摘要:
A lithographic structure consisting essentially of: an organic antireflective material disposed on a substrate; a vapor-deposited RCHX material, wherein R is one or more elements selected from the group consisting of Si, Ge, B, Sn, Fe and Ti, and wherein X is not present or is one or more elements selected from the group consisting of O, N, S and F; and a photoresist material disposed on the RCHX material. The invention is also directed to methods of making the lithographic structure, and using the structure to pattern a substrate.
摘要:
A method of forming a photolithographic mask layout with Sub-Resolution Assist Feature (SRAF) elements on a mask for correcting for proximity effects for a pattern imaged comprising the steps of developing a layout of mask features for printing main pattern features. Provide a table of SRAF element data including spacing of main pattern features and SRAF elements, applying SRAF elements to the mask layout as a function of spacing of main pattern features and SRAF elements, legalizing the SRAF elements as a function of style options, and providing a target pattern comprising a modified layout for the mask, identifying problem edge segments of an SRAF element of the target pattern at risk of causing a printing defect, applying a selected bias to the problem edge segments to modify the pattern where there are areas of SRAF element loss, and providing an output of a modified pattern with modified SRAF elements removing the areas of SRAF element loss. The system can provide SRAF elements to the mask layout as a function of spacing of main pattern features and SRAF elements may be based on data from the SRAF table; or the system can applying model based OPC for exposure dose values based on data from the SRAF table.
摘要:
A structure and a method for forming the same. The method comprises providing a structure including (a) a hole layer, (b) a BARC (bottom antireflective coating) layer on the top of the hole layer, and (c) a patterned photoresist layer on top of the BARC layer and having a photoresist hole; etching the BARC layer through the photoresist hole to extend the photoresist hole to the hole layer; performing the chemical shrinking process to shrink the extended photoresist hole; and etching the hole layer through the shrunk, extended photoresist hole so as to form a hole in the hole layer.
摘要:
A structure and a method for forming the same. The method comprises providing a structure including (a) a hole layer, (b) a BARC (bottom antireflective coating) layer on the top of the hole layer, and (c) a patterned photoresist layer on top of the BARC layer and having a photoresist hole; etching the BARC layer through the photoresist hole to extend the photoresist hole to the hole layer; performing the chemical shrinking process to shrink the extended photoresist hole; and etching the hole layer through the shrunk, extended photoresist hole so as to form a hole in the hole layer.
摘要:
A method of reducing parametric variation in an integrated circuit (IC) chip and an IC chip with reduced parametric variation. The method includes: on a first wafer having a first arrangement of chips, each IC chip divided into a second arrangement of regions, measuring a test device parameter of test devices distributed in different regions; and on a second wafer having the first arrangement of IC chips and the second arrangement of regions, adjusting a functional device parameter of identically designed field effect transistors within one or more regions of all IC chips of the second wafer based on a values of the test device parameter measured on test devices in regions of the IC chip of the first wafer by a non-uniform adjustment of physical or metallurgical polysilicon gate widths of the identically designed field effect transistors from region to region within each IC chip.
摘要:
Methods for applying topographically compensated film in a semiconductor wafer fabrication process are disclosed. The processes include premapping a surface of a wafer so as to determine the local topography (e.g., z-height) of the wafer and then applying a variable depth of a film to the wafer, such that the variable depth is modulated based on the local topography of the wafer. The resultant topography of the applied film and wafer is substantially planar (e.g., within approximately 100 nm) across the wafer.
摘要:
A lithographic structure comprising: an organic antireflective material disposed on a substrate; and a silicon antireflective material disposed on the organic antireflective material. The silicon antireflective material comprises a crosslinked polymer with a SiOx backbone, a chromophore, and a transparent organic group that is substantially transparent to 193 nm or 157 nm radiation. In combination, the organic antireflective material and the silicon antireflective material provide an antireflective material suitable for deep ultraviolet lithography. The invention is also directed to a process of making the lithographic structure.