摘要:
A method of fabricating a MOS transistor is provided. According to the method, a rapid thermal anneal is applied to a semiconductor substrate having active regions doped with well impurity ions and channel impurity ions. Thus, during implantation of the well and the channel impurity ions, crystalline defects resulting from the implantation can be cured by the rapid thermal anneal.
摘要:
A first conductive impurity ion is implanted into a semiconductor substrate to form a well area on which a gate electrode is formed. A first non-conductive impurity is implanted into the well area on both sides of the gate electrode to control a substrate defect therein and to form a first precipitate area to a first depth. A second conductive impurity ion is implanted into the well area on both sides of the gate electrode, so that a source/drain area is formed to a second depth being relatively shallower than the first depth. A second non-conductive impurity is implanted into the source/drain area so as to control a substrate defect therein and to form a second precipitate area. As a result, substrate defects such as dislocation, extended defect, and stacking fault are isolated from a P-N junction area, thereby forming a stable P-N junction.
摘要:
A method of manufacturing a self-aligned contact pad for the fabrication of an integrated circuit is disclosed. A plurality of gate structures is formed on the substrate. A first insulating layer is formed over the plurality of gate structures. Then, a second insulating layer is formed over the first insulating layer and filling spaces between the gate structures. Next, a portion of second insulating layer is removed between the gate structures, thereby forming a plurality of contact holes between the gate structures and exposing a portion of the first insulating layer. The exposed portion of the first insulating layer is etched away to form a gate spacer on the sidewalls of the gate structures and exposing surfaces of active regions of the substrate. Finally, the plurality of contact holes are filled with a first conductive layer and the first conductive layer is planarized to form contact pads.
摘要:
A dielectric layer is formed by depositing a first dielectric layer above a semiconductor substrate including recessed regions, etching the first dielectric layer to remove any voids and to lower the aspect ratio of the recessed regions, and depositing a second dielectric layer on the first dielectric layer in the recessed regions. The method is particularly useful when the aspect ratios are high for recessed regions formed between patterns.
摘要:
The present invention provides a multi-level memory device and method of operating the same. The device comprises a memory structure in which a distribution density of resistance levels around its minimum value is higher than that around its maximum value.
摘要:
A phase-change memory device has an oxidation barrier layer to protect against memory cell contamination or oxidation. In one embodiment, a semiconductor memory device includes a molding layer disposed over semiconductor substrate, a phase-changeable material pattern, and an oxidation barrier of electrically insulative material. The molding layer has a protrusion at its upper portion. One portion of the phase-changeable material pattern overlies the protrusion of the molding layer, and another portion of the phase-changeable material pattern extends through the protrusion. The electrically insulative material of the oxidation barrier may cover the phase-changeable material pattern and/or extend along and cover the entire area at which the protrusion of the molding layer and the portion of the phase-change material pattern disposed on the protrusion adjoin.
摘要:
Semiconductor devices having scalable two transistor memory cells, and methods of fabricating the same, are disclosed. The semiconductor devices include a semiconductor substrate having first, second and third isolation layers thereon. The first and second isolation layers are spaced apart to define a first active region therebetween, and the second and third isolation layers are likewise spaced apart to form a second active region therebetween. A cell gate is provided on each active region that includes a gate dielectric layer, a storage node, a multiple tunnel junction barrier and a source layer that are sequentially stacked. The device also includes first and second control lines that surround at least a portion of each sidewall of the cell gates. A dielectric layer may be interposed between the sidewalls of the cell gates and the control line that surrounds it. A data line connects to the cell gates.
摘要:
A non-volatile memory device includes a substrate, an insulating layer on the substrate, and a plurality of serially connected resistive memory cells stacked in the insulating layer such that a first one of the plurality of resistive memory cells is on the substrate and a next one of the plurality of resistive memory cells is on the first one of the plurality of resistive memory cells to define a NAND-type resistive memory cell string. A bit line on the insulating layer is electrically connected to a last one of the plurality of resistive memory cells. At least one of the plurality of resistive memory cells may include a switching device and a data storage element including a variable resistor connected in parallel with the switching device. Related devices and fabrication methods are also discussed.
摘要:
A non-volatile memory device includes a substrate, an insulating layer on the substrate, and a plurality of serially connected resistive memory cells stacked in the insulating layer such that a first one of the plurality of resistive memory cells is on the substrate and a next one of the plurality of resistive memory cells is on the first one of the plurality of resistive memory cells to define a NAND-type resistive memory cell string. A bit line on the insulating layer is electrically connected to a last one of the plurality of resistive memory cells. At least one of the plurality of resistive memory cells may include a switching device and a data storage element including a variable resistor connected in parallel with the switching device. Related devices and fabrication methods are also discussed.
摘要:
A non-volatile memory device includes a substrate, an insulating layer on the substrate, and a plurality of serially connected resistive memory cells stacked in the insulating layer such that a first one of the plurality of resistive memory cells is on the substrate and a next one of the plurality of resistive memory cells is on the first one of the plurality of resistive memory cells to define a NAND-type resistive memory cell string. A bit line on the insulating layer is electrically connected to a last one of the plurality of resistive memory cells. At least one of the plurality of resistive memory cells may include a switching device and a data storage element including a variable resistor connected in parallel with the switching device. Related devices and fabrication methods are also discussed.