal ink; and removing a portion of the metal thin sacrificial layer to form a wiring pattern. The method for forming fine wiring according to the invention can improve adhesiveness by using metal thin sacrificial layer and prevent spreading of ink in forming fine wiring.

Method for forming fine wiring

A printed circuit board and a manufacturing method thereof are disclosed. The method of manufacturing a printed circuit board can include: forming surface roughness on an insulation layer, coating a chemical compound onto the insulation layer that lowers the surface energy of the insulation layer, and forming a circuit pattern by inkjet printing on the insulation layer coated with the chemical compound. Certain embodiments of the invention can be utilized to improve adhesive strength between the insulation layer and the inkjet-printed circuit patterns, suppress spreading in the inkjet-printed circuit patterns to improve resolution, and reduce manufacturing costs by forming the circuits using inkjet printing.

Method of manufacturing a printed circuit board

The present invention relates to a reducing agent for low temperature reducing and sintering of copper nanoparticles and a method for low temperature sintering using the same. The reducing agent includes formic acid or acetic acid and C1 to C3 alcohol or ether which allows reducing and sintering at a low temperature of less than 250&#xb0; C. The sintered copper nanoparticles provide excellent electrical properties and are suitable for forming fine wirings patterns.

Reducing agent for low temperature reducing and sintering of copper nanoparticles

A method of manufacturing an ink-jet head is disclosed. The method in accordance with an embodiment of the present invention includes: forming a dividing groove such that one surface of a piezoelectric element is divided corresponding to the position of the chamber; filling the dividing groove with a filler; bonding one surface of the piezoelectric element to one surface of the ink-jet head in which the chamber is formed; and polishing the other surface of the piezoelectric element such that the filler is exposed.

Method of manufacturing ink-jet head

A method for surface modification of non-dispersible metal nanoparticles comprises mixing metal nanoparticles having an amorphous carbon layer on the surface with an alcohol or thiol solvent, mixing a capping molecule having a carboxylic head group in the mixed solution, and separating the metal nanoparticles from the mixed solution and the metal nanoparticles for inkjet printing thus modified.

Methods for surface modification of non-dispersible metal nanoparticles and modified metal nanoparticles for inkjet by the same method

Disclosed are a solar cell and a manufacturing method thereof. The solar cell in accordance with an embodiment of the present invention includes: a substrate having a plurality of holes formed on one surface thereof; a metal layer formed on an inner wall of the hole and on one surface of the substrate; a p-type semiconductor coated on the metal layer; an n-type semiconductor formed inside the hole and on one surface of the substrate; a transparent conductive oxide formed on the n-type semiconductor; and an electrode terminal formed on the p-type semiconductor and on the transparent conductive oxide.

Solar cell and manufacturing method thereof

An inkjet head module and a method of aligning inkjet heads using the inkjet head module are disclosed. The inkjet head module can include a frame, which can be attached to and detached from an inkjet apparatus; a multiple number of heads, which may be coupled to the frame, and which may each have at least one nozzle formed for ejecting ink; a multiple number of support racks, each of which may be interposed between the frame and a head, and which may support the head such that the head is movable in relation to the frame; and a multiple number of piezoelectric motors, which may move the heads to align the heads in relation to one another. Certain embodiments of the invention make it possible to reduce the size of the overall inkjet apparatus, as well as to align a multiple number of inkjet heads with higher precision.

Inkjet head module and method of aligning inkjet head using the same

Disclosed are an ink-jet head and a method of manufacturing the ink-jet head including a plurality of chambers, a membrane covering the plurality of chambers, and a plurality of actuators separated from one another by a virtual dividing line on the membrane such that pressure is applied to each of the plurality of chambers. The method in accordance with an embodiment of the present invention includes: forming a groove at a position on one surface of the membrane, the position corresponding to the position of the dividing line; bonding a piezoelectric member to the one surface of the membrane having the groove formed therein by using adhesive resin; and dividing the piezoelectric member such that the groove is exposed.

Ink-jet head and manufacturing method thereof

Disclosed is an inkjet printer. The inkjet printer in accordance with an embodiment of the present invention includes a supply channel coupled to a plurality of inkjet heads; a first main reservoir and a second main reservoir being coupled to either side of the supply channel; and a first press and a second press applying pressure to the inside of the first main reservoir and the second main reservoir, respectively.

Growing community of inventors

Suwon-si, South Korea

Jae-Woo Joung