摘要:
A method for forming a wire line by a damascene process includes forming a first insulating layer on a semiconductor substrate, etching the first insulating layer to form a contact hole, and forming a first conductive layer over the first insulating layer that fills the contact hole. The first conductive layer is patterned, and a storage node contact is formed that fills the contact hole and is electrically connected to the semiconductor substrate. A hard mask is formed over the storage node contact and the first insulating layer is etched using the hard mask as an etch mask to form a trench in the first insulating layer. A bit line is formed in the trench that is electrically connected to the semiconductor substrate. A second insulating layer is formed that covers the bit line. The second insulating layer and the hard mask are planarized and a storage node of a capacitor is formed on the storage node contact.
摘要:
A semiconductor device includes an insulating layer having a T-shaped groove formed by a wide opening overlapping a narrow opening, a bit line conductive layer that at least partially fills the narrow opening, and a bit line capping layer that fills the groove so that its top surface is as high as that of the insulating layer. Spacers are formed on the inner walls of the wide opening.
摘要:
A semiconductor device including a bit line formed using a damascene technique and a method of fabricating the same. The method includes forming an insulating layer on a substrate, forming a groove by etching the insulating layer to a partial depth, and forming spacers on the inner walls of the groove. An opening is formed by etching the insulating layer disposed under the groove using the spacers as an etch mask. A conductive layer is formed to fill the opening. A capping layer is formed to fill the groove.
摘要:
A capacitor for a semiconductor memory device is fabricated by forming a mold layer on a semiconductor substrate that includes a peripheral circuit area and a cell array area which includes a plug in a buried contact hole. A hard mask layer pattern is formed on the mold layer. The mold layer is etched, using the hard mask layer pattern as an etch mask, to form a mold layer pattern. The hard mask layer pattern is then removed from the mold layer pattern or only partially etched back on the mold layer pattern. A capacitor lower electrode is formed along the walls of the buried contact hole and on a surface of the mold layer pattern. A capacitor dielectric layer is formed on the capacitor lower electrode and a capacitor upper electrode is formed on the capacitor dielectric layer.
摘要:
A semiconductor memory device includes a semiconductor substrate in which a cell region and a core and peripheral region are defined. The device further comprises isolation layers formed in the semiconductor substrate to define active regions, a first gate electrode structure formed in the cell region and a second gate electrode structure formed in the core and peripheral region. Source and drain regions formed in the active regions on respective sides of each of the gate electrode structures and self-aligned contact pads are formed in the cell region in contact with the source and drain regions. An insulating interlayer is formed on the semiconductor substrate between the self-aligned contact pads, and etch stoppers are formed on the insulating interlayer between the self-aligned contact pads in the cell region.
摘要:
An electronic device may include a substrate, a conductive layer on the substrate, and an insulating spacer. The conductive electrode may have an electrode wall extending away from the substrate. The insulating spacer may be provided on the electrode wall with portions of the electrode wall being free of the insulating spacer between the substrate and the insulating spacer. Related methods and structures are also discussed.
摘要:
An apparatus for improving the density and uniformity of plasma in the manufacture of a semiconductor device features a plasma chamber having a complex geometry that causes plasma density to be increased at the periphery or edge of a semiconductor wafer being processed, thereby compensating for a plasma density that is typically more concentrated at the center of the semiconductor wafer. By mounting a target semiconductor wafer in a chamber region that has a cross-sectional area that is smaller than a cross-sectional area of a plasma source chamber region, a predetermine flow of generated plasma from the source becomes concentrated as it moves toward the semiconductor wafer, particularly at the periphery of the semiconductor wafer. This provides a more uniform plasma density across the entire surface of the target semiconductor wafer than has heretofore been available.
摘要:
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.
摘要:
A semiconductor memory device includes a semiconductor substrate in which a cell region and a core and peripheral region are defined. The device further comprises isolation layers formed in the semiconductor substrate to define active regions, a first gate electrode structure formed in the cell region and a second gate electrode structure formed in the core and peripheral region. Source and drain regions formed in the active regions on respective sides of each of the gate electrode structures and self-aligned contact pads are formed in the cell region in contact with the source and drain regions. An insulating interlayer is formed on the semiconductor substrate between the self-aligned contact pads, and etch stoppers are formed on the insulating interlayer between the self-aligned contact pads in the cell region.
摘要:
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.