Invention Grant
US07754668B2 Compositions for the removal of post-etch and ashed photoresist residues and bulk photoresist 有权
用于去除蚀刻后和残留的光致抗蚀剂残余物和体光致抗蚀剂的组合物

  • Patent Title: Compositions for the removal of post-etch and ashed photoresist residues and bulk photoresist
  • Patent Title (中): 用于去除蚀刻后和残留的光致抗蚀剂残余物和体光致抗蚀剂的组合物
  • Application No.: US11911346
    Application Date: 2006-04-18
  • Publication No.: US07754668B2
    Publication Date: 2010-07-13
  • Inventor: Sean M. Kane
  • Applicant: Sean M. Kane
  • Applicant Address: US NJ Phillipsburg
  • Assignee: Mallinckrodt Baker. Inc
  • Current Assignee: Mallinckrodt Baker. Inc
  • Current Assignee Address: US NJ Phillipsburg
  • Agency: Ohlandt, Greeley, Ruggiero & Perle LLP.
  • Agent George W. Rauchfuss, Jr. Esq.
  • International Application: PCT/US2006/014466 WO 20060418
  • International Announcement: WO2006/121580 WO 20061116
  • Main IPC: C11D7/50
  • IPC: C11D7/50
Compositions for the removal of post-etch and ashed photoresist residues and bulk photoresist
Abstract:
The invention provides cleaning compositions for cleaning microelectronic substrates that are able to essentially completely clean such substrates and inhibit metal corrosion or produce essentially no corrosion of the metal elements of such substrates, and to do so at relatively short cleaning times and relatively low temperatures compared to the cleaning times required for prior art alkaline-containing cleaning compositions. The invention also provides method of using such cleaning compositions to clean microelectronic substrates without producing any significant corrosion of the metal elements of the microelectronic substrate. The cleaning compositions of this invention comprise (a) at least one organic solvent, (b) at least one unneutralized inorganic phosphorus-containing acid, and (c) water. The cleaning compositions of this invention optionally can have present in the compositions other components, such as for example surfactants, metal complexing or chelating agents, corrosion inhibitors, and the like. The cleaning compositions of this invention are characterized by an absence of organic amines, hydroxylamines or other strong bases such as ammonium bases and the like that would neutralize the inorganic phosphorus-containing acid component. The cleaning and residue removal compositions of this invention are especially suitable for cleaning microelectronic substrates containing aluminum, titanium, and tungsten.
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