In a method of manufacturing a stacked semiconductor device, a seed layer including impurity regions may be prepared. A first insulation interlayer pattern having a first opening may be formed on the seed layer. A first SEG process may be carried out to form a first plug partially filling the first opening. A second SEG process may be performed to form a second plug filling the first opening. A th...

Example embodiments of the present invention relate to an electrode structure, a method of manufacturing the electrode structure, a phase-change memory device having the electrode structure and a method of manufacturing the phase-change memory device. The electrode structure may include a pad, a first insulation layer pattern, a second insulation layer pattern and/or an electrode. The first insula...

A web control system for vinyl house is provided to control a mechanical control system of the vinyl house in a remote place through the Internet by using an electronic circuit. A web control system for vinyl house includes a communication program between an electronic controller and a computer controller. A dip switch uses a relay switch which is able to be controlled by RS232. The web control sy...