1. MLCC stands for Multi Layer Ceramic Capacitor, which are widely used in electronic devices with approximately 250 components per mobile phone. 2. MLCCs are classified based on their dielectric properties and temperature range and can have capacitance values currently in the pF to 1μF range but nearing 50μF in the future. 3. Miniaturization of MLCCs is an ongoing technical trend, with common size codes decreasing from 1005 to 0603 and nearing 0402 to increase capacitance in smaller volumes.

1. MLCC
♦ MLCC (Multi Layer Ceramic Capacitor) :
♦ classification
- C: NPO, COG : ε ~ ≤30:
- B: X7R: ε ~ 3,000 : -55 ~125oC: ±15%
- F: Y5V: ε ~ 12,000: -25 ~85oC: -20 ~ + 80%
♦ electrode: from Ag-Pd to Ni (sintering in reducing atmosphere)
♦ about 250 C and 15 L components / mobile phone
♦capacitance range : current: pF ~ 1µF, near future: pF ~ 50µF
♦ size: current: 1005, near future: 0603 - 0402
Advanced Electronic Ceramics I (2004)
MLCC의 분류
용량 전압(V)
1pF 6
l 10
10pF 16
l 25
100pF 50
l 100
Dimension
EIA Code 1nF 200
Code l 250
L W T (Max) BW
10nF 300
0201 0.60 0.30 0.30 0.15
0603 l 500
0402 1.00 0.50 0.50 0.20
1005 100nF 630
l 1,000
1608
0603 1.60 0.80 0.80 0.30
1uF 1,500
0805 2.00 1.25 1.25 0.50
2012 l 2,000
1206 3.20 1.60 1.60 0.50
3216 10uF 2,500
l 3,150
1210 3.20 2.50 2.50 0.60
3225
100uF 4,000
1812 4.50 3.20 2.50 0.80
4532 5,000
2220 5.70 5.00 2.50 1.00
5750 10,000
Advanced Electronic Ceramics I (2004)

2. MLCC의 분류
Class I Class II
온도 범위 -5 5 ~ +1 2 5 C
온도 계수 ( ppm/C) ;유효숫자*승수 공차 ( ppm/C) 온도 범위 용량 변화율
유효숫자 기호 승수 기호 값 기호 저온( C) 기호 고온( C) 기호 값( %) 기호
0 .0 C -1 0 +-3 0 G +1 0 Z +4 5 2 +-1 .0 A
1 .0 M -1 0 1 +-6 0 H -3 0 Y +6 5 4 +-1 .5 B
1 .5 P -1 0 0 2 +-1 2 0 J -5 5 X +8 5 5 +-2 .2 C
2 .2 R -1 0 0 0 3 +-2 5 0 K +1 0 5 6 +-3 .3 D
3 .3 S -1 0 0 0 0 4 +-5 0 0 L +1 2 5 7 +-4 .7 E
4 .7 T +1 5 +-1 0 0 0 M +1 5 0 8 +-7 .5 F
7 .5 U +1 0 6 +-2 5 0 0 N +-1 0 .0 P
+1 0 0 7 +-1 5 .0 R
+1 0 0 0 8 +-2 2 .0 S
+1 0 0 0 0 9 +2 2 , -3 3 T
+2 2 , -5 6 U
COG (NPO) +2 2 , -8 2 V
F
B
Class I Class II
- Small loss, high IR, high stability - high dielectric constant
- Linear and moderate TC between +100and -1500ppm/oC - temperature dependence of the capacitance is large
Advanced Electronic Ceramics I (2004)
MLCC: X7R
1. The most popular intermediate
dielectric-constant materials.
2. Increasingly important as the
improvement of the integration
technology enables the high capacitance
with lower temperature coefficient
(possibility to replace the Ta capacitor)
ε ~ 3,000 : -55 ~125oC: ±15%
From http://www.sem.samsung.co.kr/product/ca/mlcc/information.pdf
Advanced Electronic Ceramics I (2004)

3. MLCC: Y5V
High dielectric constant with high temperature coefficient
SrTiO3
shifter
CaCO3
depressor
From http://www.sem.samsung.co.kr/product/ca/mlcc/information.pdf
Advanced Electronic Ceramics I (2004)
MLCC: Technical Trends: 1. High Capacitance
http://www.sem.samsung.co.kr
Advanced Electronic Ceramics I (2004)

4. MLCC: Technical Trends: 2. Miniaturization
http://www.sem.samsung.co.kr
Advanced Electronic Ceramics I (2004)
MLCC: Technical Trends: 3. Base-Metal Technology
http://www.sem.samsung.co.kr
Advanced Electronic Ceramics I (2004)

5. Multi Layer Ceramic Capacitor
C = nε0εrA/t
C: Capacitance
n: number of layer
ε0 : permittivity in vacuum
εr : dielectric constant
A: area
t: thickness
For high C in small volume
n↑, t ↓ (1005→ 0603 → 0402)
Ni electrode for cost reduction
Advanced Electronic Ceramics I (2004)
전자신문
Advanced Electronic Ceramics I (2004)

6. 삼성전기(대표 강호문)는 지난달부터 0603 크기의
적층세라믹콘덴서(MLCC)를 월 2000만개씩 양산, 기존 1608
크기의 MLCC보다 공급단가가 최소 100배 이상 비싼 고수익
부품사업 확대에 본격 나섰다. 특히 1005와 0603형 크기의 극소형
MLCC 생산비중을 현재 15%선에서 연말까지 30%대로 높일
계획이다.
업계 관계자들은 “범용 부품의 경우 가격경쟁이 치열해
수익성이 떨어지는 반면, 고부가 제품들은 매출 및 수익성
창출효과가 크다”면서 “수동부품업체들이 범용 제품 생산기지를
중국 및 동남아로 이전하는 대신 국내 공장은 고부가 제품 위주로
빠르게 생산구조를 재편하는 추세”라고 강조했다.
전자신문 2002년 9월 5일자
Advanced Electronic Ceramics I (2004)
Multi Layer Ceramic Capacitor
Powder preparation technique
1. Solid State Reaction (past)
2. Hydrothermal (current)
3. Coprecipitation (current)
Starting particle size : < 0.5 µm
- particle size↓ → surface area ↑ → additive content↑
→ difficult to increase solid loading
→ advanced dispersion technique is required
Advanced Electronic Ceramics I (2004)