Abstract:
Some embodiments of the present disclosure relate to a method that achieves a substantially uniform pattern of magnetic random access memory (MRAM) cells with a minimum dimension below the lower resolution limit of some optical lithography techniques. A copolymer solution comprising first and second polymer species is spin-coated over a heterostructure which resides over a surface of a substrate. The heterostructure comprises first and second ferromagnetic layers which are separated by an insulating layer. The copolymer solution is subjected to self-assembly into a phase-separated material comprising a pattern of micro-domains of the second polymer species within a polymer matrix comprising the first polymer species. The first polymer species is then removed, leaving a pattern of micro-domains of the second polymer species. A pattern of magnetic memory cells within the heterostructure is formed by etching through the heterostructure while utilizing the pattern of micro-domains as a hardmask.
Abstract:
Some embodiments of the present disclosure relate to a method that achieves a substantially uniform pattern of discrete storage elements comprising a substantially equal size within a memory cell. A copolymer solution comprising first and second polymer species is spin-coated onto a surface of a substrate and subjected to self-assembly into a phase-separated material comprising a regular pattern of micro-domains of the second polymer species within a polymer matrix comprising the first polymer species. The first or second polymer species is then removed resulting with a pattern of micro-domains or the polymer matrix with a pattern of holes, which may be utilized as a hard-mask to form a substantially identical pattern of discrete storage elements through an etch, ion implant technique, or a combination thereof.
Abstract:
Some embodiments of the present disclosure relate to a method that achieves a substantially uniform pattern of magnetic random access memory (MRAM) cells with a minimum dimension below the lower resolution limit of some optical lithography techniques. A copolymer solution comprising first and second polymer species is spin-coated over a heterostructure which resides over a surface of a substrate. The heterostructure comprises first and second ferromagnetic layers which are separated by an insulating layer. The copolymer solution is subjected to self-assembly into a phase-separated material comprising a pattern of micro-domains of the second polymer species within a polymer matrix comprising the first polymer species. The first polymer species is then removed, leaving a pattern of micro-domains of the second polymer species. A pattern of magnetic memory cells within the heterostructure is formed by etching through the heterostructure while utilizing the pattern of micro-domains as a hardmask.
Abstract:
Some embodiments of the present disclosure relates to a hybrid gate dielectric layer that has good interface and bulk dielectric properties. Surface traps can degrade device performance and cause large threshold voltage shifts in III-N HEMTs. This disclosure uses a hybrid ALD (atomic layer deposited)-oxide layer which is a combination of H2O-based and O3/O2-based oxide layers that provide both good interface and good bulk dielectric properties to the III-N device. The H2O-based oxide layer provides good interface with the III-N surface, whereas the O3/O2-based oxide layer provides good bulk properties.
Abstract translation:本公开的一些实施例涉及具有良好的界面和体介电特性的混合栅极介电层。 表面捕集阱可能会降低器件性能,并在III-N HEMT中引起较大的阈值电压漂移。 本公开使用混合ALD(原子层沉积) - 氧化物层,其是基于H 2 O和O 3 / O 2的氧化物层的组合,其为III-N器件提供良好的界面和良好的体积介电性质。 H 2 O基氧化物层与III-N表面提供良好的界面,而O 3 / O 2基氧化物层提供良好的体积性质。
Abstract:
Some embodiments of the present disclosure relate to a method that achieves a substantially uniform pattern of discrete storage elements within a memory cell. A copolymer solution comprising first and second polymer species is spin-coated onto a surface of a substrate and subjected to self-assembly into a phase-separated material comprising a regular pattern of micro-domains of the second polymer species within a polymer matrix comprising the first polymer species. The second polymer species is then removed resulting with a pattern of holes within the polymer matrix. An etch is then performed through the holes utilizing the polymer matrix as a hard-mask to form a substantially identical pattern of holes in a dielectric layer disposed over a seed layer disposed over the substrate surface. Epitaxial deposition onto the seed layer then utilized to grow a substantially uniform pattern of discrete storage elements within the dielectric layer.
Abstract:
A method includes performing a plasma activation on a surface of a first package component, removing oxide regions from surfaces of metal pads of the first package component, and performing a pre-bonding to bond the first package component to a second package component.
Abstract:
An integrated circuit structure includes a package component, which further includes a non-porous dielectric layer having a first porosity, and a porous dielectric layer over and contacting the non-porous dielectric layer, wherein the porous dielectric layer has a second porosity higher than the first porosity. A bond pad penetrates through the non-porous dielectric layer and the porous dielectric layer. A dielectric barrier layer is overlying, and in contact with, the porous dielectric layer. The bond pad is exposed through the dielectric barrier layer. The dielectric barrier layer has a planar top surface. The bond pad has a planar top surface higher than a bottom surface of the dielectric barrier layer.
Abstract:
An integrated circuit structure includes a package component, which further includes a non-porous dielectric layer having a first porosity, and a porous dielectric layer over and contacting the non-porous dielectric layer, wherein the porous dielectric layer has a second porosity higher than the first porosity. A bond pad penetrates through the non-porous dielectric layer and the porous dielectric layer. A dielectric barrier layer is overlying, and in contact with, the porous dielectric layer. The bond pad is exposed through the dielectric barrier layer. The dielectric barrier layer has a planar top surface. The bond pad has a planar top surface higher than a bottom surface of the dielectric barrier layer.
Abstract:
Some embodiments of the present disclosure relates to a hybrid gate dielectric layer that has good interface and bulk dielectric properties. Surface traps can degrade device performance and cause large threshold voltage shifts in III-N HEMTs. This disclosure uses a hybrid ALD (atomic layer deposited)-oxide layer which is a combination of H2O-based and O3/O2-based oxide layers that provide both good interface and good bulk dielectric properties to the III-N device. The H2O-based oxide layer provides good interface with the III-N surface, whereas the O3/O2-based oxide layer provides good bulk properties.
Abstract translation:本公开的一些实施例涉及具有良好的界面和体介电特性的混合栅极介电层。 表面捕集阱可能会降低器件性能,并在III-N HEMT中引起较大的阈值电压漂移。 本公开使用混合ALD(原子层沉积) - 氧化物层,其是基于H 2 O和O 3 / O 2的氧化物层的组合,其为III-N器件提供良好的界面和良好的体积介电性质。 H 2 O基氧化物层与III-N表面提供良好的界面,而O 3 / O 2基氧化物层提供良好的体积性质。
Abstract:
A method includes performing a plasma activation on a surface of a first package component, removing oxide regions from surfaces of metal pads of the first package component, and performing a pre-bonding to bond the first package component to a second package component.