Abstract:
A method may include providing a chip carrier having a chip supporting region to support a chip, and a chip contacting region having at least one contact pad, the chip carrier being thinner in the chip contacting region such that a first thickness of the chip carrier at the at least one contact pad is smaller than a second thickness of the chip carrier in the chip supporting region. A disposing of the chip, having at least one contact protrusion, over the chip carrier, such that the at least one contact protrusion is arranged over the at least one contact pad may be included. In addition, a pressing of the chip against the chip carrier such that the at least one contact protrusion extends at least partially into the chip contacting region and is electrically contacted to the at least one contact pad may be included.
Abstract:
Provided is transferring members having a plate-like shape used in baking a metal particle paste of an assembled body formed by arranging an electronic part on a substrate with the metal particle paste interposed therebetween by applying pressure to the assembled body and by heating the assembled body, the transferring members being configured to sandwich the assembled body in baking the metal particle paste, wherein the transferring members are made of a material having thermal conductivity which falls within a range of from 1 to 200 W/(m k) and Vickers hardness which falls within a range of from 180 to 2300 kgf/mm2.With such a configuration, it is possible to provide a transferring member for being used in a method of manufacturing a bonded body which can suppress the lowering of bonding property between a substrate and an electronic part and which can prevent the remarkable lowering of productivity of a bonded body.
Abstract:
A method includes preparing a bonding surface of a heat dissipating member, applying flux to the bonding surface of the heat dissipating member, and removing excess flux from the bonding surface so that minimal flux is provided. The method also includes preparing a die surface of an electronic device package, applying flux to the die surface, and removing excess flux from the die surface so that minimal flux is provided. The method further includes positioning a preform solder component on the die surface, positioning the heat dissipating member over the die surface and the preform solder component such that the flux layer of the bonding surface is in contact with the preform solder component, and reflowing the solder component using a reflow oven. A heat spreader is also described for use in the process.
Abstract:
An electronic device includes a first electronic part that includes a first terminal, a second electronic part disposed to be opposed to the first electronic part, the second electronic part that includes a second terminal including a first end part in contact with the first terminal and a second end part located on an outside of the first terminal, and an adhesive disposed between the first electronic part and the second electronic part, the adhesive maintaining the contact between the first terminal and the first end part by bonding the first electronic part and the second electronic part to each other.
Abstract:
The present invention relates to a conductive paste for bonding comprising 100 parts by weight of the metal powder, 5 to 20 parts by weight of a solvent, and 0.05 to 3 parts by weight of a polymer, wherein the polymer comprises a first polymer and a second polymer, wherein the molecular weight (Mw) of the first polymer is 5,000 to 95,000, and the molecular weight (Mw) of the second polymer is 100,000 to 300,000.
Abstract:
According to various embodiments, a chip carrier may include: a chip supporting region configured to support a chip; a chip contacting region including at least one contact pad for electrically contacting the chip; wherein the chip carrier is thinned in the chip contacting region such that a first thickness of the chip carrier at the at least one contact pad is smaller than a second thickness of the chip carrier in the chip supporting region.
Abstract:
The present invention has been achieved reflecting such situation, and its object is to provide a manufacturing method of a semiconductor device capable of continuously performing the mounting process which applies a so-called DBG process and a flip chip bonding method, and can contribute to simplify the manufacturing process and to improve the reliability with no void in the product. The manufacturing method of a semiconductor device according to the present invention comprises: laminating a surface protective sheet to a circuit surface side of a wafer formed with grooves which divide each circuit wherein an adhesive film is adhered on the circuit surface of the wafer; reducing the thickness of the wafer and finally dividing the wafer into individual chips by grinding a back face of the wafer; picking up individual chips together with the adhesive film; die-bonding said individual chip to predetermined position of a chip mounting substrate via said adhesive film; fixing the chip to the chip mounting substrate by heating the die-bonded chip having the adhesive film; and applying a static pressure larger than an ambient pressure by 0.05 MPa or more to a stacked body including the adhesive film one or more times, at any point between adhering the wafer to the adhesive film and fixing the chip to the chip mounting substrate.
Abstract:
An electronic device and a method for producing an electronic device are disclosed. In an embodiment the electronic device includes a first component and a second component and a sinter layer connecting the first component to the second component, the sinter layer comprising a first metal, wherein at least one of the components comprises at least one contact layer which is arranged in direct contact with the sinter layer, which comprises a second metal different from the first metal and which is free of gold.
Abstract:
A method of forming a chip assembly may include forming a plurality of cavities in a carrier; The method may further include arranging a die attach liquid in each of the cavities; arranging a plurality of chips on the die attach liquid, each chip comprising a rear side metallization and a rear side interconnect material disposed over the rear side metallization, wherein the rear side interconnect material faces the carrier; evaporating the die attach liquid; and after the evaporating the die attach liquid, fixing the plurality of chips to the carrier.
Abstract:
The present invention is directed to provide a method of manufacturing an optical module in which optical devices are optically aligned with high precision regardless of elastic return of bonding bumps. The invention provides a method of manufacturing an optical module including the steps of forming bumps for bonding made of metal on a substrate, and bonding a second optical device on the bonding bumps by applying a load so that the bumps for bonding are deformed only by a predetermined amount from a position where a first optical device and the second optical device are optically coupled most efficiently and, after that, releasing the load.