摘要:
In a method of forming a pattern structure, a cut-off portion of the node-separated line of a semiconductor device is formed by a double patterning process by using a connection portion of the sacrificial mask pattern and the mask pattern to thereby improve alignment margin. The alignment margin between the mask pattern and the sacrificial mask pattern is increased to an amount of the length of the connection portion of the sacrificial mask pattern. The lines adjacent to the node-separated line include a protrusion portion protruding toward the cut-off portion of the separated line.
摘要:
In a method of forming a pattern structure, a cut-off portion of the node-separated line of a semiconductor device is formed by a double patterning process by using a connection portion of the sacrificial mask pattern and the mask pattern to thereby improve alignment margin. The alignment margin between the mask pattern and the sacrificial mask pattern is increased to an amount of the length of the connection portion of the sacrificial mask pattern. The lines adjacent to the node-separated line include a protrusion portion protruding toward the cut-off portion of the separated line.
摘要:
Flash memories and methods of manufacturing the same provide at least one resistance pattern on a gate pattern, and are capable of increasing a process margin in the semiconductor fabrication process. Gate patterns and bit line patterns are sequentially formed in a cell array region and a peripheral circuit region of a semiconductor substrate. A bit line interlayer insulating layer is disposed to cover the bit line patterns. At least one resistance pattern is disposed on the bit line interlayer insulating layer in the cell array region of the semiconductor substrate. A planarized interlayer insulating layer is formed on the bit line interlayer insulating layer to cover the resistance pattern. Interconnection lines such as metal interconnection lines are formed on the planarized interlayer insulating layer in the cell array region and the peripheral circuit region of the semiconductor substrate.
摘要:
In an embodiment, a memory device includes a semiconductor substrate having cell active regions and a peripheral active region. Plugs, including bit line contact plugs, a common source line, a peripheral gate interconnection contact plug, and peripheral metal interconnection contact plugs are formed of the same conductive layer through the same process. Also, metal interconnections including bit lines, a cell metal interconnection, a peripheral gate interconnection, and peripheral metal interconnections directly connected to the plugs may be formed of the same metal layer through the same process. Accordingly, the interconnection structure such as the plugs and the metal interconnections is simplified and thus the process of their formation is simplified.
摘要:
In an integrated circuit device and method of manufacturing the same, a resistor pattern is positioned on a device isolation layer of a substrate. The resistor pattern includes a resistor body positioned in a recess portion of the device isolation layer and a connector making contact with the resistor body and positioned on the device isolation layer around the recess portion. The connector has a metal silicide pattern having electric resistance lower than that of the resistor body at an upper portion. A gate pattern is positioned on the active region of the substrate and includes the metal silicide pattern at an upper portion. A resistor interconnection is provided to make contact with the connector of the resistor pattern. A contact resistance between the connector and the resistor interconnection is reduced.
摘要:
In an integrated circuit device and method of manufacturing the same, a resistor pattern is positioned on a device isolation layer of a substrate. The resistor pattern includes a resistor body positioned in a recess portion of the device isolation layer and a connector making contact with the resistor body and positioned on the device isolation layer around the recess portion. The connector has a metal silicide pattern having electric resistance lower than that of the resistor body at an upper portion. A gate pattern is positioned on the active region of the substrate and includes the metal silicide pattern at an upper portion. A resistor interconnection is provided to make contact with the connector of the resistor pattern. A contact resistance between the connector and the resistor interconnection is reduced.
摘要:
In an embodiment, a memory device includes a semiconductor substrate having cell active regions and a peripheral active region. Plugs, including bit line contact plugs, a common source line, a peripheral gate interconnection contact plug, and peripheral metal interconnection contact plugs are formed of the same conductive layer through the same process. Also, metal interconnections including bit lines, a cell metal interconnection, a peripheral gate interconnection, and peripheral metal interconnections directly connected to the plugs may be formed of the same metal layer through the same process. Accordingly, the interconnection structure such as the plugs and the metal interconnections is simplified and thus the process of their formation is simplified.
摘要:
Provided is a nonvolatile memory device including a common source. The device includes a first active region crossing a second active region, a common source disposed in the second active region, and a source conductive line disposed on the common source in parallel to the common source. The source conductive line is electrically connected to the common source.
摘要:
A nonvolatile semiconductor memory cell array is shown which is composed of a plurality of unit cell-arrays arranged in a repeating pattern. Each of the unit cell-arrays includes a first plurality of cell transistors having control gates coupled in common to a first word line and a second plurality of cell transistors having control gates coupled in common to a second word line. The two word lines are arranged in parallel to one another and perpendicular to a bit line. The bit line is connected in common with drains of both the first and second plurality of cell transistors through a bit line contact. A pair of source lines is arranged along each side of the bit line and parallel to the bit line. Each source line is coupled to one transistor from each of the first and second pluralities of cell transistors through a source line contact.
摘要:
Methods of forming EEPROM memory cells having uniformly thick tunnelling oxide layers include the steps of forming a preliminary field oxide isolation region of first thickness at a face of a semiconductor substrate of first conductivity type (e.g., P-type) and then forming a tunneling oxide layer on the face, adjacent the preliminary field oxide isolation region. The memory cell's drain region dopants are then implanted through the preliminary field oxide isolation region and into the substrate to form a preliminary drain region of second conductivity type. The preliminary field oxide isolation region is then grown to a second thickness greater than the first thickness by oxidizing the portion of the substrate containing the implanted dopants, to form a final field oxide isolation region which may have a thickness of about 2000 .ANG.. To prevent unwanted growth of the tunnelling oxide layer, a silicon nitride layer is preferably patterned on the tunnelling oxide layer and used as an oxidation mask during the step of growing the preliminary field oxide isolation region to a second thickness. The silicon nitride mask is then removed and then a floating gate electrode and insulated control electrode are patterned on the tunnelling oxide layer and channel region to complete the memory cell.