US 7,466,538 B2
Multilayer ceramic electronic device
Norihiko Sakamoto, Matsue (Japan); and Tomoro Abe, Takefu (Japan)
Assigned to Murata Manufacturing Co., Ltd., Nagaokakyo-Shi (Japan)
Filed on Oct. 31, 2007, as Appl. No. 11/931,667.
Application 11/931667 is a continuation of application No. PCT/JP2006/310303, filed on May 24, 2006.
Claims priority of application No. 2005-153943 (JP), filed on May 26, 2005.
Prior Publication US 2008/0212257 A1, Sep. 04, 2008
Int. Cl. H01G 4/06 (2006.01)
U.S. Cl. 361—321.1  [361/321.2; 361/306.1; 361/306.2; 361/311; 361/313] 15 Claims
OG exemplary drawing
 
1. A multilayer ceramic electronic device comprising a laminate of a plurality of ceramic layers laminated to each other and a plurality of internal electrodes each of which is disposed between adjacent ceramic layers wherein, when continuity of each of the internal electrodes is defined by (X−Y)/X in which X indicates the length of a cross section of an internal electrode in one direction and Y indicates the sum of gaps formed by pores in the cross section of the internal electrode, the average value of continuities of the internal electrodes located in two regions (f) is lower than the average value of continuities of the other internal electrodes by 5% to 20% inclusive, the two regions (f) being the regions within 10% of the topmost internal electrode and the bottommost internal electrode of the distance therebetween.