摘要:
A method of forming an interconnection in a semiconductor device includes forming a first liner in a dielectric layer therein; depositing a tungsten filler on top of the first liner; performing chemical mechanical planarization (CMP) to smooth out and remove the first liner and tungsten filler from the semiconductor's exposed surface; selectively removing the first liner and tungsten filler in the via; wherein the selective removing results in the first liner and the tungsten filler being removed in an upper region of the via; forming a second liner in the upper region of the via and tungsten filler; selectively removing the second liner from the tungsten filler; forming a copper seed layer on top of the tungsten filler; depositing a copper filler on top of the copper seed layer; and performing chemical CMP to smooth out and remove the second liner and copper filler from the semiconductor's exposed surface.
摘要:
A method of forming an interconnection in a semiconductor device includes forming a first liner in a dielectric layer therein; depositing a tungsten filler on top of the first liner; performing chemical mechanical planarization (CMP) to smooth out and remove the first liner and tungsten filler from the semiconductor's exposed surface; selectively removing the first liner and tungsten filler in the via; wherein the selective removing results in the first liner and the tungsten filler being removed in an upper region of the via; forming a second liner in the upper region of the via and tungsten filler; selectively removing the second liner from the tungsten filler; forming a copper seed layer on top of the tungsten filler; depositing a copper filler on top of the copper seed layer; and performing chemical CMP to smooth out and remove the second liner and copper filler from the semiconductor's exposed surface.
摘要:
A method of forming a magnetic domain wall memory apparatus with write/read capability includes forming a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic material having a plurality of magnetic domains therein, the shift register structures further having a plurality of discontinuities therein to facilitate domain wall location: forming a magnetic read element associated with each of the shift register structures: and forming a magnetic write element associated with each of the shift register structures, the magnetic write element further comprising a write wire having a constriction therein, the constriction located at a point corresponding to the location of one of the plurality of discontinuities in the associated shift register structure.
摘要:
A magnetic domain wall memory apparatus with write/read capability includes a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic material having a plurality of magnetic domains therein, the shift register structures further having a plurality of discontinuities therein to facilitate domain wall location; a magnetic read element associated with each of the shift register structures; and a magnetic write element associated with each of the shift register structures, the magnetic write element further comprising a write wire having a constriction therein, the constriction located at a point corresponding to the location of the plurality of discontinuities in the associated shift register structure.
摘要:
An electrostatic wafer holding apparatus includes an electrostatic chucking pedestal and a bi-directional backside conduit in fluid communication with a backside of the chucking pedestal. The bi-directional backside conduit is in fluid communication with a backside carrier gas supply line, and is further in fluid communication with a vacuum supply line.
摘要:
A method for selective electroplating of a semiconductor input/output (I/O) pad includes forming a titanium-tungsten (TiW) layer over a passivation layer on a semiconductor substrate, the TiW layer further extending into an opening formed in the passivation layer for exposing the I/O pad, such that the TiW layer covers sidewalls of the opening and a top surface of the I/O pad. A seed layer is formed over the TiW layer, and portions of the seed layer are selectively removed such that remaining seed layer material corresponds to a desired location of interconnect metallurgy for the I/O pad. At least one metal layer is electroplated over the remaining seed layer material, using the TiW layer as a conductive electroplating medium.
摘要:
A magnetic domain wall memory apparatus with write/read capability includes a plurality of coplanar shift register structures each comprising an elongated track formed from a ferromagnetic material having a plurality of magnetic domains therein, the shift register structures further having a plurality of discontinuities therein to facilitate domain wall location; a magnetic read element associated with each of the shift register structures; and a magnetic write element associated with each of the shift register structures, the magnetic write element further comprising a single write wire having a longitudinal axis substantially orthogonal to a longitudinal axis of each of the coplanar shift register structures.
摘要:
An electrostatic wafer holding apparatus includes an electrostatic chucking pedestal and a bi-directional backside conduit in fluid communication with a backside of the chucking pedestal. The bi-directional backside conduit is in fluid communication with a backside carrier gas supply line, and is further in fluid communication with a vacuum supply line.
摘要:
A static redundancy arrangement for a circuit using a focused ion beam anti-fuse methodology which reduces the circuit layout area and the switching activity compared to a prior art dynamic redundancy scheme, resulting in less power, a simpler design and higher speed. Focused ion beam anti-fuse methodology is used to program redundancy for circuits, particularly wide I/O embedded DRAM macros. An anti-fuse array circuit is comprised of a plurality of anti-fuse programming elements, each of which comprises a latch circuit controlled by a set input signal, and an anti-fuse device which is programmed by a focused ion beam.