摘要:
A functional member having a molecular layer on its surface, wherein the molecular layer is formed through a coordinate bond, and the coordinate bond is a multidentate bond in which at least one molecule is bonded to one metallic atom of the member and two or more ligands of the molecule are coordinated.
摘要:
An electrically insulating film capable of maintaining a preferable insulating property even with a film thickness of only some &mgr;and a method for preparing the same are disclosed. The insulating film comprises a first layer formed on a surface of a conductor substrate of a transition metal and comprised of molecules fixed on the surface of the conductor substrate through chemical bonds such as transition metal-sulfur bonds or chelate bonds, and a second layer formed on the first layer and comprised of a resin bonded to the molecules of the first layer through covalent bonds.
摘要:
The present invention provides an organic ultra-thin film firmly fixed to a substrate with the film thickness ranging from tens of nm to hundreds of nm. The organic ultra-thin film comprises polymers fixed on a substrate by M2—O—A— bond in which A represents an Si, Ge, Ti, Sn or Zr atom in the polymer, and M2 represents an atom in the substrate) or by a coordinate bond, the polymers are combined with each other by —A1—O—A1′— bond in which A1 and A1′ are Si, Ge, Ti, Sn, Zr or S or by a coordinate bond.
摘要:
A flux for soft soldering is disclosed. It comprises a chelating agent as an activator for facilitating a connection of a conductor metal to a soft solder by removing an oxide film naturally formed on the surface of the conductor metal, and for securing insulating reliability after soft soldering by forming complexes with copper and tin which are insulating substance, and a solvent capable of dissolving the chelating agent and further preferably evaporating at soldering process.
摘要:
In a mounting structure including a first electrode and a second electrode electrically connected to each other via a conductive adhesive, the periphery of an adhesion portion between at least one of the electrodes and the conductive adhesive is covered with an electrical insulating layer, whereby the adhesion portion is reinforced from the periphery. The electrical insulating layer may be formed by dissolving a binder resin component of the conductive adhesive in a solvent. This increases the concentration of a conductive filler in the conductive adhesive, so that the conductivity of the adhesion portion is also enhanced.
摘要:
In mounting an electronic component using a conductive resin, a conductive resin containing a specific diluent component is used as the conductive resin, or a specific diluent component is applied to the conductive resin before being cured. This allows connection in a portion where an electrode (5) of an electronic component (4) and an electrode (2) of a circuit substrate (1) are opposed to each other to be provided via a resin (3a) containing a conductive filler as a main component, and allows connection at a lower surface of the electronic component (4) and connection in vicinities of the electrode (5) to be provided via a resin (3b, 3c) containing a binder resin as a main component that has oozed out of the conductive resin. The resin (3b, 3c) containing the binder resin as the main component increases junction strength.
摘要:
A conductive paste has conductive particles having metal particle surface coated with a complex of same metal of less than 10 nm in thickness and not having spontaneous oxide film on said metal particles, and a binder mainly composed of an insulating resin.
摘要:
In a mounting structure including a first electrode and a second electrode electrically connected to each other via a conductive adhesive, the periphery of an adhesion portion between at least one of the electrodes and the conductive adhesive is covered with an electrical insulating layer, whereby the adhesion portion is reinforced from the periphery. The electrical insulating layer may be formed by dissolving a binder resin component of the conductive adhesive in a solvent. This increases the concentration of a conductive filler in the conductive adhesive, so that the conductivity of the adhesion portion is also enhanced.
摘要:
A conductive adhesive comprises main components of a conductive filler and a binder resin, and a content of the conductive filler is in a range from 20 wt % to 70 wt %. It is preferable that at least a part of the conductive filler has protrusions. A dendrite metal filler is especially preferred. When this adhesive is compressed, the resin component is squeezed out, while the conductive filler component remains inside. As a result, the concentration of the conductive filler component is raised inside, and this is useful in connecting the electrodes by scratching the surfaces of the electrodes. No solder is required in forming a conductive adhesive 3 on a substrate electrode 2 of a circuit substrate 1 and also for packaging an electronic element 4. Provided also are a package of an electronic element using the conductive adhesive with improved initial and long-term reliability, and a method of packaging the same.
摘要:
A surface of an external electrode 3 of an electronic part 4 is formed with a coating containing resin ingredient. Thereby, adhesion strength and reliability may be significantly improved in mounting an electronic part onto a circuit board 1 through the medium of a conductive adhesive. Further, it will be able to mount an electronic part to an element to be mounted by utilizing a conductive adhesive forming an external electrode 3 as a connecting element. Further, surface roughness (Ra) of an external electrode 3 of an electronic part is set to 0.1 μm or more and to 10.0 μm or less and preferably to 1.0 μm or more and to 5.0 μm or less. Thereby, adhesion strength with a conductive adhesive may be significantly enhanced in comparison with a conventional electronic part presented.