摘要:
Compositions useful in reworking microelectronic device wafers, i.e., removing photoresist from rejected wafers, without damaging underlying layers and structures such as cap layers, interlevel dielectric layers, etch stop layers and metal interconnect material. The semi-aqueous compositions include at least one alkali and/or alkaline earth metal basic salt, at least one organic solvent, water, optionally at least one quaternary ammonium basic salt, optionally at least one metal corrosion inhibitor and optionally at least one water-soluble polymer surfactant.
摘要:
A liquid removal composition and process for removing photoresist and/or sacrificial anti-reflective coating (SARC) material from a microelectronic device having same thereon. The liquid removal composition includes at least one organic quaternary base and at least one surface interaction enhancing additive. The composition achieves at least partial removal of photoresist and/or SARC material in the manufacture of integrated circuitry with minimal etching of metal species on the microelectronic device, such as copper and cobalt, and without damage to low-k dielectric materials employed in the microelectronic device architecture.
摘要:
A liquid removal composition and process for removing photoresist and/or sacrificial anti-reflective coating (SARC) material from a microelectronic device having same thereon. The liquid removal composition includes at least one organic quaternary base and at least one surface interaction enhancing additive. The composition achieves at least partial removal of photoresist and/or SARC material in the manufacture of integrated circuitry with minimal etching of metal species on the microelectronic device, such as copper and cobalt, and without damage to low-k dielectric materials employed in the microelectronic device architecture.
摘要:
A method and composition for removing silicon-containing particulate material, such as silicon nitrides and silicon oxides, from patterned Si/SiO2 semiconductor wafer surfaces is described. The composition includes a supercritical fluid (SCF), an etchant species, a co-solvent, a surface passivator, a binder, deionized water, and optionally a surfactant. The SCF-based compositions substantially remove the contaminating particulate material from the wafer surface prior to subsequent processing, thus improving the morphology, performance, reliability and yield of the semiconductor device.
摘要:
A composition and process for removing photoresist and/or sacrificial anti-reflective coating (SARC) materials from a substrate having such material(s) thereon. The composition includes a base component, such as a quaternary ammonium base in combination with an alkali or alkaline earth base, or alternatively a strong base in combination with an oxidant. The composition may be utilized in aqueous medium, e.g., with chelator, surfactant, and/or co-solvent species, to achieve high-efficiency removal of photoresist and/or SARC materials in the manufacture of integrated circuitry, without adverse effect on metal species on the substrate, such as copper, aluminum and/or cobalt alloys, and without damage to SiOC-based dielectric materials employed in the semiconductor architecture.
摘要:
A method and composition for removing ion-implanted photoresist from semiconductor substrates having such photoresist is described. The removal composition contains supercritical CO2 (SCCO2), a co-solvent and a reducing agent for use in removing ion-implanted photoresist. Such removal composition overcomes the intrinsic deficiency of SCCO2 as a removal reagent, viz., the non-polar character of SCCO2 and its associated inability to solubilize species such as inorganic salts and polar organic compounds that are present in the photoresist and that must be removed from the semiconductor substrate for efficient cleaning.
摘要:
Apparatuses and processes for recycling printed wire boards, wherein electronic components, precious metals and base metals may be collected for reuse and recycling. The apparatuses generally include a mechanical solder removal module and/or a thermal module, a chemical solder removal module, and a precious metal leaching module, wherein the modules are attached for continuous passage of the e-waste from module to module.
摘要:
A leaching composition that substantially removes lead from solid materials and a method of using said composition. Preferably, the concentration of lead in the solid materials following processing is low enough that the solid materials can be reused and/or disposed of at minimal cost to the processor. Preferably, the solid materials comprise glass, such as cathode ray tube glass.
摘要:
An oxidizing aqueous cleaning composition and process for cleaning post-plasma etch residue and/or hardmask material from a microelectronic device having said residue thereon. The oxidizing aqueous cleaning composition includes at least one oxidizing agent, at least one oxidizing agent stabilizer comprising an amine species selected from the group consisting of primary amines, secondary amines, tertiary amines and amine-N-oxides, optionally at least one co-solvent, optionally at least one metal-chelating agent, optionally at least one buffering species, and water. The composition achieves highly efficacious cleaning of the residue material from the microelectronic device while simultaneously not damaging the interlevel dielectric and metal interconnect material also present thereon.
摘要:
Methods of reducing the capillary forces experienced by fragile high aspect ratio structures during drying to substantially prevent damage to said high aspect ratio structures during drying. They include modifying the surface of the high aspect ratio structures such that the forces are sufficiently minimized and as such less than 10% of the high aspect ratio features will have bent or collapsed during drying of the structure having said features thereon.