摘要:
The invention is the technology of providing a packaging intermediate product that can serve as an interface substrate that is to be positioned between different circuitry types where the dimensions are approaching the sub 100 micrometer range. The invention involves a dielectric wafer structure where the first and second area surfaces of the wafer are separated by a distance that is of the order of the electrical via design length, and an array of spaced vias through the wafer arranged with each via filled with metal surrounded by a chemical metal deposition promoting layer with each via terminating flush with a wafer surface. The wafer structure is achieved by forming an array of blind via openings through the first surface of the dielectric wafer to a depth approaching the via design length, lining the walls for adhesion enhancement, filling the blind via openings completely with a chemically deposited metal, removing material at the first wafer surface thereby planarizing the filled vias, and removing material at the second wafer surface thereby exposing the vias at the design length.
摘要:
Often used to reduce the RC delay in integrated circuits are dielectric films of porous organosilicates which have a silica like backbone with alkyl or aryl groups (to add hydrophobicity to the materials and create free volume) attached directly to the Si atoms in the network. Si—R bonds rarely survive an exposure to plasmas or chemical treatments commonly used in processing; this is especially the case in materials with an open cell pore structure. When Si—R bonds are broken, the materials lose hydrophobicity, due to formation of hydrophilic silanols and low dielectric constant is compromised. A method by which the hydrophobicity of the materials is recovered using a novel class of silylation agents which may have the general formula (R2N)XSiR′Y where X and Y are integers from 1 to 3 and 3 to 1 respectively, and where R and R′ are selected from the group of hydrogen, alkyl, aryl, allyl and a vinyl moiety. Mechanical strength of porous organosilicates is also improved as a result of the silylation treatment.
摘要:
A structure for a semiconductor components is provided having a device layer sandwiched on both sides by other active, passive, and interconnecting components. A wafer-level layer transfer process is used to create this planar (2D) IC structure with added functional enhancements.
摘要:
Plasma damage in ultra low k dielectric materials during formation of a dual damascene metal interconnect structure is reduced by providing a protective spacer on sidewalls of a line trench. A densified trench bottom region may be additionally formed directly beneath an exposed horizontal surface of the line trench. The protective spacer and/or the densified trench bottom region protects an ultra low k intermetal dielectric layer from plasma damage during a plasma strip process that is used to remove a disposable via fill plug employed in the dual damascene metal interconnect structure.
摘要:
Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided. The programmable via device comprises a first dielectric layer; a heater over the first dielectric layer; an air gap separating at least a portion of the heater from the first dielectric layer; an isolation layer over the first dielectric layer covering at least a portion of the heater; a capping layer over a side of the isolation layer opposite the first dielectric layer; at least one programmable via extending through the capping layer and at least a portion of the isolation layer and in contact with the heater, the programmable via comprising at least one phase change material; a conductive cap over the programmable via; a second dielectric layer over a side of the capping layer opposite the isolation layer; a first conductive via and a second conductive via, each extending through the second dielectric layer, the capping layer and at least a portion of the isolation layer and in contact with the heater; and a third conductive via extending through the second dielectric layer and in contact with the conductive cap.
摘要:
A method for fabricating an interconnect structure for interconnecting a semiconductor substrate to have three distinct patterned structures such that the interconnect structure provides both a low k and high structural integrity. The method includes depositing an interlayer dielectric onto the semiconductor substrate, forming a first pattern within the interlayer dielectric material by a first lithographic process that results in both via features and ternary features being formed in the interconnect structure. The method further includes forming a second pattern within the interlayer dielectric material by a second lithographic process to form line features within the interconnect structure. Hence the method forms the three separate distinct patterned structures using only two lithographic processes for each interconnect level.
摘要:
A method of forming a self aligned pattern on an existing pattern on a substrate including applying a coating of a solution containing a masking material in a carrier, the masking material being either photo or thermally sensitive; performing a blanket exposure of the substrate; and allowing at least a portion of the masking material to preferentially develop in a fashion that replicates the existing pattern of the substrate. The existing pattern includes a first set of regions of the substrate having a first reflectivity and a second set of regions of the substrate having a second reflectivity different from the first composition. The first set of regions can include one or more metal elements and the second set of regions can include one or more dielectrics. Structures made in accordance with the method. A low resolution mask is used to block out regions over the substrate. Additionally, the resist can be applied over another masking layer that contains a separate pattern.
摘要:
Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided. The programmable via device comprises a first dielectric layer; a heater over the first dielectric layer; an air gap separating at least a portion of the heater from the first dielectric layer; an isolation layer over the first dielectric layer covering at least a portion of the heater; a capping layer over a side of the isolation layer opposite the first dielectric layer; at least one programmable via extending through the capping layer and at least a portion of the isolation layer and in contact with the heater, the programmable via comprising at least one phase change material; a conductive cap over the programmable via; a second dielectric layer over a side of the capping layer opposite the isolation layer; a first conductive via and a second conductive via, each extending through the second dielectric layer, the capping layer and at least a portion of the isolation layer and in contact with the heater; and a third conductive via extending through the second dielectric layer and in contact with the conductive cap.
摘要:
Programmable via devices and methods for the fabrication thereof are provided. In one aspect, a programmable via device is provided. The programmable via device comprises a first dielectric layer; at least one isolation layer over the first dielectric layer; a heater within the isolation layer; a capping layer over a side of the isolation layer opposite the first dielectric layer; at least one programmable via extending through the capping layer and at least a portion of the isolation layer and in contact with the heater, the programmable via comprising at least one phase change material; a conductive cap over the programmable via; a second dielectric layer over a side of the capping layer opposite the isolation layer; a first conductive via and a second conductive via, each extending through the second dielectric layer, the capping layer and at least a portion of the isolation layer and in contact with the heater; and a third conductive via extending through the second dielectric layer and in contact with the conductive cap.
摘要:
A structure for a semiconductor components is provided having a device layer sandwiched on both sides by other active, passive, and interconnecting components. A wafer-level layer transfer process is used to create this planar (2D) IC structure with added functional enhancements.