Abstract: Manufacturing a semiconductor memory by first forming a first insulating layer covering a conductive pad. Next forming and pattering a bit line conductive layer and a second insulating layer to expose a part of the first insulating layer. A third insulating layer covering the exposed surfaces of the first insulating layer is formed. Exposing an upper surface of the bit line conductive layer pattern and an upper surface of the third insulating layer. Removing part of the third insulating layer and first insulating layer to expose the conductive pad. Forming a spacer on the side walls of the bit line conductive layer pattern and the first insulating layer. An insulating layer pattern and a second spacer layer are respectively formed on the bit line conductive layer pattern and on a side wall of the first spacer and a conductive plug, which is in contact with the conductive pad is formed.

Abstract: A method of controlling an ink agitator of a wet-type electrophotography printer. The method includes the steps of checking and determining the extent of the printer non-usage time during the printer initialization operation, selecting the driving time of the ink agitator according to the extent of the non-usage time from the first step, and driving the ink agitator according to the ink agitator driving time selected at the second step. Here, the printer non-usage time determining step determines whether the non-usage time is a first selection time, a second selection time, or a third selection time and sets a first, second and third ink agitator driving time according to the length of the non-usage time. Accordingly, because the ink agitator is driven according to the non-usage time of the printer, it is able to completely dissolve deposition and lumps of ink even when the non-usage time is substantially long.