摘要:
Methods for etching an oxide layer disposed on a substrate through a patterned layer defining one or more features to be etched into the oxide layer are provided herein. In some embodiments, a method for etching an oxide layer disposed on a substrate through a patterned layer defining one or more features to be etched into the oxide layer may include: etching the oxide layer through the patterned layer using a process gas comprising a polymer forming gas and an oxygen containing gas to form the one or more features in the oxide layer; and pulsing at least one of the polymer forming gas or the oxygen containing gas for at least a portion of etching the oxide layer to control a dimension of the one or more features.
摘要:
Methods of etching HAR features in a dielectric layer are described. In one embodiment, a substrate is provided into an etch chamber. The substrate has a patterned mask disposed on a dielectric layer formed thereon where the patterned mask has openings. A gas mixture is provided into the etch chamber, the gas mixture includes CO, O2, a fluorocarbon gas, and an optional inert gas. A plasma is formed from the gas mixture. Features are etched in the dielectric layer through the openings in the presence of the plasma
摘要:
The present invention provides methods, devices, and systems for detecting and filtering SPam over Internet Telephony (SPIT). The invention includes a two level filter. The first level may include a robust audio hash used to filter audio messages based on their audio content and the second level may include a near-duplicate pattern matching algorithm having a number of content filters and an evaluator to aggregate the results from the multiple content filters. By supporting multiple aggregation methods, a more flexible SPIT detection scheme is provided.
摘要:
Silicon-germanium-based compositions comprising silicon, germanium, and carbon (i.e., Si--Ge--C), methods for growing Si--Ge--C epitaxial layer(s) on a substrate, etchants especially suitable for Si--Ge--C etch-stops, and novel methods of use for Si--Ge--C compositions are provided. In particular, the invention relates to Si--Ge--C compositions, especially for use as etch-stops and related processes and etchants useful for microelectronic and nanotechnology fabrication.
摘要:
The invention relates to an enteric-coated capsule containing cationic nanoparticles for oral insulin delivery, in particular to a type of cationic nanoparticle including a polycationic and mucoadhesive polymer and a biodegradable polymer, wherein each of the nanoparticles has positive surface charge and enhanced permeability for paracellular insulin delivery; the enteric-coated capsule further includes a pH-sensitive polymer as the coating. The enteric-coated capsule containing cationic nanoparticles, when being orally administered to a subject, are configured to prevent the acidic degradation of the active substance such as insulin before being released from said cationic nanoparticles to a specific absorption site along the gastrointestinal tract.
摘要:
Silicon-germanium-based compositions comprising silicon, germanium, and carbon (i.e., Si--Ge--C), methods for growing Si--Ge--C epitaxial layer(s) on a substrate, etchants especially suitable for Si--Ge--C etch-stops, and novel methods of use for Si--Ge--C compositions are provided. In particular, the invention relates to Si--Ge--C compositions, especially for use as etch-stops and related processes and etchants useful for microelectronic and nanotechnology fabrication.
摘要:
Techniques include heating a substantially uniformly boron-doped wafer to achieve a significantly increased resistivity in a near-surface region of the wafer and forming at least one electrical circuit element in the near-surface region. Integrated circuits or other devices may include a semiconductor wafer with a substantially uniformly boron-doped bulk region and a reduced boron concentration layer near a surface of the wafer. An electrical circuit element may be provided in the reduced boron concentration layer.
摘要:
Silicon-germanium-based compositions comprising silicon, germanium, and carbon (i.e., Si--Ge--C), methods for growing Si--Ge--C epitaxial layer(s) on a substrate, etchants especially suitable for Si--Ge--C etch-stops, and novel methods of use for Si--Ge--C compositions are provided. In particular, the invention relates to Si--Ge--C compositions, especially for use as etch-stops and related processes and etchants useful for microelectronic and nanotechnology fabrication.
摘要:
The present invention discloses the pH-sensitive nanoparticles composed of pH-sensitive polymer, hydrophobic material, internal stabilizer, external stabilizer content and insulin drug. The present invention also includes a method for preparation of pH-sensitive nanoparticles, in particular, a multiple emulsions solvent evaporation method. The pH-sensitive nanoparticles of the present invention show good pH-sensitive property with 100-300 nanometer particle size. Significant decrease in blood glucose level is observed in streptozotocin (STZ)-induced diabetic rats and the bioavailability of insulin is more than 10% after oral administration of the insulin-loaded pH-sensitive nanoparticles.
摘要:
Techniques include heating a substantially uniformly boron-doped wafer to achieve a significantly increased resistivity in a near-surface region of the water and forming at least one electrical circuit element in the near-surface region.