摘要:
A method of reducing roughness in an opening in a surface of a resist material disposed on a substrate, comprises generating a plasma having a plasma sheath and ions therein. The method also includes modifying a shape of a boundary defined between the plasma and the plasma sheath with a plasma sheath modifier so that a portion of the boundary facing the resist material is not parallel to a plane defined by the surface of the substrate. The method also includes providing a first exposure of ions while the substrate is in a first position, the first exposure comprising ions accelerated across the boundary having the modified shape toward the resist material over an angular range with respect to the surface of the substrate.
摘要:
A method of reducing roughness in an opening in a surface of a resist material disposed on a substrate, comprises generating a plasma having a plasma sheath and ions therein. The method also includes modifying a shape of a boundary defined between the plasma and the plasma sheath with a plasma sheath modifier so that a portion of the boundary facing the resist material is not parallel to a plane defined by the surface of the substrate. The method also includes providing a first exposure of ions while the substrate is in a first position, the first exposure comprising ions accelerated across the boundary having the modified shape toward the resist material over an angular range with respect to the surface of the substrate.
摘要:
A method of treating a photoresist relief feature having an initial line roughness and an initial critical dimension. The method may include directing ions toward the photoresist in a first exposure at a first angular range and first dose rate and a that is configured to reduce the initial line roughness to a second line roughness. The method may also include directing ions toward the photoresist relief feature in a second exposure at a second ion dose rate greater than the first dose rate, wherein the second ion dose rate is configured to swell the photoresist relief feature.
摘要:
A method of reducing the roughness profile in a plurality of patterned resist features. Each patterned resist feature includes a first sidewall and a second sidewall opposite the first sidewall, wherein each patterned resist feature comprises a mid frequency line width roughness and a low frequency linewidth roughness. A plurality of ion exposure cycles are performed, wherein each ion exposure cycle comprises providing ions at a tilt angle of about five degrees or larger upon the first sidewall, and providing ions at a tilt angle of about five degrees or larger upon the second sidewall. Upon the performing of the plurality of ion exposure cycles the mid frequency and low frequency linewidth roughness are reduced.
摘要:
A method of treating a photoresist relief feature having an initial line roughness and an initial critical dimension. The method may include directing ions toward the photoresist in a first exposure at a first angular range and first dose rate and a that is configured to reduce the initial line roughness to a second line roughness. The method may also include directing ions toward the photoresist relief feature in a second exposure at a second ion dose rate greater than the first dose rate, wherein the second ion dose rate is configured to swell the photoresist relief feature.
摘要:
A method of reducing the roughness profile in a plurality of patterned resist features. Each patterned resist feature includes a first sidewall and a second sidewall opposite the first sidewall, wherein each patterned resist feature comprises a mid frequency line width roughness and a low frequency linewidth roughness. A plurality of ion exposure cycles are performed, wherein each ion exposure cycle comprises providing ions at a tilt angle of about five degrees or larger upon the first sidewall, and providing ions at a tilt angle of about five degrees or larger upon the second sidewall. Upon the performing of the plurality of ion exposure cycles the mid frequency and low frequency linewidth roughness are reduced.
摘要:
A method of treating resist features comprises positioning, in a process chamber, a substrate having a set of patterned resist features on a first side of the substrate and generating a plasma in the process chamber having a plasma sheath adjacent to the first side of the substrate. The method may further comprise modifying a shape of a boundary between the plasma and the plasma sheath with a plasma sheath modifier so that a portion of the shape of the boundary is not parallel to a plane defined by a front surface of the substrate facing the plasma, wherein ions from the plasma impinge on the patterned resist features over a wide angular range during a first exposure.
摘要:
A method of patterning a substrate, comprises providing a set of patterned features on the substrate, exposing the set of patterned features to a dose of ions incident on the substrate over multiple angles, and selectively etching exposed portions of the patterned features.
摘要:
A method of reducing surface roughness of a resist feature disposed on a substrate includes generating a plasma having a plasma sheath and ions therein. A shape of the boundary between the plasma and plasma sheath is modified using a plasma sheath modifier, so that a portion of the boundary facing the substrate is not parallel to a plane defined by the substrate. During a first exposure, the resist feature is exposed to electromagnetic radiation having a desired wavelength and the ions are accelerated across the boundary having the modified shape toward the resist features over an angular range.
摘要:
A method of patterning a substrate, comprises providing a set of patterned features on the substrate, exposing the set of patterned features to a dose of ions incident on the substrate over multiple angles, and selectively etching exposed portions of the patterned features.