摘要:
In the manufacture of integrated circuits, reactive compositions that include a reactive etchant species and an oxygen-containing species can provide selective removal of target material and can reduce contamination of gas delivery lines.
摘要:
In the manufacture of integrated circuits, reactive compositions that include a reactive etchant species and an oxygen-containing species can provide selective removal of target material and can reduce contamination of gas delivery lines.
摘要:
Apparatus, systems and methods for plasma etching substrates are provided. The invention achieves dissipation of charge build-up on a substrate being plasma etched to avoid notching or twisting in high aspect ratio contents and similar features. Charge build-up on a substrate being etched by plasma etching can be dissipated by a method for etching a substrate, the method comprising: providing a plasma processing chamber comprising a chamber enclosure and a substrate support adapted to support a substrate within the chamber enclosure; supporting a substrate on the substrate support; forming a plasma within the chamber enclosure such that a surface of the substrate is in contact with the plasma; etching the substrate by generating a negative bias on the substrate surface relative to the plasma; and intermittently changing the bias on the substrate surface to positive relative to the plasma. The present method can be readily integrated into known plasma processing systems.
摘要:
The invention includes methods of etching features into substrates. A plurality of hard mask layers is formed over material of a substrate to be etched. A feature pattern is formed in such layers. A feature is etched only partially into the substrate material using the hard mask layers with the feature pattern therein as a mask. After the partial etching, at least one of the hard mask layers is etched selectively relative to the substrate material and remaining of the hard mask layers. After etching at least one of the hard mask layers, the feature is further etched into the substrate material using at least an innermost of the hard mask layers as a mask. After the further etching, the innermost hard mask layer and any hard mask layers remaining thereover are removed from the substrate, and at least a portion of the feature is incorporated into an integrated circuit.
摘要:
A process for etching a insulating layer to produce an opening having an aspect ratio of at least 15:1 by supplying a first gaseous etchant having at least fifty (50) percent He to a plasma etch reactor, and exposing the insulating layer to a plasma of the first gaseous etchant. Use of the first gaseous etchant reduces the occurrence of twisting in openings in insulating layers having an aspect ratio of at least 15:1.
摘要:
The invention features a novel gene encoding methionine synthase reductase. The invention also features a method for detecting an increased likelihood of hyperhomocysteinemia and, in turn, an increased or decreased likelihood of neural tube defects, cardiovascular disease, Down's Syndrome or cancer. The invention also features therapeutic methods for treating and/or reducing the risk of cardiovascular disease, Down's Syndrome, cancer, or neural tube defects. Also provided are the sequences of the human methionine synthase reductase gene and protein and compounds and kits for performing the methods of the invention.
摘要:
The invention features a novel gene encoding methionine synthase reductase. The invention also features a method for detecting an increased likelihood of hyperhomocysteinemia and, in turn, an increased or decreased likelihood of neural tube defects, cardiovascular disease, or cancer. The invention also features therapeutic methods for treating and/or reducing the risk of cardiovascular disease, cancer, or neural tube defects. Also provided are the sequences of the human methionine synthase reductase gene and protein and compounds and kits for performing the methods of the invention.
摘要:
A carbon containing masking layer is patterned to include a plurality of container openings therein having minimum feature dimensions of less than or equal to 0.20 micron. The container openings respectively have at least three peripheral corner areas which are each rounded. The container forming layer is plasma etched through the masking layer openings. In one implementation, such plasma etching uses conditions effective to both a) etch the masking layer to modify shape of the masking layer openings by at least reducing degree of roundness of the at least three corners in the masking layer, and b) form container openings in the container forming layer of the modified shapes. Capacitors comprising container shapes are formed using the container openings in the container forming layer. Other implementations and aspects are disclosed.
摘要:
The invention features a novel gene encoding methionine synthase reductase. The invention also features a method for detecting an increased likelihood of hyperhomocysteinemia and, in turn, an increased or decreased likelihood of neural tube defects, cardiovascular disease, Down's Syndrome or cancer. The invention also features therapeutic methods for treating and/or reducing the risk of cardiovascular disease, Down's Syndrome, cancer, or neural tube defects. Also provided are the sequences of the human methionine synthase reductase gene and protein and compounds and kits for performing the methods of the invention.
摘要:
In a disk drive system having two actuators, each said actuator having a plurality of transducers, said system employing a transducer switching procedure for switching between a first presently selected transducer and a second to be selected transducer, an apparatus, associated with the nonpackwriting actuator, for controlling the sensing of an address mark by said second transducer, said apparatus comprising an address mark means for generating an address mark search signal to start an address mark search when an address mark is expected to be read by said first transducers; and an adjusting means connected to said address mark means for altering the time when said address mark means will generate said address mark search signal such that said second transducer will read the next address mark to occur on the track being read by said second transducer after said second transducer is selected.