摘要:
An integrated circuit fabrication process including exposing a photoresist layer and providing a hydrophilic layer above the photoresist layer. The photoresist layer is exposed to a pattern of electromagnetic energy. The polymers in the hydrophilic layer can diffuse into the photoresist layer after provision of the hydrophilic layer. The diffusion can lead to plasticization of the photoresist layer polymers in exposed regions relative to unexposed regions. The process can be utilized to form a large variety of integrated circuit structures including gate structures and other features with wide process latitude and smooth feature side walls.
摘要:
A process for improving the accuracy of critical dimension measurements of features patterned on a photoresist layer using a scanning electron microscope (SEM) is disclosed herein. The process includes providing an electron beam to the photoresist layer and transforming the surface of the photoresist layer before the SEM inspection. The surface of the photoresist layer is transformed to trap the outgassing volatile species and dissipates built up charge in the photoresist layer, resulting in SEM images without poor image contrast.
摘要:
A methodology for forming a memory cell is disclosed, wherein an organic polymer layer is formed over a conductive layer and an electrode layer is formed over the organic polymer layer. A first via is etched into the electrode and organic polymer layers, and a dielectric material is applied over the stack to at least fill in the first via. A second via is then etched into the dielectric material so as to expose and make the electrode layer available as a top electrode. A wordline is then formed over the dielectric material such that the top electrode is connected to the wordline by way of the second via. A memory device formed in accordance with the disclosed methodology includes a top electrode formed over an organic polymer layer, a conductive layer under the organic polymer layer, a via defined by a dielectric material and located above the top electrode, and a wordline formed over the dielectric material such that the top electrode is connected to the wordline by way of the via.
摘要:
An integrated circuit fabrication process to pattern reduced feature size is disclosed herein. The process includes reducing the width of a patterned area of a patterned photoresist layer provided over a substrate before patterning the substrate. The patterned area is representative of a feature to be formed in the substrate. The width of the feature is reduced by an electron beam mediated heating and flowing of select areas of the patterned photoresist layer.
摘要:
A damascene structure and method of making the same in a low k dielectric material employs an imageable layer in which the damascene pattern is provided. The imageable layer is a convertible layer that upon exposure to the plasma etch that etches the low k dielectric material, converts the silicon-rich imageble layer into a mask layer containing silicon dioxide, for example. The low k dielectric material is protected from further etching by the mask thus created.
摘要:
The present invention provides a multi-layer organic memory device that can operate as a non-volatile memory device having a plurality of stacked and/or parallel memory structures constructed therein. A multi-cell and multi-layer organic memory component can be formed with two or more electrodes having a selectively conductive media between the electrodes forming individual cells, while utilizing a partitioning component to enable stacking of additional memory cells on top of or in association with previously formed cells. Memory stacks can be formed by adding additional layers—respective layers separated by additional partitioning components, wherein multiple stacks can be formed in parallel to provide a high-density memory device.
摘要:
There is provided a method of making plurality of features in a first layer. A photoresist layer is formed over the first layer. Dense regions in the photoresist layer are exposed through a first mask under a first set of illumination conditions. Isolated regions in the photoresist layer are exposed through a second mask different from the first mask under a second set of illumination conditions different from the first set of illumination conditions. The exposed photoresist layer is patterned and then the first layer is patterned using the patterned photoresist layer as a mask.
摘要:
The present invention provides a multi-layer organic memory device that can operate as a non-volatile memory device having a plurality of stacked and/or parallel memory structures constructed therein. A multi-cell and multi-layer organic memory component can be formed with two or more electrodes having a selectively conductive media between the electrodes forming individual cells, while utilizing a partitioning component to enable stacking of additional memory cells on top of or in association with previously formed cells. Memory stacks can be formed by adding additional layers—respective layers separated by additional partitioning components, wherein multiple stacks can be formed in parallel to provide a high-density memory device.
摘要:
An integrated circuit fabrication process is disclosed herein. The process includes exposing a photoresist layer to a plasma, and transforming the top surface and the side surfaces of the photoresist layer to form a hardened surface. The process further includes etching the substrate in accordance with the transformed feature, wherein an etch stability of the feature is increased by the hardened surface. The photoresist layer is provided at a thickness less than 0.25 &mgr;m, for use in deep ultraviolet lithography, or for use in extreme ultraviolet lithography.
摘要:
A process for forming sub-lithographic features in an integrated circuit is disclosed herein. The process includes modifying a photoresist layer after patterning and development but before it is utilized to pattern the underlying layers. The modified photoresist layer has different etch rates in the vertical and horizontal directions. The modified photoresist layer is trimmed with a plasma etch. A feature included in the trimmed photoresist layer has a sub-lithographic lateral dimension.