摘要:
A method of forming a stochastically based integrated circuit encryption structure includes forming a lower conductive layer over a substrate, forming a short prevention layer over the lower conductive layer, forming an intermediate layer over the short prevention layer, wherein the intermediate layer is characterized by randomly structured nanopore features. An upper conductive layer is formed over the random nanopore structured intermediate layer. The upper conductive layer is patterned into an array of individual cells, wherein a measurable electrical parameter of the individual cells has a random distribution from cell to cell with respect to a reference value of the electrical parameter.
摘要:
A method and an apparatus are provided in which non-directional and directional metal (e.g. Ni) deposition steps are performed in the same process chamber. A first plasma is formed for removing material from a target; a secondary plasma for increasing ion density in the material is formed in the interior of an annular electrode (e.g. a Ni ring) connected to an RF generator. Material is deposited non-directionally on the substrate in the absence of the secondary plasma and electrical biasing of the substrate, and deposited directionally when the secondary plasma is present and the substrate is electrically biased. Nickel silicide formed from the deposited metal has a lower gate polysilicon sheet resistance and may have a lower density of pipe defects than NiSi formed from metal deposited in a solely directional process, and has a lower source/drain contact resistance than NiSi formed from metal deposited in a solely non-directional process.
摘要:
A MEM switch is described having a free moving element within in micro-cavity, and guided by at least one inductive element. The switch consists of an upper inductive coil; an optional lower inductive coil, each having a metallic core preferably made of permalloy; a micro-cavity; and a free-moving switching element preferably also made of magnetic material. Switching is achieved by passing a current through the upper coil, inducing a magnetic field in the coil element. The magnetic field attracts the free-moving magnetic element upwards, shorting two open wires and thus, closing the switch. When the current flow stops or is reversed, the free-moving magnetic element drops back by gravity to the bottom of the micro-cavity and the wires open. When the chip is not mounted with the correct orientation, gravity cannot be used. In such an instance, a lower coil becomes necessary to pull the free-moving switching element back and holding it at its original position.
摘要:
A method of forming silicide contacts for semiconductor devices includes subjecting a silicon containing semiconductor wafer to a degas treatment at an initial degas temperature of about 250 to about 400° C., transferring the semiconductor wafer from a degas chamber to a deposition chamber, depositing a nickel containing layer over the wafer following transfer of the wafer from the degas chamber to the deposition chamber, and annealing the semiconductor wafer so as to create silicide regions at portions on the wafer where nickel material is formed over silicon.
摘要:
Methods are provided for fabricating semiconductor IC (integrated circuit) chips having high-Q on-chip inductors formed on the chip backside and connected to integrated circuits on the chip frontside using through-wafer interconnects. For example, a semiconductor device with a backside integrated inductor includes a semiconductor substrate having a frontside, a backside and a buried insulating layer interposed between the front and backsides of the substrate. An integrated circuit is formed on the frontside of the semiconductor substrate and an integrated inductor is formed on the backside of the semiconductor substrate. An interconnection structure is formed through the buried insulating layer to connect the integrated inductor to the integrated circuit. The semiconductor substrate may be an SOI (silicon on insulator) structure.
摘要:
A method of forming a salicide on a semiconductor device includes depositing a first refractory metal layer over a silicon region of a substrate, depositing a near-noble metal layer over the first refractory metal layer, and depositing a second refractory metal layer over the near-noble metal layer. The semiconductor device is annealed in a first annealing process to form a silicide layer abutting the doped region of the semiconductor device. Un-reacted portions of the near-noble metal layer and the second refractory metal layer are removed. The device may be annealed in an optional second annealing process to convert the silicide layer to a low resistance phase silicide material. Junction leakage and bridging are minimized or eliminated by embodiments of the present invention, and a smoother silicided surface is achieved.
摘要:
A metal-insulator-metal (MIM) capacitor (242/252) structure and method of forming the same. A dielectric layer (214) of a semiconductor device (200) is patterned with a dual damascene pattern having a first pattern (216) and a second pattern (218). The second pattern (218) has a greater depth than the first pattern (216). A conductive layer (226) is formed over the dielectric layer (214) in the first pattern, and a conductive layer is formed over the conductive layer in the first pattern (216). A dielectric layer (232), conductive layer (234), dielectric layer (236) and conductive layer (238) are disposed over the conductive layer (226) of the second pattern (218). Conductive layer (234), dielectric layer (232) and conductive layer (226) form a first MIM capacitor (252). Conductive layer (238), dielectric layer (236) and conductive layer (234) form a second MIM capacitor (242) parallel to the first MIM capacitor (242).
摘要:
A semiconductor device includes a substrate and a gate stack disposed on the substrate. An upper layer of the gate stack is a metal gate conductor and a lower layer of the gate stack is a gate dielectric. A gate contact is in direct contact with the metal gate conductor.
摘要:
FinFETs are merged together by a metal. The method of manufacturing the FinFETs include forming a plurality of fin bodies on a substrate and merging the fin bodies with a metal. The method further includes implanting source and drain regions through the metal.
摘要:
A method of forming a semiconductor device structure includes forming an interlevel dielectric (ILD) layer over a semiconductor substrate and a dummy transistor gate structure formed on the substrate; infusing a shallow gas cluster ion beam (GCIB) layer in a top portion of the ILD layer; and removing at least one layer from the dummy transistor gate structure, wherein the at least one layer comprises a same material as the ILD layer and wherein the GCIB layer has a slower etch rate with respect to the ILD layer.