Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Korea Institute of Science and Technology

Jae-Dong Byun

Young-sun Kim

Seung-Hwan Lee

Sung-Tae Kim

Yong-Chul Park

Yoon H Kim

Gyeong-Jae Heo

Hyun-Deok Lee

Mi-Ran Song

Min-Ju Kim

Na-Leum Yoo

Jin-Hyoung Seo

Sun-Youn Ryou

Dal-won Lee

Song-won Ko

In-Kyu Yoo

A positive active material, a method of preparing the same, and a lithium secondary battery including the positive active material.

Positive active material, method of preparing the same, and lithium battery including the positive active material

Methods of forming a capacitor of a semiconductor device can include forming a lower electrode of a capacitor on a semiconductor substrate and forming a dielectric material layer of Ba(TiSn)O(BTS) or Ba(TiZr)O(BTZ) on the lower electrode. An amorphous layer can be formed on the dielectric material layer. An upper electrode of the capacitor can be formed on the amorphous layer.

Methods of forming capacitors with high dielectric layers and capacitors so formed

A dielectric ceramic composition having an empirical formula represented by (Sr.sub.l-2x Bi.sub.x Ti.sub.l-y W.sub.y)O.sub.3 wherein x is in a range of 0.0005 to 0.003 and y is in a range of 0.0015 to 0.009 for boundary layer condensers and a method for preparing the same which are comprising the steps of: mixing Bi.sub.2 O.sub.3 -WO.sub.3 frit powder with main component having an empirical formula represented by Sr.sub.l-2x Ti.sub.l-y O.sub.3 wherein x is in a range of 0.0005 to 0.003 and y is in a range of 0.0015 to 0.009, in a wet manner, the Bi.sub.2 O.sub.3 frit serving as a reducing agent; drying the resulting mixture; sintering the dried mixture at a temperature of 1,400 to 1,470.degree. C under a reducing atmosphere; and applying secondary thermal treatment to the sintered body at 1,250.degree. C are disclosed.

Dielectric ceramic composition for boundary layer condensers and a

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Jae-Dong Byun