SEMCO Polymer Tantalum - Maritexdownload.maritex.com.pl/pdfs/pa/tantal-poly.pdfTitle ISSUE TREND -...

- 1 - All Rights Reserved, Copyright Samsung Electro-Mechanics Co., Ltd.

SEMCO Polymer Tantalum

1. Overview

2. Feature of Tantalum

3. Strength of Polymer Tantalum

4. Core Technology

5. Roadmap


[ Figure T1. Schematic structure of Tantalum Capacitor ]

Cathode: Pellet Anode: Ta Wire

Lead Frame

Mold Epoxy Lead Frame

C ε d S

∝

[Anode]

Ta wire / powder

[Dielectrics]

Ta2O5

[Cathode]

Polymer or MnO2

0

0

0

0

Polymer

Or MnO2

Ta Powder

Ta2O5

Ta Wire

Polymer or MnO2

Carbon Silver

Ta

Powder

Ta2O5

Inner: Porous

Structure(Conventional Type)

Constitution of Ta Capacitor

- Ta2O5 dielectrics, Ta anode and Polymer(/MnO2) cathode

1. Overview

Porous structure to

increase surface area


Pellet

x100K x1K x50

Granule(10~200) Primary particle(sub )

[ Figure T2. Schematic structure of Tantalum Capacitor ]

Structure(Internal)

Ta Capacitor should increase surface area for high capacitance

due to low permittivity compared to MLCC

1. Overview

Anode : Ta metal

Dielectrics : Ta2O5

Cathode : Polymer or MnO2

Anode : Ta wire

Tantalum

Polymer/MnO2

Carbon

Silver

Ta2O5


Porous structure

Anode : Ta metal

Dielectrics: Ta2O5

Cathode: MnO2

Cathode: Polymer

Fracture surface after sintering of Ta metal Fracture surface after dielectrics formation

Fracture surface after making MnO2

Fracture surface after making polymer

Structure(making Internal cathode) 1. Overview


[ Figure T3. Schematic diagram using electrode of tantalum capacitor]

Product Type

Dividing into MnO2 type and Polymer type

according to the material used for its cathode

1. Overview

MnO2

(+) (-)

Ta2O5 (Dielectric)

Carbon

Ag

Ta (Anode)

(+) (-)

Ta2O5 (Dielectric)

Carbon

Ag

Ta (Anode)

Polymer


Process flow 1. Overview

Powder

mixing 1

Pressing 2

Sintering 3

Pellet

welding 4

Formation

(Ta2O5) 5

MnO2 or

Polymer 6

Carbon

coating 7

8

Middle

inspection 9

Leadframe

welding

Molding

Marking 12

11

10

Silver

coating

13 Aging

14 Testing

15 Taping

16 Final

inspection

17 Outgoing

inspection

18 Packing


Characteristics : DC bias VS Cap 2. Feature of Tantalum

[Figure T4. Capacitance change of tantalum capacitor by DC-bias]

0 1 2 3 4 5 6-80

-70

-60

-50

-40

-30

-20

-10

0

10

MLCC 1608, 1.0Tmax

, 10V22F

Polymer Ta 1608, 1.0Tmax

, 6.3V22F

Ca

pacit

an

ce c

han

ge / %

DC Voltage / V

Polymer 1608 1.0t 6.3V22uF

Measurement conditions

Frequency range : 120Hz

Voltage : 1.0Vrms @ 25oC

DC bias : 0 ~ 6V

Tantalum Cap has no significant change of Capacitance unlikely MLCC.


Characteristics : Temp VS Cap 2. Feature of Tantalum

[Figure T5. Capacitance change of tantalum capacitor by Temperature]


-55 25 105-50

-40

-30

-20

-10

0

10

20

30

40

50 MLCC 1608, 1.0T

max, 10V-22F


, 6.3V22F

Cap

acit

an

ce c

han

ge / %

Temperature / C



Voltage : 1.0Vrms @25oC

DC bias : 0V

Temperature : -55oC ~ +105oC

Tantalum Cap has no capacitance drop at high temperature unlikely MLCC.


