摘要:
A method for modifying the chemistry or microstructure of silicon-based technology via an annealing process is provided. The method includes depositing a reactive material layer within a selected proximity to an interconnect, igniting the reactive material layer, and annealing the interconnect via heat transferred from the ignited reactive material layer. The method can also be implemented in connection with a silicide/silicon interface as well as a zone of silicon-based technology.
摘要:
A system for determining an amount of radiation includes a dosimeter configured to receive the amount of radiation, the dosimeter comprising a circuit having a resonant frequency, such that the resonant frequency of the circuit changes according to the amount of radiation received by the dosimeter, the dosimeter further configured to absorb RF energy at the resonant frequency of the circuit; a radio frequency (RF) transmitter configured to transmit the RF energy at the resonant frequency to the dosimeter; and a receiver configured to determine the resonant frequency of the dosimeter based on the absorbed RF energy, wherein the amount of radiation is determined based on the resonant frequency.
摘要:
A semiconductor device or a photovoltaic cell having a contact structure, which includes a silicon (Si) substrate; a metal alloy layer deposited on the silicon substrate; a metal silicide layer and a diffusion layer formed simultaneously from thermal annealing the metal alloy layer; and a metal layer deposited on the metal silicide and barrier layers.
摘要:
A semiconductor device or a photovoltaic cell having a contact structure, which includes a silicon (Si) substrate; a metal alloy layer deposited on the silicon substrate; a metal silicide layer and a diffusion layer formed simultaneously from thermal annealing the metal alloy layer; and a metal layer deposited on the metal silicide and barrier layers.
摘要:
A method for forming an interconnect structure includes forming a dielectric layer above a first layer having a conductive region defined therein. An opening is defined in the dielectric layer to expose at least a portion of the conductive region. A metal silicide is formed in the opening to define the interconnect structure. A semiconductor device includes a first layer having a conductive region defined therein, a dielectric layer formed above the first layer, and a metal silicide interconnect structure extending through the dielectric layer to communicate with the conductive region.
摘要:
A metal interconnect structure and a method of manufacturing the metal interconnect structure. Manganese (Mn) is incorporated into a copper (Cu) interconnect structure in order to modify the microstructure to achieve bamboo-style grain boundaries in sub-90 nm technologies. Preferably, bamboo grains are separated at distances less than the “Blech” length so that copper (Cu) diffusion through grain boundaries is avoided. The added Mn also triggers the growth of Cu grains down to the bottom surface of the metal line so that a true bamboo microstructure reaching to the bottom surface is formed and the Cu diffusion mechanism along grain boundaries oriented along the length of the metal line is eliminated.
摘要:
A structure for reduction of soft error rates in integrated circuits. The structure including: a semiconductor substrate; and a stack of one or more wiring levels stacked from a lowermost wiring level to an uppermost wiring level, the lowermost wiring level nearer the semiconductor substrate than the uppermost wiring level; and an alpha particle blocking layer on a top surface of the uppermost wiring level of the one or more wiring levels, the blocking layer comprising metal wires and a dielectric material, the blocking layer having a combination of a thickness of the blocking layer and a volume percent of metal wires in the blocking layer sufficient to stop a predetermined percentage of alpha particles of a selected energy or less striking the blocking layer from penetrating into the stack of one or more wiring levels or the substrate.
摘要:
A structure and system for forming the structure. The structure includes a semiconductor chip and an interposing shield having a top side and a bottom side. The semiconductor chip includes N chip electric pads, wherein N is a positive integer of at least 2. The N chip electric pads are electrically connected to a plurality of devices on the semiconductor chip. The electric shield includes 2N electric conductors and N shield electric pads. Each shield electrical pad is in electrical contact and direct physical contact with a corresponding pair of electric conductors of the 2N electric conductors. The interposing shield includes a shield material. The shield material includes a first semiconductor material. The semiconductor chip is bonded to the top side of the interposing shield. Each chip electric pads is in electrical contact and direct physical contact with a corresponding shield electrical pad of the N shield electric pads.
摘要:
Cobalt is added to a copper seed layer, a copper plating layer, or a copper capping layer in order to modify the microstructure of copper lines and vias. The cobalt can be in the form of a copper-cobalt alloy or as a very thin cobalt layer. The grain boundaries configured in bamboo microstructure in the inventive metal interconnect structure shut down copper grain boundary diffusion. The composition of the metal interconnect structure after grain growth contains from about 1 ppm to about 10% of cobalt in atomic concentration. Grain boundaries extend from a top surface of a copper-cobalt alloy line to a bottom surface of the copper-cobalt alloy line, and are separated from any other grain boundary by a distance greater than a width of the copper-cobalt alloy line.
摘要:
A structure fabrication method. First, an integrated circuit including N chip electric pads is provided electrically connected to a plurality of devices on the integrated circuit. Then, an interposing shield having a top side and a bottom side and having N electric conductors in the interposing shield is provided being exposed to a surrounding ambient at the top side but not at the bottom side. Next, the integrated circuit is bonded to the top side of the interposing shield such that the N chip electric pads are in electrical contact with the N electric conductors. Next, the bottom side of the interposing shield is polished so as to expose the N electric conductors to the surrounding ambient at the bottom side of the interposing shield. Then, N solder bumps are formed on the polished bottom side of the interposing shield and in electrical contact with the N electric conductors.