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 method is provided for preparing a substrate for photolithographic patterning. The method includes providing a substrate having at least an exposed rough surface layer including a polymeric material. The rough surface layer has surface features characterized by feature step height varying between about two percent and twenty percent of the minimum photolithographic half-pitch. A layer of photoresist material is then provided over the exposed rough surface layer and patterned.
摘要:
A method and apparatus are provided for improving the leveling and, consequently, the focusing of a substrate such as a wafer during the photolithography imaging procedure of a semiconductor manufacturing process. The invention performs a pre-scan of the wafer's topography and assigns importance values to different regions of the wafer surface. Exposure focus instructions are calculated based on the topography and importance values of the different regions and the wafer is then scanned and imaged based on the calculated exposure focus instructions.
摘要:
A structure. The structure includes: a hole layer; a hole layer including a top hole layer surface, wherein the hole layer has a thickness in a first direction that is perpendicular to the hole layer surface; a bottom antireflective coating (BARC) layer on and in direct physical contact with the hole layer at the top hole layer surface; a photoresist layer on and in direct physical contact with the BARC layer, wherein a continuous hole in the first direction extends completely through the photoresist layer, the BARC layer, and the hole layer; and a polymerized hole shrinking region in direct physical contact with the photoresist layer at a lateral surface of the photoresist layer and with the hole layer at the top hole layer surface, wherein the hole shrinking region does not extend below the hole layer surface in a direction from the BARC layer to the hole layer.
摘要:
A method and a structure. The structure includes: a solid core comprising a first photoresist material, the core having a bottom surface on a substrate, a top surface and opposite first and second side surfaces between the top surface and the bottom surface; and a shell comprising a second photoresist material, the shell on the top surface of the substrate, the shell containing a cavity open to the top surface of the substrate, the shell formed over the top surface and the first and second side surfaces walls of the core, the core completely filling the cavity. The core is stiffer than the shell. The method includes: forming the core from a first photoresist layer and forming the shell from a second photoresist layer applied over the core. The core may be cross-linked to increase its stiffness.
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 controlling one or more critical dimension (CD) features, dependent upon at least a first and a second processing parameter, with a single metrology step, while still enabling decoupled feedback to the first and the second processing parameter, includes an initial process characterization; producing a production piece; a single metrology step to determine the critical dimensions of the produced features; solving a system of equations simultaneously for individual feedback correction values for the first and second processing parameters; and applying the individual feedback correction values to their respective processing parameters.
摘要:
A structure. The structure includes: a hole layer; a hole layer including a top hole layer surface, wherein the hole layer has a thickness in a first direction that is perpendicular to the hole layer surface; a bottom antireflective coating (BARC) layer on and in direct physical contact with the hole layer at the top hole layer surface; a photoresist layer on and in direct physical contact with the BARC layer, wherein a continuous hole in the first direction extends completely through the photoresist layer, the BARC layer, and the hole layer; and a polymerized hole shrinking region in direct physical contact with the photoresist layer at a lateral surface of the photoresist layer and with the hole layer at the top hole layer surface, wherein the hole shrinking region does not extend below the hole layer surface in a direction from the BARC layer to the hole layer.
摘要:
A method and a structure. The structure includes: a solid core comprising a first photoresist material, the core having a bottom surface on a substrate, a top surface and opposite first and second side surfaces between the top surface and the bottom surface; and a shell comprising a second photoresist material, the shell on the top surface of the substrate, the shell containing a cavity open to the top surface of the substrate, the shell formed over the top surface and the first and second side surfaces walls of the core, the core completely filling the cavity. The core is stiffer than the shell. The method includes: forming the core from a first photoresist layer and forming the shell from a second photoresist layer applied over the core. The core may be cross-linked to increase its stiffness.
摘要:
A structure and a method for forming the same. The method includes providing a structure including (a) a hole layer, and (b) a pattern transfer layer on and in direct physical contact with the hole layer, wherein the pattern transfer layer comprises a pattern transfer layer hole; depositing an acid supply layer on a side wall of the pattern transfer layer hole; transferring acids from the acid supply layer to an acid storage region in the pattern transfer layer abutting the side wall of the pattern transfer layer hole after said depositing is performed; removing the acid supply layer after said transferring is performed; and performing a chemical shrinking process to the pattern transfer layer hole utilizing the acids from the acid storage region after said removing is performed so as to shrink the pattern transfer layer hole.