Abstract:
Metal layers including a metal M are selectively deposited on metal surfaces via chemical vapor deposition or atomic layer deposition from a hetero-pentadienyl metal complex precursor of formula (I), wherein L is a ligand; n is 1, 2 or 3; X is NR 1 , S(O)(O), S(O)(R 1 )(R 1 ), S(R 1 )(R 1 ), P(O)(R 1 ), P(R 1 )(R 1 )(R 1 ) or O; each R independently is hydrogen or a straight or branched chain C 1 -C 6 alkyl; each R 1 independently is hydrogen or a straight or branched chain C 1 -C 6 alkyl; and M is a first row late transition metal or a platinum group metal.
Abstract:
An integrated circuit (IC) device includes a die having an integrated passive device (IPD) layer. The integrated circuit device also includes a substrate supporting the die, a molding compound surrounding the die. The integrated circuit device further includes a backside conductive layer on a surface of the die that is distal from the IPD layer. The integrated circuit device also includes vias coupling the backside conductive layer to a ground plane through the molding compound.
Abstract:
Methods of lowering the capacitance of interconnect patterns comprising adjacent metal lines with differing metal compositions, are described. Those methods/structures may include providing a substrate comprising a first conductive interconnect structure comprising a first material, and a second interconnect structure comprising a second material, wherein the first and second conductive interconnect structures are disposed adjacent to one another on the substrate, forming an air gap disposed between the first and second conductive interconnect structures by utilizing a vapor phase etch process, and encapsulating the air gap with a low k dielectric material.
Abstract:
Techniques are disclosed for forming electrically conductive features with improved alignment and capacitance reduction. In accordance with some embodiments, individual conductive features may be formed over a semiconductor substrate by a subtractive process (e.g., subtractive patterning). For a given feature, first and second barrier layers (conformal or otherwise) may be disposed along sidewalls thereof, and a helmet-like hardmask body may be disposed over a top surface thereof. Additional conductive features can be formed between existing features, using the barrier layers as alignment spacers, thereby halving (or otherwise reducing) feature pitch. A layer of another hardmask material may be disposed over the additionally formed features. That layer and the helmet-like hardmask bodies may be of different material composition, providing for etch selectivity with respect to one another. Additional layer(s) can be formed over the resultant topography, exploiting the hardmask etch selectivity in forming interconnects for adjacent integrated circuit layers.
Abstract:
An embodiment includes a semiconductor apparatus comprising: a redistribution layer (RDL) including a patterned RDL line having two RDL sidewalls, the RDL comprising a material selected from the group comprising Cu and Au; protective sidewalls directly contacting the two RDL sidewalls; a seed layer including the material; and a barrier layer; wherein (a) the RDL line has a RDL line width orthogonal to and extending between the two RDL sidewalls, and (b) the seed and barrier layers each include a width parallel to and wider than the RDL line width. Other embodiments are described herein.
Abstract:
Various embodiments of the present invention are directed to a method for passivating a metal line (300, 301, 302, 310), e.g. a memory cell and a source line of a CBRAM, prior to removing a masking layer (106) in order to prevent oxidation of the metal line. The method includes exposing and reacting the metal line (e.g. copper) with a fluorine based etchant so as to form a protective film (400) composed of CuFx.
Abstract:
An integrated circuit (IC) substrate that includes a second patterned metal layer formed in between a first patterned metal layer is disclosed. A dielectric layer formed on the first patterned metal layer separates the two metal layers. A non-conductive layer is formed on the dielectric layer and the second patterned metal layer.
Abstract:
A semiconductor device including a plurality of copper interconnects. At least a first portion of the plurality of copper interconnects has a meniscus in a top surface. The semiconductor device also includes a plurality of air gaps, wherein each air gap of the plurality of air gaps is located between an adjacent pair of at least the first portion of the plurality of bit lines.