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.
摘要:
Some embodiments include methods of forming diodes. The methods may include oxidation of an upper surface of a conductive electrode to form an oxide layer over the conductive electrode. In some embodiments, the methods may include formation of an oxidizable material over a conductive electrode, and subsequent oxidation of the oxidizable material to form an oxide layer over the conductive electrode. In some embodiments, the methods may include formation of a metal halide layer over a conductive electrode. Some embodiments include diodes that contain a metal halide layer between a pair of diode electrodes.
摘要:
Some embodiments include methods of treating reticles to provide backside masking across regions of the reticle to compensate for problems occurring during photolithographic processing. The problems may be, for example, defects in the reticle, problems associated with deposition or development of photoresist, or problems associated with substrate topography. The masking may alter one or both of transmission of electromagnetic radiation through the masked regions, and polarization of electromagnetic radiation passed through the masked regions. Some embodiments include reticles having patterns along front sides for patterning electric magnetic radiation, and masks across portions of the backsides to at least partially block transmission of electromagnetic radiation through portions of the patterns.
摘要:
A method of imaging and identifying defects and contamination on the surface of an integrated circuit is described. The method may be used on areas smaller than one micron in diameter. An energetic beam, such as an electron beam, is directed at a selected IC location having a layer of a solid, fluid or gaseous reactive material formed over the surface. The energetic beam disassociates the reactive material in the region into chemical radicals that either chemically etch the surface preferentially, or deposit a thin layer of a conductive material over the local area around the energetic beam. The surface may be examined as various layers are selectively etched to decorate defects and/or as various layers are locally deposited in the area around the energetic beam. SEM imaging and other analytic methods may be used to identify the problem more easily.
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.
摘要:
A mask having features formed by self-organizing material, such as diblock copolymers, is formed on a partially fabricated integrated circuit. Initially, a copolymer template, or seed layer, is formed on the surface of the partially fabricated integrated circuit. To form the seed layer, diblock copolymers, composed of two immiscible blocks, are deposited in the space between copolymer alignment guides. The copolymers are made to self-organize, with the guides guiding the self-organization and with each block aggregating with other blocks of the same type, thereby forming the seed layer. Next, additional, supplemental diblock copolymers are deposited over the seed layer. The copolymers in the seed layer guide self-organization of the supplemental copolymers, thereby vertically extending the pattern formed by the copolymers in the seed layer. Block species are subsequently selectively removed to form a pattern of voids defined by the remaining block species, which form a mask that can be used to pattern an underlying substrate. The supplemental copolymers augment the height of the copolymers in the seed layer, thereby facilitating the use of the copolymers for patterning the underlying substrate.
摘要:
Some embodiments include methods of treating reticles to provide backside masking across regions of the reticle to compensate for problems occurring during photolithographic processing. The problems may be, for example, defects in the reticle, problems associated with deposition or development of photoresist, or problems associated with substrate topography. The masking may alter one or both of transmission of electromagnetic radiation through the masked regions, and polarization of electromagnetic radiation passed through the masked regions. Some embodiments include reticles having patterns along front sides for patterning electric magnetic radiation, and masks across portions of the backsides to at least partially block transmission of electromagnetic radiation through portions of the patterns.
摘要:
Some embodiments include methods for treating surfaces. Beads and/or other insolubles may be dispersed within a liquid carrier to form a dispersion. A transfer layer may be formed across a surface. The dispersion may be directed toward the transfer layer, and the insolubles may impact the transfer layer. The impacting may generate force in the transfer layer, and such force may be transferred through the transfer layer to the surface. The surface may be a surface of a semiconductor substrate, and the force may be utilized to sweep contaminants from the semiconductor substrate surface. The transfer layer may be a liquid, and in some embodiments may be a cleaning solution.