Methods for removing particles from microelectronic structures

   
   

A method of cleaning and removing solid particles during a manufacturing process from a microelectronic device such as a resist-coated semiconductor substrate, a MEM's device, or an optoelectronic device comprising the steps of: (a) providing a partially fabricated integrated circuit, MEM's device, or optoelectronic device having water and entrained solutes on the substrate; (b) providing a densified (e.g., liquid or supercritical) carbon dioxide cleaning composition, the cleaning composition comprising carbon dioxide and a cleaning adjunct, the cleaning adjunct selected from the group consisting of cosolvents, surfactants, and combinations thereof; (c) immersing the surface portion in the densified carbon dioxide cleaning composition to remove solid particles from the surface portion; and then (d) removing the cleaning composition from the surface portion. Process parameters are controlled so that the cleaning composition is maintained as a homogeneous composition during the immersing step, the removing step, or both the immersing and removing step, without substantial deposition of the drying/cleaning adjunct or solid particles on the substrate.

Um método da limpeza e de remover as partículas contínuas durante um processo de manufacturing de um dispositivo microelectronic tal como uma carcaça resist-coated do semicondutor, o dispositivo de um MEM, ou um dispositivo optoelectronic que compreende as etapas de: (a) fornecendo um circuito integrado parcialmente fabricado, o dispositivo de MEM, ou o dispositivo optoelectronic que tem a água e solutes entrained na carcaça; (b) fornecendo a densified (por exemplo, líquido ou supercritical) a composição da limpeza do dióxido de carbono, a composição da limpeza que compreendem o dióxido de carbono e um adjunct da limpeza, o adjunct da limpeza selecionado dos cosolvents consistindo do grupo, surfactants, e combinações disso; (c) immersing a parcela de superfície no densified a composição da limpeza do dióxido de carbono para remover as partículas contínuas da parcela de superfície; e então (d) removendo a composição da limpeza da parcela de superfície. Os parâmetros process são controlados de modo que a composição da limpeza seja mantida enquanto uma composição homogênea durante a etapa immersing, a etapa removendo, ou a etapa immersing e removendo, sem deposition substancial do adjunct de drying/cleaning ou partículas contínuas na carcaça.

 
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