摘要:
A light and heat resistant circuit board apparatus LHRPCB, comprising: at least one thermally conductive material (TCM) layer (20) adapted to serve as a mechanical and thermal substrate for the LHRPCB; at least one layer (30) of electrically isolating material (EIM) configurable on respective TCM layers, the at least one EIM layer being resistant to UV radiation; at least one electrically conducting (ECL) layer (35) configurable above the at least one TCM layer and adapted to be patterned and to selectively conduct electrical current; at least one heat and UV radiation resistant bonding (HUVRBL) layer (25) appliable between respective ECL, TCM, and EIM layers; and at least one electronic component (45,51) mountable upon the at least one ECL layer, wherein the LHRPCB is adapted to be exposed to light and heat for an extended period.
摘要:
In an electronic component having a wiring and/or an electrode prepared through firing of a paste or in an electronic component having a wiring in contact with a glass or glass ceramic member, provided is an electronic component using a Cu-based wiring material which less suffers from increase in electric resistance due to oxidation, which less causes bubbles in the glass or glass ceramic, and has satisfactory migration resistance. The Cu-Al alloy powder includes a Cu-Al alloy powder including Cu and, preferably, 50 percent by weight or less of Al; and an aluminum oxide film having a thickness of 80 nm or less and being present on the surface of the Cu-Al alloy powder. The powder, when compounded with a glass or glass ceramic material to give a paste, can be used to form wiring (interconnections), electrodes, and/or contact members.
摘要:
A ceramic-copper foil bonding method includes wet-oxidizing a copper foil (1,3,4) such that a surface of the copper foil (1,3,4) is oxidized to a copper oxide layer (11,31,41), contacting the copper oxide layer (11,31,41) with a surface of a ceramic substrate (2,5), and bonding the copper oxide layer (11, 31, 41) of the copper foil (1,3,4) to the surface of the ceramic substrate (2,5) by heat treatment. Preferably, a protective layer is provided on an opposite surface of the copper foil (1,3,4) so that the opposite surface is not oxidized during wet-oxidizing the copper foil (1,3,4).