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 method and composition for removing hardened photoresist, post-etch photoresist, and/or bottom anti-reflective coating from a microelectronic device is described. The composition may include a dense fluid, e.g., a supercritical fluid, and a dense fluid concentrate including a co-solvent, optionally a fluoride source, and optionally an acid. The dense fluid compositions substantially remove the contaminating residue and/or layers from the microelectronic device prior to subsequent processing, thus improving the morphology, performance, reliability and yield of the microelectronic device.
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:
A post-etch residue cleaning composition for cleaning ashed or unashed aluminum/SiN/Si post-etch residue from small dimensions on semiconductor substrates. The cleaning composition contains supercritical CO2 (SCCO2), alcohol, fluoride source, an aluminum ion complexing agent and, optionally, corrosion inhibitor. Such cleaning composition overcomes the intrinsic deficiency of SCCO2 as a cleaning 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 post-etch residue and that must be removed from the semiconductor substrate for efficient cleaning. The cleaning composition enables damage-free, residue-free cleaning of substrates having ashed or unashed aluminum/SiN/Si post-etch residue thereon.
摘要翻译:蚀刻后残留物清洁组合物,用于从半导体衬底上的小尺寸清洁灰化或未沉淀的铝/ SiN / Si后蚀刻残留物。 清洁组合物含有超临界CO 2(SCCO 2),醇,氟化物源,铝离子络合剂和任选的缓蚀剂。 这样的清洁组合物克服了SCCO2作为清洗剂的固有缺陷,即SCCO2的非极性特征及其与溶解残留物中存在的物质如无机盐和极性有机化合物无关,并且与SCCO2的非极性相关 必须从半导体衬底去除以进行有效的清洁。 清洁组合物能够对其上具有灰化或未镀铝/ SiN / Si蚀刻后残留物的基材进行无损伤,无残留的清洁。
摘要:
A method and composition for removing silicon-containing sacrificial layers from Micro Electro Mechanical System (MEMS) and other semiconductor substrates having such sacrificial layers is described. The etching compositions include a supercritical fluid (SCF), an etchant species, a co-solvent, and optionally a surfactant. Such etching compositions overcome the intrinsic deficiency of SCFs as cleaning reagents, viz., the non-polar character of SCFs and their associated inability to solubilize polar species that must be removed from the semiconductor substrate. The resultant etched substrates experience lower incidents of stiction relative to substrates etched using conventional wet etching techniques.
摘要:
A composition including supercritical fluid and at least one additive selected from fluoro species, and primary and/or secondary amines, optionally with co-solvent, low k material attack-inhibitor(s) and/or surfactant(s). The composition has particular utility for cleaning of semiconductor wafers to remove post-ashing residues therefrom.
摘要:
A photoresist cleaning composition for removing photoresist and ion implanted photoresist from semiconductor substrates. The cleaning composition contains supercritical CO2 (SCCO2) and alcohol for use in removing photoresist that is not ion-implanted. When the photoresist has been subjected to ion implantation, the cleaning composition additionally contains a fluorine ion source. Such cleaning composition overcomes the intrinsic deficiency of SCCO2 as a cleaning 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. The cleaning composition enables damage-free, residue-free cleaning of substrates having photoresist or ion implanted photoresist thereon.
摘要:
A cleaning composition for cleaning particulate contamination from small dimensions on semiconductor substrates. The cleaning composition contains supercritical CO2 (SCCO2), alcohol, fluoride source and, optionally, hydroxyl additive. Such cleaning composition overcomes the intrinsic deficiency of SCCO2 as a cleaning 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 particulate contamination on wafer substrates and that must be removed from the semiconductor substrate for efficient cleaning. The cleaning composition enables damage-free, residue-free cleaning of substrates having particulate contamination on Si/SiO2 substrates.