摘要:
A method of forming a semiconductor device having a strained silicon (Si) layer on a silicon germanium (SiGe) layer is provided. The method includes preparing a silicon substrate. A SiGe layer is formed on the silicon substrate. At least a part of the SiGe layer has a first dislocation density. A strained Si layer having a second dislocation density lower than the first dislocation density is formed on the SiGe layer.
摘要:
A CMOS transistor structure and related method of manufacture are disclosed in which a first conductivity type MOS transistor comprises an enhancer and a second conductivity type MOS transistor comprises a second spacer formed of the same material as the enhancer. The second conductivity type MOS transistor also comprises a source/drain region formed in relation to an epitaxial layer formed in a recess region.
摘要:
An exemplary method of forming a contact hole in a semiconductor device includes: forming a first insulation layer on a lower substrate; forming a first conductive layer on the first insulation layer; forming a second insulation layer on the first insulation layer and the first conductive layer; forming a second conductive layer on the second insulation layer; forming a third insulation layer on the second insulation layer and the second conductive layer; patterning a resist on the third insulation layer using an exposure mask of which transmittance is different at a region over the first conductive layer and at a region over the second conductive layer; and forming a first contact hole and a second contact hole by etching the resist and the third insulation layer such that the first conductive layer and the second conductive layer are exposed.
摘要:
The present invention provides methods of forming contact holes and integrated circuit devices having the same. A conductive plug is formed on a substrate. A first insulating layer is formed on the conductive plug and a second insulating layer is formed on the first insulating layer. The second insulating layer is etched to expose at least a portion of the first insulating layer and the first insulating layer is etched to expose at least a portion of the conductive plug.
摘要:
The present invention relates to alkoxysilane-substituted diene copolymers, organic and inorganic hybrid complex compositions comprising the same and a process for the preparation of the same. The alkoxysilane-substituted diene copolymers are prepared by reacting a diene copolymer substituted by epoxy or hydroxy groups with a silane compound. Thus prepared alkoxysilane-substituted diene copolymer is characterized by the facts that it is in organic solvents and it is capable of being cured at low temperatures. The present invention also relates to a composition prepared by mixing the said copolymer with inorganic fillers and/or coupling agents. The copolymer of the formula (1) has high reactivity with coupling agents since it possesses reactive silane groups and thus provides the diene polymer composition as having improved compatibility with inorganic fillers. In addition, when the copolymer of the formula (1) is added to a sol-gel reactant, a substitution reaction proceeds smoothly even under mild reaction conditions and thus it is possible to introduce the third functional group to copolymer blocks.
摘要:
The operating speed and refresh characteristics of an embedded memory logic device having a silicide layer is improved by excluding the silicide from the source/drain region between access gates and pass gates in a cell array region, thereby reducing leakage current. The source/drain region between access gates and pass gates are also lightly doped to further reduce leakage current. An embedded memory logic device fabricated in accordance with the present invention includes a semiconductor substrate including first and second regions. A first gate electrode is formed over the first region. A first drain region doped with a first impurity is formed in the semiconductor substrate on one side of the first gate electrode, and a first source doped with a second impurity is formed in the semiconductor substrate on the other side of the first gate electrode. A second gate electrode is formed on a second region of the semiconductor substrate, and second source/drain regions doped with a third impurity are formed in the semiconductor substrate on both sides of the second gate electrode. Also, a third gate electrode is formed on the second region of the semiconductor substrate, and third source/drain regions doped with a fourth impurity are formed on both sides of the third gate electrode. Metal silicide layers are formed on the first through third gate electrodes, on the first drain region, and on the second and third source/drain regions.
摘要:
A method is provided for manufacturing a capacitor of a semiconductor device. First, an insulating layer, an etching barrier layer, a first material layer and a second material layer are sequentially stacked on a semiconductor substrate on which a field oxide layer and a gate electrode are formed, and predetermined portions of the stacked layers are sequentially etched to form a contact hole exposing the substrate. Then, a first conductive layer is formed on thge whole surface of the resultant structure having the contact hole. Subsequently, a storage electrode pattern is formed by patterning the first conductive layer and etching the second material layer. Then, a second conductive layer is formed on the whole surface of the resultant structure so as to cover the storage electrode pattern and the first material layer. Thereafter, the second conductive layer is etched to expose the upper surface of the storage electrode pattern. Therefore, the capacitor manufacturing process, particularly, the etching process, is simplified, and can be applied to a capacitor having a COB structure.
摘要:
A manufacturing method for a semiconductor memory device including a capacitor having a double fin-shaped structure is provided, wherein a storage electrode is formed by applying a thick planar material capable of being wet-etched between the double fins consisting of conductive layers. The storage electrode is formed by forming a thin, high temperature oxide film having an etching rate which is great. Thus, the resulting memory cell's topography is improved and damage to the storage electrode is decreased.
摘要:
A semiconductor device comprises a substrate and first and second stress-generating epitaxial regions on the substrate and spaced apart from each other. A channel region is on the substrate and positioned between the first and second stress-generating epitaxial regions. A gate electrode is on the channel region. The channel region is an epitaxial layer, and the first and second stress-generating epitaxial regions impart a stress on the channel region.
摘要:
A memory unit includes a resistive sense memory cell configured to switch between a high resistance state and a low resistance state upon passing a current through the resistive sense memory cell and a semiconductor transistor in electrical connection with the resistive sense memory cell. The semiconductor transistor includes a gate element formed on a substrate. The semiconductor transistor includes a source contact and a bit contact. The gate element electrically connects the source contact and the bit contact. The resistive sense memory cell electrically is connected to the bit contact. The source contact is more heavily implanted with dopant material then the bit contact.