Patent classifications
Y10T428/12069
Bi-material strip and a method of bonding strips of different materials together
A continuous hot bonding method for producing a bi-material strip with a strong bond therebetween is provided. The method comprises sanding a first strip formed of steel; and applying a layer of first particles, typically formed of copper, to the sanded first strip. The method next includes heating the first strip and the layer of the first particles, followed by pressing a second strip formed of an aluminum alloy onto the heated layer of the first particles. The aluminum alloy of the second strip includes tin particles, and the heat causes the second particles to liquefy and dissolve into the melted first particles. The first particles and the second particles bond together to form bond enhancing metal particles, which typically comprise bronze.
HEAT DISSIPATION COMPONENT FOR SEMICONDUCTOR ELEMENT
A heat dissipation component for a semiconductor element includes: a composite part containing 50-80 vol % diamond powder with the remainder having metal including aluminum, the diamond powder having a particle diameter volume distribution first peak at 5-25 μm and a second peak at 55-195 μm. A ratio between a volume distribution area at particle diameters of 1-35 μm and a volume distribution area at particle diameters of 45-205 μm is 1:9 to 4:6; surface layers on both composite part principal surfaces, each of the surface layers containing 80 vol % or more metal including aluminum and having a film thickness of 0.03-0.2 mm; and a crystalline Ni layer and an Au layer on at least one of the surface layers, the crystalline Ni layer having a film thickness of 0.5-6.5 μm, and the Au layer having a film thickness of 0.05 μm or larger.
FLUID CONTACT PROCESS, COATED ARTICLE, AND COATING PROCESS
Fluid contact process, coated article, and coating processes are disclosed. The fluid contact process includes flowing a corrosive fluid to contact a coated article. The coated article includes an aluminum-containing substrate, a first region on the aluminum-containing substrate, the first region comprising carbon and silicon, a second region distal from the aluminum-containing substrate in comparison to the first region, the second region having oxygen at a greater concentration, by weight, than the first region, a third region distal from the first region in comparison to the second region, the third region comprising amorphous silicon. The coating process includes positioning the aluminum-containing substrate within an enclosed chamber, then, thermally decomposing dimethyl silane-and-silane-containing mixture within the enclosed chamber, then thermally oxidizing, and then, thermally decomposing silane.
Composite and multilayered silver films for joining electrical and mechanical components
A silver film for die attachment in the field of microelectronics, wherein the silver film is a multilayer structure comprising a reinforcing silver foil layer between two layers of sinterable particles. Each layer of sinterable particles comprises a mixture of sinterable silver particles and reinforcing particles. The reinforcing particles comprise glass and/or carbon and/or graphite particles. A method for die attachment using a silver film.
Coating laminated body and method for producing the same
An object of the invention is to provide a coating laminated body in which coatings not containing hexavalent chromium which is an environmental concern material, and excellent in corrosion resistance and wear resistance are laminated on a base material, and to provide a method for producing the same. The coating laminated body according to the invention is a laminated body in which a multiple-layer coating is laminated on a base material. The multiple-layer coating includes: a plurality of layers of S-containing Ni alloy coatings; and a sulfur concentrated layer that is formed between the plurality of layers of S-containing Ni alloy coatings and has an S concentration higher than an S concentration of the S-containing Ni alloy coatings. Each of the plurality of layers of S-containing Ni alloy coatings has a Ni concentration of 90% or more by mass, and a difference in Ni concentration between the coatings is within 1% by mass.
FLUID CONTACT PROCESS, COATED ARTICLE, AND COATING PROCESS
Fluid contact process, coated article, and coating processes are disclosed. The fluid contact process includes flowing a corrosive fluid to contact a coated article. The coated article includes an aluminum-containing substrate, a first region on the aluminum-containing substrate, the first region comprising carbon and silicon, a second region distal from the aluminum-containing substrate in comparison to the first region, the second region having oxygen at a greater concentration, by weight, than the first region, a third region distal from the first region in comparison to the second region, the third region comprising amorphous silicon. The coating process includes positioning the aluminum-containing substrate within an enclosed chamber, then, thermally decomposing dimethyl silane-and-silane-containing mixture within the enclosed chamber, then thermally oxidizing, and then, thermally decomposing silane.
FLUID CONTACT PROCESS, COATED ARTICLE, AND COATING PROCESS
Fluid contact process, coated article, and coating processes are disclosed. The fluid contact process includes flowing a corrosive fluid to contact a coated article. The coated article includes an aluminum-containing substrate, a first region on the aluminum-containing substrate, the first region comprising carbon and silicon, a second region distal from the aluminum-containing substrate in comparison to the first region, the second region having oxygen at a greater concentration, by weight, than the first region, a third region distal from the first region in comparison to the second region, the third region comprising amorphous silicon. The coating process includes positioning the aluminum-containing substrate within an enclosed chamber, then, thermally decomposing dimethyl silane-and-silane-containing mixture within the enclosed chamber, then thermally oxidizing, and then, thermally decomposing silane.
COMPOSITE AND MULTILA YERED SILVER FILMS FOR JOINING ELECTRICAL AND MECHANICAL COMPONENTS
A silver film for die attachment in the field of microelectronics, wherein the silver film is a multilayer structure comprising a reinforcing silver foil layer between two layers of sinterable particles. Each layer of sinterable particles comprises a mixture of sinterable silver particles and reinforcing particles. The reinforcing particles comprise glass and/or carbon and/or graphite particles. A method for die attachment using a silver film.
Coating Laminated Body and Method for Producing the Same
An object of the invention is to provide a coating laminated body in which coatings not containing hexavalent chromium which is an environmental concern material, and excellent in corrosion resistance and wear resistance are laminated on a base material, and to provide a method for producing the same. The coating laminated body according to the invention is a laminated body in which a multiple-layer coating is laminated on a base material. The multiple-layer coating includes: a plurality of layers of S-containing Ni alloy coatings; and a sulfur concentrated layer that is formed between the plurality of layers of S-containing Ni alloy coatings and has an S concentration higher than an S concentration of the S-containing Ni alloy coatings. Each of the plurality of layers of S-containing Ni alloy coatings has a Ni concentration of 90% or more by mass, and a difference in Ni concentration between the coatings is within 1% by mass.
Composite and multilayered silver films for joining electrical and mechanical components
Materials for die attachment such as silver sintering films may include reinforcing, modifying particles for enhanced performance. Methods for die attachment may involve the of such materials.