Patent classifications
H01L2224/3756
SEMICONDUCTOR DEVICE, POWER CONVERSION DEVICE, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
A semiconductor device includes: a substrate; a semiconductor element arranged on the substrate; a plate-like member electrically connected to the semiconductor element; a first electrode formed on the semiconductor element and joined to the plate-like member with solder; a second electrode formed on the semiconductor element and spaced from the first electrode, and including a metal capable of forming an alloy with the solder; and a metal film formed on the semiconductor element and spaced from the second electrode in a region on the first electrode side as seen from the second electrode, in a two-dimensional view of the semiconductor element as seen from the plate-like member, and including a metal capable of forming an alloy with the solder.
ELECTRICAL CONNECTION MEMBER, ELECTRICAL CONNECTION STRUCTURE, AND METHOD FOR MANUFACTURING ELECTRICAL CONNECTION MEMBER
An electrical connection member (1, 301, 401, 501, 601) includes a clad material (10, 110, 610) including at least both a first Cu layer (12) made of a Cu material and a low thermal expansion layer (11) made of an Fe material or Ni material having an average thermal expansion coefficient from room temperature to 300° C. smaller than that of the first Cu layer, the first Cu layer and the low thermal expansion layer being bonded to each other.
METHOD FOR CONNECTING COMPONENTS DURING PRODUCTION OF POWER ELECTRONIC MODULES OR ASSEMBLIES
In a method for connecting components during production of power electronics modules or assemblies, surfaces of the components have a metallic surface layer upon supply, or are furnished therewith, wherein the layer has a surface that is smooth enough to allow direct bonding or is smoothed to obtain a surface that is smooth enough to allow direct bonding. The surface layers of the surfaces that are to be connected are then pressed against each other with a pressure of at least 5 MPa at elevated temperature, so that they are joined to each other, forming a single layer. The method enables simple, rapid connection of even relatively large contact surfaces, which satisfies the high requirements of power electronics modules.
Semiconductor Die being Connected with a Clip and a Wire which is Partially Disposed Under the Clip
A semiconductor device includes a first carrier, a first external contact, a second external contact, and a first semiconductor die. The first semiconductor die has a first main face, a second main face opposite to the first main face, a first contact pad disposed on the first main face, a second contact pad disposed on the second main face, a third contact pad disposed on the second main face, and a vertical transistor. The first semiconductor die is disposed with the first main face on the first carrier. A clip connects the second contact pad and the second external contact. A first wire is connected with the first external contact. The first wire is disposed at least partially under the clip.
SEMICONDUCTOR PACKAGE USING CONDUCTIVE METAL STRUCTURE
Provided is a semiconductor package using a conductive metal structure, and more particularly, to a semiconductor package using a conductive metal structure formed in a clip or a column, through which a semiconductor chip and a lead of a lead frame are electrically connected to each other and an area where the semiconductor chip and the metal structure are adhered may be effectively improved so that productivity may increase and durability and electrical connection properties may be improved. The semiconductor package according to the present invention includes: a semiconductor chip; an aluminum pad formed on an upper part of the semiconductor chip; and a conductive metal structure adhered to the aluminum pad by a solder-based second adhesive layer, wherein the second adhesive layer includes intermetallic compounds (IMC) distributed to a lower fixed part thereof near the aluminum pad.
Porous Cu on Cu surface for semiconductor packages
A semiconductor package includes a plurality of metal leads and a semiconductor die attached to the plurality of metal leads by an interconnect. A surface of the plurality of metal leads, a metallized surface of the semiconductor die, and/or a surface of the interconnect comprises Cu and has a thermal conductivity in a range of 340 to 400 W/mK and an electrical conductivity in a range of 80 to 110% IACS. One or more of the surfaces which comprise Cu and have a thermal conductivity in the range of 340 to 400 W/mK and an electrical conductivity in the range of 80 to 110% IACS also includes micropores having a diameter in a range of 1 m to 10 m. A method of manufacturing a metal surface with such micropores also is described.
NANOWIRE INTERFACES
In some examples, a system comprises a first component having a first surface, a first set of nanoparticles coupled to the first surface, and a first set of nanowires extending from the first set of nanoparticles. The system also comprises a second component having a second surface, a second set of nanoparticles coupled to the second surface, and a second set of nanowires extending from the second set of nanoparticles. The system further includes an adhesive positioned between the first and second surfaces. The first and second sets of nanowires are positioned within the adhesive.
Porous Cu on Cu Surface for Semiconductor Packages
A semiconductor package includes a plurality of metal leads and a semiconductor die attached to the plurality of metal leads by an interconnect. A surface of the plurality of metal leads, a metallized surface of the semiconductor die, and/or a surface of the interconnect comprises Cu and has a thermal conductivity in a range of 340 to 400 W/mK and an electrical conductivity in a range of 80 to 110% IACS. One or more of the surfaces which comprise Cu and have a thermal conductivity in the range of 340 to 400 W/mK and an electrical conductivity in the range of 80 to 110% IACS also includes micropores having a diameter in a range of 1 m to 10 m. A method of manufacturing a metal surface with such micropores also is described.
Electrode terminal, semiconductor device, and power conversion apparatus
An electrode terminal includes a body and a first bonding part. The body includes a first metal material. Then, the first bonding part is bonded to one end of the body, and includes a second metal material which is a clad material other than the first metal material. The first bonding part is ultrasonically bondable to a first bonded member. An elastic part which is elastically deformable is provided between the one end of the body and the other end of the body.
Package with vertical interconnect between carrier and clip
A package comprising a chip carrier, an electronic chip on the chip carrier, a clip on the electronic chip, an encapsulant at least partially encapsulating the electronic chip, and an electrically conductive vertical connection structure provided separately from the clip and electrically connecting the chip carrier with the clip.