摘要:
A stripping composition comprising at least one of alcohols having an ether-bond in the molecule thereof as component (a), and an anticorrosive as component (b). Furfuryl alcohol or tetrahydrofurfuryl alcohol is preferable as component (a).
摘要:
According to this invention, residues generated after selectively removing a low-dielectric-constant film such as SiOC can be effectively removed without damage on an insulating film or metal film. Specifically, residues 126 and 128 generated after forming an interconnect trench in an SiOC film 116 are removed using a fluoride-free weak alkaline amine stripper. After the removing step, the wafer is rinsed with isopropyl alcohol and then dried without drying with pure water.
摘要:
According to the present invention, there is provided an anticorrosive treating concentrate usable for an exposed surface of a metal (e.g. copper or a copper alloy), containing an anticorrosive agent and a precipitation inhibitor and having a pH of 4 to 12 when used in the form of an aqueous solution, in which concentrate the anticorrosive agent is a triazole type compound and/or a derivative thereof and is contained in a concentration of 0.05 to 20% by weight and the precipitation inhibitor is a compound having at least one nitrogen atom but no metal atom in the molecule.
摘要:
A cleaning solution for semiconductor substrates comprising a nonionic surface active agent of the formula (1) and/or the formula (2), a chelating agent and a chelating accelerator: CH3—(CH2)l—O—(CmH2mO)n—X (1) wherein l, m and n independently represent a positive number, and X represents a hydrogen atom or a hydrocarbon group; CH3—(CH2)a—O—(CbH2bO)d—(CxH2xO)y—X (2) wherein a, b, d, x and y independently represent a positive number, b and x are different, and X represents a hydrogen atom or a hydrocarbon group.
摘要翻译:一种用于半导体衬底的清洁溶液,其包含式(1)和/或式(2)的非离子表面活性剂,螯合剂和螯合促进剂:<?in-line-formula description =“In-Line Formulas” 结束=“铅”→CH 3 - (CH 2) u> u> u> &lt; 2m&lt; O&lt; n&gt; -X(1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中l,m和 n独立地表示正数,X表示氢原子或烃基; <?in-line-formula description =“In-line Formulas”end =“lead”?> CH 3 - (CH 2) SUB> > - (C b H 2b)O - (C x H 2 H 2) 其中a,b,d,x和y分别代表一个或多个,其中a,b,d,x和y 独立地表示正数,b和x不同,X表示氢原子或烃基。
摘要:
A stripping composition comprising (a) an anticorrosive agent, (b) a stripping agent and (c) a solvent, wherein the anticorrosive agent (a) is a heterocyclic compound having a nitrogen atom-containing six-membered ring.
摘要:
A removing solution for removing tungsten metal which causes a film formation on a semiconductor substrate or adheres to it, wherein orthoperiodic acid and water are contained.
摘要:
According to the present invention, high-k film can be etched to provide a desired geometry without damaging the silicon underlying material. A silicon oxide film 52 is formed on a silicon substrate 50 by thermal oxidation, and a high dielectric constant insulating film 54 comprising HfSiOx is formed thereon. Thereafter, polycrystalline silicon layer 56 and high dielectric constant insulating film 54 are selectively removed in stages by a dry etching through a mask of the resist layer 58, and subsequently, the residual portion of the high dielectric constant insulating film 54 and the silicon oxide film 52 are selectively removed by wet etching through a mask of polycrystalline silicon layer 56. A liquid mixture of phosphoric acid and sulfuric acid is employed for the etchant solution. The temperature of the etchant solution is preferably equal to or lower than 200 degree C., and more preferably equal to or less than 180 degree C.
摘要:
An oxide film formed on the surface of copper film of an electrode pad is cleaned by oxalic acid after unevenness is formed on the surface of copper film by treating the surface with organic acid. Thereby, stable resistance is obtained when carrying out a characteristic inspection by bringing a probe into contact with the electrode pad, and it is easily recognized by observation through a microscope that the probe is brought into contact with the electrode pad. In addition, wettability with respect to solder is satisfactory, and it is possible to favorably form a solder bump on the electrode pad.
摘要:
The invention provides a semiconductor washing solution which can suppress occurrence of variation of the shape of a semiconductor device when the semiconductor device is washed and can maintain a stabilized washing capacity for a long period of time. An organic acid ammonium salt is added to a mixed solution of ammonium hydroxide, hydrogen peroxide and water (NH4OH:H2O2:H2O) to prepare the semiconductor washing solution. The organic acid ammonium salt to be added is one or more selected from ammonium acetate, ammonium citrate, ammonium formate and ammonium oxalate. The concentration of the added organic acid ammonium salt ranges from 0.1 mol/l to 20 mol/l.
摘要翻译:本发明提供一种半导体洗涤液,其可以抑制半导体器件洗涤时半导体器件的形状的变化,并能够长期保持稳定的洗涤能力。 将有机酸铵盐加入到氢氧化铵,过氧化氢和水的混合溶液中(NH 3 OH:H 2 O 2): H 2 O)以制备半导体洗涤溶液。 待加入的有机酸铵盐是选自乙酸铵,柠檬酸铵,甲酸铵和草酸铵中的一种或多种。 加入的有机酸铵盐的浓度为0.1mol / l至20mol / l。