摘要:
A metal polishing slurry includes a chemical solution and abrasives characterized by a bimodal or other multimodal distribution of particle sizes or a prevalence of two or more particle sizes or ranges of particle sizes. A method and system for using the slurry in a CMP polishing operation, are also provided.
摘要:
A wafer thinning apparatus includes a first metrology tool configured to measure an initial thickness of the wafer. The wafer thinning apparatus further includes a controller connected to the first metrology tool, and configured to determine a polishing time based on the initial thickness, a predetermined thickness and a material removal rate. The wafer thinning apparatus further includes a polishing tool connected to the controller configured to polish the wafer for a period of time equal to the polishing time. The wafer thinning apparatus includes a second metrology tool connected to the controller and the polishing tool, and configured to measure a polished thickness. The controller is configured to update the material removal rate based on the polished thickness, the predetermined thickness and the polishing time.
摘要:
Methods of thinning a plurality of semiconductor wafers and apparatuses for carrying out the same are disclosed. A grinding module within a set of grinding modules receives and grinds a semiconductor wafer. A polishing module receives the semiconductor wafer from the grinding module and polishes the wafer. The polishing module is configured to polish the semiconductor wafer in less time than the grinding module is configured to grind the corresponding wafer.
摘要:
A wafer edge trim blade includes a round blade body and at least one slot formed inward from an outside edge of the round blade body. The at least one slot is configured to remove debris generated during wafer edge trimming using the wafer edge trim blade.
摘要:
A semiconductor contact structure and method provide contact structures that extend through a dielectric material and provide contact to multiple different subjacent materials including a silicide material and a non-silicide material such as doped silicon. The contact structures includes a lower composite layer formed using a multi-step ionized metal plasma (IMP) deposition operation. A lower IMP film is formed at a high AC bias power followed by the formation of an upper IMP film at a lower AC bias power. The composite layer may be formed of titanium. A further layer is formed as a liner over the composite layer and the liner layer may advantageously be formed using CVD and may be TiN. A conductive plug material such as tungsten or copper fills the contact openings.
摘要:
This description relates to a sensing product formed using a substrate with a plurality of epi-layers. At least a first epi-layer has a different composition than the composition of a second epi-layer. The sensing product optionally includes at least one radiation sensing element in the second epi-layer and optionally an interconnect structure over the second epi-layer. The sensing product is formed by removing the substrate and all epi-layers other than the second epi-layer. A light incident surface of the second epi-layer has a total thickness variation of less than about 0.15 μm.
摘要:
A semiconductor manufacturing apparatus includes at least one inner retaining ring, and an outer retaining ring. The at least one inner retaining ring applies a first pressure to the polishing pad, and retains a substrate on the polishing pad. The outer retaining ring applies a second pressure to the polishing pad, and retains the at least one inner retaining ring on the polishing pad. Control of the first pressure is independent with respect to control of the second pressure.
摘要:
A method for making a conditioner disk used in a chemical mechanical polishing (CMP) process comprises applying a first layer of at least one binder over a substrate; disposing a plurality of diamond particles on the first layer of the at least one first binder at the plurality of locations; and fixing the plurality of diamond particles to the substrate by heating the substrate to a raised temperature and then cooling the substrate. The plurality of diamond particles disposed over the substrate are configured to provide a working diamond ratio higher than 50% when the conditioner disk is used in a CMP process.
摘要:
An image sensor includes a substrate having opposite first and second sides, a multilayer structure on the first side of the substrate, and a photo-sensitive element on the second side of the substrate. The photo-sensitive element is configured to receive light that is incident upon the first side and transmitted through the multilayer structure and the substrate. The multilayer structure includes first and second light transmitting layers. The first light transmitting layer is sandwiched between the substrate and the second light transmitting layer. The first light transmitting layer has a refractive index that is from 60% to 90% of a refractive index of the substrate. The second light transmitting layer has a refractive index that is lower than the refractive index of the first light transmitting layer and is from 40% to 70% of the refractive index of the substrate.
摘要:
A semiconductor device is disclosed. The device includes a substrate; a first metal layer overlying the substrate; a dielectric layer overlying the first metal layer; and a second metal layer overlying the dielectric layer, wherein the first metal layer comprises: a first body-centered cubic lattice metal layer; a first underlayer, underlying the first body-centered cubic lattice metal layer, wherein the first underlayer is metal of body-centered cubic lattice and includes titanium (Ti), tungsten (W), molybdenum (Mo) or niobium (Nb); and a first interface of body-centered cubic lattice between the first body-centered cubic lattice metal layer and the first underlayer.