摘要:
An apparatus and method for fabricating a semiconductor device using a 4-way valve with improved purge efficiency by improving a gas valve system by preventing dead volume from occurring are provided. The apparatus includes a reaction chamber in which a substrate is processed to fabricate a semiconductor device; a first processing gas supply pipe supplying a first processing gas into the reaction chamber; a 4-way valve having a first inlet, a second inlet, a first outlet, and a second outlet and installed at the first processing gas supply pipe such that the first inlet and the first outlet are connected to the first processing gas supply pipe; a second processing gas supply pipe connected to the second inlet of the 4-way valve to supply a second processing gas; a bypass connected to the second outlet of the 4-way valve; and a gate valve installed at the bypass.
摘要:
The present invention relates to a method for recovering valuable metals contained in printed circuit boards of waste electronic machine, and more particularly, to a method for recovering valuable metals from waste printed circuit boards by separating several plastic layers laminated using an organic solution and then separating plastic components from metal components using an electrostatic separation process.According to the present invention, it is possible to separate the non-metal containing the plastic components and the metal components from the waste printed circuit boards by separating the several plastic layers laminated via simple pre-process using an organic solvent and obtain the metal recovery ratio of 99.99% via the pre-process and an electrostatic separation process.
摘要:
The present invention relates to a medicine for treating Avellino corneal dystrophy (ACD), and more particularly, to a pharmaceutical composition for treating Avellino corneal dystrophy containing an antibody against TGF-β as an effective ingredient. The pharmaceutical composition of the present invention has an effect of improving symptoms of a patient with severe Avellino corneal dystrophy due to TGF-β induced by exposure to intense light, such as UV etc.
摘要:
A mobile phone having a USB interface and including a main body and a battery pack removably mounted to the main body is provided. The mobile phone includes a USB connector that may be connected to an external device to allow data transmission between the external device and the mobile phone; a holding unit for containing the USB connector and from which the USB connector may be withdrawn; and a housing mounted in the mobile phone and including a flash memory for storing data, and a controller for controlling a data signal of the flash memory through the USB connector.
摘要:
High-voltage MOS transistors with a floated drain-side auxiliary gate are provided. The high-voltage MOS transistors include a source region and a drain region provided in a semiconductor substrate. A main gate electrode is disposed over the semiconductor substrate between the drain region and the source region. A lower drain-side auxiliary gate and an upper drain-side auxiliary gate are sequentially stacked over the semiconductor substrate between the main gate electrode and the drain region. The lower drain-side auxiliary gate is electrically insulated from the semiconductor substrate, the main gate electrode and the upper drain-side auxiliary gate. Methods of fabricating the high-voltage MOS transistors are also provided.
摘要:
The present invention relates to a pharmaceutical composition for the treatment of wounds containing blood plasma or serum and a method for treating wounds effectively by applying said composition to the wound site to normalize the tissue-environment around the site.
摘要:
The present invention relates to an agent for reducing scar formation, which inhibits the scar formation by injecting sodium bicarbonate to the dermis tissue of the wound with a syringe to directly control pH of the wound site, namely, by alkalinizing the wound to inactivate TGF-β. According to the present invention, the agent for reducing scar formation by controlling the wound healing process can be clinically and immediately applied to the treatment of tylosis scar and keloid, etc., and is effective to the treatment of intractable fibrosis diseases. Also, the invention can be widely applied in many ways as an easy tool which can control the action of TGF-β in a living organism.