US 7,495,378 B2
Dielectric device
Tsutomu Nanataki, Toyoake (Japan); Hirofumi Yamaguchi, Komaki (Japan); and Nobuyuki Kobayashi, Nagoya (Japan)
Assigned to NGK Insulators, Ltd., Nagoya (Japan)
Filed on Jul. 13, 2005, as Appl. No. 11/180,966.
Claims priority of provisional application 60/646745, filed on Jan. 25, 2005.
Claims priority of provisional application 60/588093, filed on Jul. 15, 2004.
Prior Publication US 2006/0250067 A1, Nov. 09, 2006
Int. Cl. H01J 1/02 (2006.01)
U.S. Cl. 313—311  [313/309; 313/310] 11 Claims
OG exemplary drawing
 
1. A dielectric device having a dielectric layer, the dielectric layer comprising:
a first layer which has a plurality of first dielectric particles; and
a second layer which has a plurality of second dielectric particles having a different average particle size from that of the first dielectric particles, the second layer and the first layer stacked in the thickness direction of the dielectric layer, wherein the dielectric layer contains a metal which is mixed therewith.