Provided are: a conductive paste in which sinterability of silver particles the conductive paste can be easily controlled by using silver particles having predetermined crystal transformation characteristics defined by an XRD analysis, and after a sintering treatment, excellent electrical conductivity and thermal conductivity can be stably obtained; and a die bonding method using the conductive paste. Disclosed is a conductive paste which includes silver particles having a volume average particle size of 0.1 to 30 μm as a sinterable conductive material, and a dispersing medium for making a paste-like form, and in which when the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis before a sintering treatment of the silver particles is designated as S1, and the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis after a sintering treatment (250° C., 60 minutes) of the silver particles is designated as S2, the value of S2/S1 is adjusted to a value within the range of 0.2 to 0.8.

Provided are: a conductive paste in which sinterability of silver particles the conductive paste can be easily controlled by using silver particles having predetermined crystal transformation characteristics defined by an XRD analysis, and after a sintering treatment, excellent electrical conductivity and thermal conductivity can be stably obtained; and a die bonding method using the conductive paste. Disclosed is a conductive paste which includes silver particles having a volume average particle size of 0.1 to 30 μm as a sinterable conductive material, and a dispersing medium for making a paste-like form, and in which when the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis before a sintering treatment of the silver particles is designated as S1, and the integrated intensity of the peak at 2θ=38°±0.2° in the X-ray diffraction chart obtainable by an XRD analysis after a sintering treatment (250° C., 60 minutes) of the silver particles is designated as S2, the value of S2/S1 is adjusted to a value within the range of 0.2 to 0.8.

A solder paste that contains or consists of (i) 10-30% by weight of at least one type of particles that each contain a phosphorus fraction of >0 to ≦500 wt-ppm and are selected from copper particles, copper-rich copper/zinc alloy particles, and copper-rich copper/tin alloy particles, (ii) 60-80% by weight of at least one type of particles selected from tin particles, tin-rich tin/copper alloy particles, tin-rich tin/silver alloy particles, and tin-rich tin/copper/silver alloy particles, and (iii) 3-30% by weight solder flux, in which the mean particle diameter of metallic particles (i) and (ii) is ≦15 μm.

A method of manufacturing an electronic device is disclosed. An electronic unit is provided. The electronic unit has a chip and at least one bonding pin. The electronic unit is mounted on the substrate through the at least one bonding pin, and an adhesive material is applied to a space between the chip and the substrate.

A semiconductor package includes a first die pad, a first semiconductor die mounted on the first die pad, an encapsulant body of electrically insulating material that encapsulates first die pad and the first semiconductor die, a plurality of package leads that each protrude out of a first outer face of the encapsulant body, a connection lug that protrudes out of a second outer face of the encapsulant body, the second outer face being opposite from the first outer face. The first semiconductor die includes first and second voltage blocking terminals. The connection lug is electrically connected to one of the first and second voltage blocking terminals of the first semiconductor die. A first one of the package leads is electrically connected to an opposite one of the first and second voltage blocking terminals of the first semiconductor die that the first connection lug is electrically connected to.

A circuit package is provided, the circuit package including: an electronic circuit; a metal block next to the electronic circuit; encapsulation material between the electronic circuit and the metal block; a first metal layer structure electrically contacted to at least one first contact on a first side of the electronic circuit; a second metal layer structure electrically contacted to at least one second contact on a second side of the electronic circuit, wherein the second side is opposite to the first side; wherein the metal block is electrically contacted to the first metal layer structure and to the second metal layer structure by means of an electrically conductive medium; and wherein the electrically conductive medium includes a material different from the material of the first and second metal layer structures or has a material structure different from the material of the first and second metal layer structures.

A circuit package is provided, the circuit package including: an electronic circuit; a metal block next to the electronic circuit; encapsulation material between the electronic circuit and the metal block; a first metal layer structure electrically contacted to at least one first contact on a first side of the electronic circuit; a second metal layer structure electrically contacted to at least one second contact on a second side of the electronic circuit, wherein the second side is opposite to the first side; wherein the metal block is electrically contacted to the first metal layer structure and to the second metal layer structure by means of an electrically conductive medium; and wherein the electrically conductive medium includes a material different from the material of the first and second metal layer structures or has a material structure different from the material of the first and second metal layer structures.

A method of manufacturing an electronic device includes providing a substrate, providing an electronic unit having a chip and at least one bonding pin is provided, mounting the electronic unit on the substrate through the at least one bonding pin, and applying an adhesive material into a space between the chip and the substrate by a coating process after mounting the electronic unit on the substrate.

Invention compositions are a replacement for high melting temperature solder pastes and preforms in high operating temperature and step-soldering applications. In the use of the invention, a mixture of metallic powders reacts below 350 degrees C. to form a dense metallic joint that does not remelt at the original process temperature.

Invention compositions are a replacement for high melting temperature solder pastes and preforms in high operating temperature and step-soldering applications. In the use of the invention, a mixture of metallic powders reacts below 350 degrees C. to form a dense metallic joint that does not remelt at the original process temperature.