multi-layer structure of the external electrode having a low-temperature co-fired ceramic (LTCC) package

摘要

The present invention is forming a surface electrode on a ceramic substrate using a low temperature co-fired ceramic (LTCC) technology relates to a technique for. ; LTCC package according to the present invention, a ceramic substrate containing a glass; And the low-temperature co-fired, and using the method comprises a first and second metal electrodes formed by a plurality of metal layers on the surface of the substrate, the first electrode is a metal paste having a predetermined firing temperature on the ceramic substrate, is formed by the second metal electrode is characterized to be formed by using a paste having a lower sintering temperature than said predetermined firing temperature on the first metallic electrode. Metal electrodes may also be formed of the multilayer structure by using a paste having a powder of a paste or of different sizes each layer has a different firing temperature. ; by reducing the amount of glass in the LTCC package eluted by low temperature co-fired external electrode surface according to the present invention can improve the plating properties and the ability to form a closed structure of the LTCC package external electrodes, LTCC package using a part of the downsizing, lower cost, lighter weight, function is advantageous to improve the integration capacity.