摘要:
Memory cell structures and methods are described herein. One or more memory cells include a transistor having a charge storage node, a dielectric material positioned between the charge storage node and a channel region of the transistor, the channel region positioned between a source region and a drain region, and a first electrode of a diode coupled to the charge storage node.
摘要:
A nanotube separation method includes depositing a tag on a nanotube in a nanotube mixture. The nanotube has a defect and the tag deposits at the defect where a deposition rate is greater than on another nanotube in the mixture lacking the defect. The method includes removing the tagged nanotube from the mixture by using the tag. As one option, the tag may contain a ferromagnetic material and the removing may include applying a magnetic field. As another option, the tag may contain an ionic material and the removing may include applying an electric field. As a further option, the tag may contain an atom having an atomic mass greater than the atomic mass of carbon and the removing may include applying a centrifugal force to the nanotube mixture. Any two or more of the indicated removal techniques may be combined.
摘要:
Some embodiments include electrical interconnects. The interconnects may contain laminate structures having a graphene region sandwiched between non-graphene regions. In some embodiments the graphene and non-graphene regions may be nested within one another. In some embodiments an electrically insulative material may be over an upper surface of the laminate structure, and an opening may extend through the insulative material to a portion of the laminate structure. Electrically conductive material may be within the opening and in electrical contact with at least one of the non-graphene regions of the laminate structure. Some embodiments include methods of forming electrical interconnects in which non-graphene material and graphene are alternately formed within a trench to form nested non-graphene and graphene regions.
摘要:
The use of strained gate electrodes in integrated circuits results in a transistor having improved carrier mobility, improved drive characteristics, and reduced source drain junction leakage. The gate electrode strain can be obtained through non symmetric placement of stress inducing structures as part of the gate electrode.
摘要:
The invention comprises methods of forming a conductive contact to a source/drain region of a field effect transistor, and methods of forming local interconnects. In one implementation, a method of forming a conductive contact to a source/drain region of a field effect transistor includes providing gate dielectric material intermediate a transistor gate and a channel region of a field effect transistor. At least some of the gate dielectric material extends to be received over at least one source/drain region of the field effect transistor. The gate dielectric material received over the one source/drain region is exposed to conditions effective to change it from being electrically insulative to being electrically conductive and in conductive contact with the one source/drain region. Other aspects and implementations are contemplated.
摘要:
Multiple pitch-multiplied spacers are used to form mask patterns having features with exceptionally small critical dimensions. One of each pair of spacers formed around a plurality of mandrels is removed and alternating layers, formed of two mutually selectively etchable materials, are deposited around the remaining spacers. Layers formed of one of the materials are then etched, leaving behind vertically-extending layers formed of the other of the materials, which form a mask pattern. Alternatively, instead of depositing alternating layers, amorphous carbon is deposited around the remaining spacers followed by a plurality of cycles of forming pairs of spacers on the amorphous carbon, removing one of the pairs of spacers and depositing an amorphous carbon layer. The cycles can be repeated to form the desired pattern. Because the critical dimensions of some features in the pattern can be set by controlling the width of the spaces between spacers, exceptionally small mask features can be formed.
摘要:
Apparatus and systems provide a mechanism to examine physical properties and/or diagnose problems at a selected location of an integrated circuit. Such apparatus and systems can include a source of an energetic beam directed at the selected location. The apparatus and systems may be used to provide examination and/or diagnostic methods that may be used in areas smaller than one micron in diameter and that may be used to remove IC layers, either selectively or non-selectively, until a desired depth is obtained.
摘要:
The invention comprises methods of forming a conductive contact to a source/drain region of a field effect transistor, and methods of forming local interconnects. In one implementation, a method of forming a conductive contact to a source/drain region of a field effect transistor includes providing gate dielectric material intermediate a transistor gate and a channel region of a field effect transistor. At least some of the gate dielectric material extends to be received over at least one source/drain region of the field effect transistor. The gate dielectric material received over the one source/drain region is exposed to conditions effective to change it from being electrically insulative to being electrically conductive and in conductive contact with the one source/drain region. Other aspects and implementations are contemplated.
摘要:
Spacers in a pitch multiplication process are formed without performing a spacer etch. Rather, the mandrels are formed over a substrate and then the sides of the mandrels are reacted, e.g., in an oxidization, nitridation, or silicidation step, to form a material that can be selectively removed relative to the unreacted portions of the mandrel. The unreacted portions are selectively removed to leave a pattern of free-standing spacers. The free-standing spacers can serve as a mask for subsequent processing steps, such as etching the substrate.
摘要:
This invention includes methods of forming layers comprising epitaxial silicon, and field effect transistors. In one implementation, a method of forming a layer comprising epitaxial silicon comprises epitaxially growing a silicon-comprising layer from an exposed monocrystalline material. The epitaxially grown silicon comprises at least one of carbon, germanium, and oxygen present at a total concentration of no greater than 1 atomic percent. In one implementation, the layer comprises a silicon germanium alloy comprising at least 1 atomic percent germanium, and further comprises at least one of carbon and oxygen at a total concentration of no greater than 1 atomic percent. Other aspects and implementations are contemplated.