摘要:
A circuit-connecting material for electrical connection of two circuit members with circuit electrodes formed thereon, with the circuit electrodes opposing, wherein the circuit-connecting material comprises an adhesive composition and conductive particles, and the conductive particles are conductive particles having a plurality of protrusions on the surface and consisting of a core made of an organic high molecular compound covered with a metal layer composed of nickel or a nickel alloy, the mean particle size of the core being 1-4 µm and the thickness of the metal layer being 65-125 nm.
摘要:
Described is a method of forming a solder deposit on a substrate comprising the following steps i) provide a substrate (102) including a permanent resin layer (103) on top of at least one contact area (101) and a temporary resin layer (104) on top of the permanent resin layer (103), ii) contact the entire substrate area including the at least one contact area (101) with a solution suitable to provide a conductive layer (106) on the substrate surface, iii) electroplate a solder deposit layer (107) containing tin or a tin alloy onto the conductive layer (106) and iv) etch away an amount of the solder deposit layer (107) containing tin or a tin alloy sufficient to remove the solder deposit layer (107) from the temporary resin layer (104) area leaving a solder material layer (107) on the at least one contact area (101).
摘要:
Various semiconductor chip reinforcement structures and methods of making the same are disclosed. In one aspect, a method of manufacturing is provided that includes providing a semiconductor chip (15) that has a side (40) and forming a polymer layer (60) on the side (40). The polymer layer (60) has a central portion (65) and a first frame portion (70) spatially separated from the central portion (65) to define a first channel (80).
摘要:
The invention relates to a sintered material comprising metallic structure particles provided with an organic coating. It is envisaged in accordance with the invention that metallic and/or ceramic auxiliary particles (7) with a non-organic coating, which do not outgas in the course of the sintering process, are provided. The invention further relates to a sintered bond (1) and to a process for producing a sintered bond (1).
摘要:
Chip packages having power management integrated circuits are described. Power management integrated circuits can be combined with on-chip passive devices, and can provide voltage regulation, voltage conversion, dynamic voltage scaling, and battery management or charging. The on-chip passive devices can include inductors, capacitors, or resistors. Power management using a built-in voltage regulator or converter can provide for immediate adjustment of the voltage range to that which is needed. This improvement allows for easier control of electrical devices of different working voltages and decreases response time of electrical devices. Related fabrication techniques are described.
摘要:
A semiconductor device includes a die pad having a surface on which a first solder bonding layer is formed, and made of metal; and a semiconductor element fixed on the first solder bonding layer on the die pad by a solder material made mostly of bismuth. The first solder bonding layer is made of a softer material than the solder material, a recess is formed in a part of the first solder bonding layer by pressing the solder material against the first solder bonding layer, and the solder material partially fills the recess.
摘要:
There are provided an electronic element having a connection portion at which an electrode having a surface composed of at least Al or an alloy and a metal nanoparticle sintered body is connected to each other, an electronic element device using the same, and a manufacturing method thereof. In an electronic element including an electronic element base and electrodes each of which has a first electrode having a surface composed of at least Al or an Al alloy and a second electrode composed of a metal nanoparticle sintered body and bonded to the first electrode, a bonding interface between the first electrode and the second electrode has a multilayer structure including, from the side of the first electrode to the side of the second electrode, (a) a first layer primarily composed of Al, (b) a second layer primarily composed of an Al oxide, (c) a third layer primarily composed of an alloy of Al and a constituent element of metal nanoparticles, and (d) a fourth layer primarily composed of the constituent element of the metal nanoparticles.
摘要:
A manufacturing method for an electronic substrate (121), includes: preparing a substrate (121) and a mask (22) having a predetermined region; forming a wiring pattern (20,21) on the substrate (121); forming an aperture portion (22a) in the predetermined region of the mask (22); affixing the mask (22) on the substrate (121); and removing at least a part of the wiring pattern (20,21) through the aperture portion (22a) of the mask (22) thereby forming the electronic element on the substrate (121).