Multilayered electronic part with minimum silver diffusion

Details Multilayered electronic part with minimum silver diffusion Multilayered electronic part with minimum silver diffusion

1998-05-12

2000-04-04

Speer, Timothy M.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428210, 428901, 174255, 257179, B32B 300

Patent

active

060458933

ABSTRACT:
A multilayered electronic part with minimized silver diffusion into ceramic body. The multilayered electronic part is produced by sintering a green ceramic body of a plurality of ceramic layers comprising a main phase and a grain boundary phase, at least one of the ceramic layers being printed thereon Ag-containing internal electrode patterns which may serve as markers for indicating several information such as a production number, a name of manufacturer, a kind of circuit, etc. By the production method of the invention, the diffusion of Ag in the internal electrode patterns into the ceramic body is effectively prevented to avoid the deterioration of the electrical characteristics as well as to avoid the blackening of the ceramic to ensure a high lightness of the ceramic body which enhances the reliability of the visual identification and distinguishability of the markers.

REFERENCES:
patent: 4490429 (1984-12-01), Tosaki et al.
patent: 4746557 (1988-05-01), Sakamoto et al.
patent: 5164882 (1992-11-01), Kanai et al.
patent: 5292574 (1994-03-01), Kata et al.
patent: 5621190 (1997-04-01), Yamasaki et al.

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