Abstract:
The present invention provides a process for assembling electronics which allows for rapid heating and fast curing, and avoids subjecting the components to potentially damaging cure conditions. The process includes applying conductive or non-conductive curable thermoplastic or thermosetting resins, having adhesive properties, to a surface of the substrate or electrical component or both. One or more electrical components may be mounted on the substrate using the adhesive properties of the resin. The resin is then subjected to variable frequency microwave irradiation selected to cure the resin without adversely affecting the substrate or electrical components.
Abstract:
Method and apparatus for reducing the occurrence of metal whiskers on surfaces are disclosed herein. In particular, the present disclosure teaches providing at least one source of electromagnetic energy to emit energy to reduce the occurrence of metal whiskers on a surface. Mature (i.e. larger) whiskers are mitigated by lower frequency EM energy, such as millimeter waves and THz RF waves, and the method benefits from the electric field enhancements at the tips of such structures. Immature (i.e. smaller) whiskers are mitigated by higher frequency EM energy, such as infrared, optical, and ultraviolet frequencies. The mitigation is in the form of very localized surface heating, sufficient to overcome driving internal stresses, and in the form of disruption of coherent electrical potential basis present in the material.
Abstract:
An apparatus is disclosed for treating a substance (2a, 2b, 2c) at a substrate (2), the substance having an electrical resistance. The apparatus comprises a first irradiation facility (4) that is arranged for heating the substance by irradiating the substance with infrared, visible and/or UV-radiation that is absorbed by the substance. Said heating by absorption causes a reduction of the electrical resistance of the substance with a first reduction factor greater than 1. The apparatus further comprises a second irradiation facility (8) that is arranged for subsequently resistively heating the irradiated substance by exposure to micro-wave radiation to further reduce the electrical resistance of the substance with a second reduction factor greater than 1.
Abstract:
Disclosed is a method for generating conductive surface patterns on a substrate by coating the substrate with a predetermined pattern of electrically conductive particles or of particles of a material that can be converted by heating into an electrically conducting material, and sintering or melting the coated substrate by means of electromagnetic radiation and by applying an antenna for said electromagnetic radiation in the vicinity of the predetermined pattern. The process is easy to implement, needs only low energy, is very fast and can be used to generate electrically conductive patterns at low cost.
Abstract:
Die Erfindung betrifft ein elektrisches Bauteil mit karbonisierten Leitungen sowie ein Verfahren und eine Vorrichtung zur Herstellung desselben. Das elektrische Bauteil weist elektrische Komponenten (1, 2, 3) auf, die Anschlüsse (6) aufweisen. Ferner befinden sich zwischen den elektrischen Komponenten Leitungsbereiche (7) aus Kunststoff (11) mit Leitungen (8), die karbonisierten Kunststoff und/oder agglomerierte Nanopartikel aufweisen. Diese Leitungen (8) sind mit den Anschlüssen (6) der Komponenten und/oder mit Außenanschlüssen (9) des elektronischen Bauteils verbunden.
Abstract:
In the method and system for manufacturing an electrically conductive metal foil structure, a paste (1) containing fine-grained copper oxide powder with a grain size of the order of 10 mm or less, a binding agent and possible alloying elements and additives. Using a forming device (3), a conductor blank (4) of desired shape is formed from the paste (1) on the surface of a carrier substrate (2). The conductor blank (4) is metallized and sintered in a metallizing and sintering device (5) at an elevated temperature to form a continuous and electrically conductive copper foil (6). The carrier substrate (2) has a substantially non-adhesive surface, which is made of a material capable of withstanding the elevated temperature used for the metallization and/or sintering and non-reacting with the substances contained in the paste so that the copper foil (6) can be detached from the carrier substrate. After the metallization and sintering, the copper foil (6) can be detached and transferred further.
Abstract:
A method and an arrangement are disclosed for producing an electrically conductive pattern on a surface. Electrically conductive solid particles are transferred onto an area of predetermined form on a surface of a substrate. The electrically conductive solid particles are heated to a temperature that is higher than a characteristic melting point of the electrically conductive solid particles, thus creating a melt. The melt is pressed against the substrate in a nip, wherein a surface temperature of a portion of the nip that comes against the melt is lower than said characteristic melting point.
Abstract:
본 발명에 의하면 고주파 전자기장을 이용한 전자부품 접속방법 및 장치가 제공된다. 본 발명의 일 실시예에 따른 상기 방법은 접속시키고자 하는 전자부품에 구비된 접착제에 고주파를 인가하여 자체적으로 발열시킴으로 전기적 및 기계적으로 접합시키는 단계를 포함하는 것을 특징으로 하며, 본 발명에 따른 전자부품 접속방법은 고주파의 전자기파를 이용하여 인터포저 및/또는 폴리머 접착제에 함유된 특정 성분을 발열시킨다. 외부의 열원을 사용하지 않으므로, 저온에서 부품간 접속이 가능하고, 경제적이다. 또한, 접합구조 전체를 진동시키는 초음파 접속방식에 비하여, 화학적 쌍극자를 가지는 특정 성분 등을 고주파의 전자기장으로 발열시키는 본 발명은 외부 진동에 따른 공정 제약이 없다. 아울러, 고정된 진동자를 사용하는 초음파 방식과 달리, 사용자가 공정 조건에 따라 주파수 변조가 용이하므로, 물질 종류에 따라 다양한 조건으로 부품간 접속을 진행할 수 있다.