Abstract:
PROBLEM TO BE SOLVED: To provide a new temporary bonding methods and articles formed from those methods.SOLUTION: The methods comprise bonding a device wafer to a carrier wafer or substrate only at their outer perimeters in order to assist in protecting the device wafer and its device sites during subsequent processing and handling. The edge bonds formed by this method are chemically and thermally resistant, but can also be softened, dissolved, or mechanically disrupted to allow the wafers to be easily separated with very low force and at or near room temperature at the appropriate stage in the fabrication process.
Abstract:
PROBLEM TO BE SOLVED: To provide an article and a method that can reduce or eliminate the chances for device wafer breakage and internal device damage.SOLUTION: New demounting methods and apparatuses for separating temporarily, permanently, or semi-permanently bonded substrates and articles formed from those methods and apparatuses are provided. The method comprises demounting a device wafer from a carrier wafer or a substrate that have been strongly bonded only at their outer perimeters. Edge bonds are chemically, mechanically, acoustically, or thermally softened, dissolved, or disrupted to allow the wafers to be easily separated with very low forces and at or near room temperature at the appropriate stage in the fabrication process. A clamp for facilitating separation of the bonded substrates is also provided.
Abstract:
PROBLEM TO BE SOLVED: To provide an anti-reflective composition and a method of using the composition to form a circuit. SOLUTION: The composition comprises a polymer dissolved or dispersed in a solvent system. The polymer of the composition is generated by reacting an organic compound with a polymeric metal alkoxide, and the polymeric metal alkoxide includes a recurring unit having formula (I), wherein M is a metal individually selected from a group composed of titanium, zirconium, silicon and aluminum, each L is individually selected from a group consisting of diketo and alkoxide ligands, and the organic compound includes a functional group for coordinating with M of the polymeric metal alkoxide. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a novel, developer-soluble, hard mask composition and a method of using the composition to form a microelectronic structure.SOLUTION: The composition comprises a compound having the formula, a compound for controlling a development rate, and a crosslinking agent in a solvent system. The method involves applying the composition to a substrate and curing the composition. An imaging layer is applied to the composition, and subsequently, light exposure and developing, during which a light-exposed portion of the imaging layer and a hard mask composition adjacent to the light-exposed portion are removed, are performed. The size of the hard mask composition structure is controlled by the development rate, which yields a feature size that is a fraction of the imaging layer feature size, and finally gives a pattern that can ultimately be transferred to the substrate.
Abstract:
PROBLEM TO BE SOLVED: To provide things and methods for reducing or eliminating device wafer breakage and internal device damage.SOLUTION: A TiO-containing quartz glass substrate has the thermal expansion coefficient at 15-35°C within ±200 ppb/°C, the TiOconcentration of 4-9 wt.%, and the TiOconcentration distribution, in the surface vicinity region within 50 μm of depth from the substrate surface on the side where transfer patterns are formed, within ±1 wt.%.
Abstract:
PROBLEM TO BE SOLVED: To provide novel, wet developable anti-reflective coating compositions; and to provide methods of using those compositions.SOLUTION: The compositions comprise a polymer and/or oligomer having acid functional groups and dissolved in a solvent system along with a crosslinker and a photoacid generator. The acid functional group is a carboxylic acid, while the crosslinker is a vinyl ether crosslinker. In use, the compositions are applied to a substrate and thermally crosslinked. Upon exposure to light, the cured compositions will decrosslink, rendering them soluble in typical photoresist developing solutions (e.g., alkaline developers).
Abstract:
PROBLEM TO BE SOLVED: To provide an anti-reflective coating composition that does not crosslink prior to a bake stage in microlithographic processes so as to solve problems of spin bowl incompatibility and stability of an anti-reflective coating. SOLUTION: The anti-reflective composition includes a polymer dissolved or dispersed in a solvent system, a crosslinking agent, a light attenuating compound and a strong acid. The polymer is selected from a group consisting of acrylic polymers, polyesters, epoxy novolacs, polysaccharides, polyethers, polyimides and mixtures thereof. The crosslinking agent is selected from a group consisting of amino resin and epoxy resin. The light attenuating compound is selected from a group consisting of phenolic compounds, carboxylic acid, phosphoric acid, cyano compounds, benzene, naphthalene and anthracene. The composition contains the strong acid by less than 1.0 mass% based upon the total mass of the composition taken as 100 mass%. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer bonding layer system for temporarily bonding a semiconductor substrate.SOLUTION: In this bonding system, at least one layer is directly contacted with a semiconductor substrate, and at least two layers of this system are directly contacted with each other. Some processing options are provided for execution of a specific function by a different layer in a multilayer structure. The further importance is that performance of a thin-wafer handling solution can be improved by providing improvement in thermal stability, improvement in adaptability with a severe back face processing step, impact protection of a wafer front face by encapsulation, stress alleviation at a peeling step, and reduction in defects in the front face.