Abstract:
An improved solvent containing sulfolane and at least one dialkyl sulfone, preferably dimethyl sulfone, wherein the improved solvent is a liquid at room temperature and can be used for reaction media and electrochemistry.
Abstract:
The present disclosure relates to an integrated liner-based system having an overpack and a liner provided within the overpack, the liner comprising a mouth and a liner wall forming an interior cavity of the liner and having a thickness such that the liner is substantially self-supporting in an expanded state, but is collapsible at a pressure of less than about 20 psi. The liner and overpack may be made by blow molding the liner and the overpack at the same time using nested preforms.
Abstract:
Compositions useful for the selective removal of titanium nitride and/or photoresist etch residue materials relative to insulating materials from a microelectronic device having same thereon. The removal compositions contain at least one oxidant, one etchant, and one activator to enhance the etch rate of titanium nitride.
Abstract:
A pressure dispense method and system for reducing the presence of folds for a liquid-filled liner within an overpack while reducing the loads and stresses on the liquid-filled liner. The flexible liner is of a conformal size and shape to the interior space of the overpack so that the flexible liner does not pull downward and away from the interior surface of the overpack when the flexible liner is filled with a liquid. The flexible liner also configured to eliminate folding in upon itself when the liner is filled with a liquid within the overpack.
Abstract:
Compositions useful for the selective removal of titanium nitride and/or photoresist etch residue materials relative to metal conducting, e.g., cobalt, ruthenium and copper, and insulating materials from a microelectronic device having same thereon. The removal compositions contain at least one oxidant and one etchant, may contain various corrosion inhibitors to ensure selectivity.
Abstract:
A fluid dispensing system for delivering a gas free chemical. The fluid dispensing system includes a gas separation device that separates a liquid from bubbles entrained in the liquid and accumulating the gas from the bubbles in a reservoir. A level sensor detects if the liquid in the reservoir drops too low, triggering the gas separation device to vent the gas from the reservoir. An empty detect apparatus that detects pressure droop of the liquid may also be implemented for taking appropriate action.
Abstract:
Disclosed herein is a composition and method for semiconductor processing. In one embodiment, a wet-cleaning composition for removal of photoresist is provided. The composition comprises a strong base; an oxidant; and a polar solvent. In another embodiment, a method for removing photoresist is provided. The method comprises the steps of applying a wet-cleaning composition comprising about 0.1 to about 30 weight percent strong base; about one to about 30 weight percent oxidant; about 20 to about 95 weight percent polar solvent; and removing the photoresist.
Abstract:
Compositions useful for the selective removal of silicon nitride materials relative to polysilicon, silicon oxide materials and/or silicide materials from a microelectronic device having same thereon. The removal compositions include fluorosilicic acid, silicic acid, and at least one organic solvent. Typical process temperatures are less than about 100° C. and typical selectivity for nitride versus oxide etch is about 200:1 to about 2000:1. Under typical process conditions, nickel-based silicides as well as titanium and tantalum nitrides are largely unaffected, and polysilicon etch rates are less than about 1 Å min−1.
Abstract:
A semiconductor wafer cleaning formulation, including 1-35% wt. fluoride source, 20-60% wt. organic amine(s), 0.1-40% wt. nitrogenous component, e.g., a nitrogen-containing carboxylic acid or an imine, 20-50% wt. water, and 0-21% wt. metal chelating agent(s). The formulations are useful to remove residue from wafers following a resist plasma ashing step, such as inorganic residue from semiconductor wafers containing delicate copper interconnecting structures.
Abstract:
A fluid storage and dispensing apparatus including a fluid storage and dispensing vessel having a rectangular parallelepiped shape, and an integrated gas cabinet assembly including such fluid storage and dispensing apparatus and/or a point-of-use ventilation gas scrubber in the vented gas cabinet. By the use of physical adsorbent and chemical sorbent media, the gas cabinet can be enhanced in safety of operation, e.g., where the process gas supplied from the gas cabinet is of a toxic or otherwise hazardous character.