Characteristics : Time VS Cap 2. Feature of Tantalum

[Figure T6. Capacitance change of tantalum capacitor by Time]




Voltage : 1.0Vrms @25oC

DC bias : 0V

Time : ~84hr

0.1 1 10 100-10

-8

-6

-4

-2

0

2

4

6

8

10 MLCC 1608, 1.0T

max, 10V-22F


, 6.3V22F

Cap

acit

an

ce c

han

ge / %

Time / Hr

Tantalum Cap has no capacitance drop by time unlikely MLCC.


Characteristics : Acoustic noise 2. Feature of Tantalum

[Figure T7. Acoustic noise by Frequency]

Tantalum Cap has no piezoelectric property. So there is no acoustic noise.



High conductivity 3. Strength of Polymer Tantalum

[Figure T8. Conductivity by materials ]

102

101

100

10-1

Conductive

Polymer

Electrolytic

Capacitor

MnO2

Conductivity

10 to 100 times up

100 times up

Conductivity

/ S

/cm

Conductivity of Polymer is higher than that of MnO2.


Low ESR 3. Strength of Polymer Tantalum

[Figure T9. ESR Curve versus Frequency]

Manganese

10V47uF

Polymer

6.3V47uF

Frequency / Hz

ES

R / m

Ω

728mΩ

87mΩ


Frequency range : 100 ~ 2MHz

@100kHz, 25oC

Rip

ple

curr

ent

/ A

rms

[Figure T10. Allowable ripple current comparison]

Polymer MnO2

ESR value relates to heat generation,

so allowable ripple current is different.

I r = (P max / ESR)1/2

ESR of Polymer is lower than that of MnO2. (Polymer has high allowable ripple current.)


[ Figure T13. Simulation of Output Voltage in DC-DC Converter(47) ]

Excellent noise removal

Noise removal of Polymer is better than that of MnO2



Excellent noise removal

Noise removal of Polymer is better than that of MnO2


[ Figure T14. Simulation of Ripple Voltage in Power Line(47) ]


No ignition 3. Strength of Polymer Tantalum

Ta Ta2O5 MnO2

(+) (-)

1. Crack initiates

current & heat.

Q = I2×R×t

2. MnO2 conversion

and O2 generation.

2MnO2 → Mn2O3 + ½ O2 O2

3. Rapid combine

: Ta and O2

→ IGNITION !

Ta : MnO2 Type

4Ta + 5O2 2Ta2O5 + Q kcal – Oxygen supply from MnO2 decomposition : 2MnO2 Mn2O3 + ½ O2

Ta : Polymer Type

4Ta + 5O2 2Ta2O5 + Q kcal – No Oxygen supply

[Figure T. example of burnt

failure for MnO2 Ta cap.]

[Figure T12. Burnt mechanism of MnO2 Ta cap.]

Polymer has no oxygen source. So there is no burnt failure. (MnO2 can be burnt because it has oxygen source.)


Low voltage derating 3. Strength of Polymer Tantalum

SSST(Surge Step Stress Test)

MnO2

(27Batches)

Polymer

VR>10VDC

Polymer

VR<=10VDC

100PPM FR / % VRated 68% 126% 197%

@50% Vrated / FR(PPM) 9 0 0

@80% Vrated / FR(PPM) 458 4 1

@90% Vrated / FR(PPM) 1,700 12 2

@100% Vrated / FR(PPM) 6,310 35 8

Ref. CARTS Europe 2004: 18th Annual Passive Components Conference, October 18-21, 2004

Looking across the first row of value, the 100-PPM failure rates are projected to be at 68% of rated voltage(VR)

for the Ta-MnO2, at 126% of for the higher voltage Ta-polymer devices, 197% of VR for the lower voltage

Ta-polymer devices.

The failure rate projection is 9PPM for the Ta-MnO2 product at 50% VR, and this is nearly equal to the higher voltage

Ta-polymer’s projected failure rate of 4 PPM at 80% VR, and 2 PPM at 90% VR for the lower voltage Ta-polymers.

General voltage derating recommendation : Polymer 0.8×Vrated / MnO2 0.5×Vrated

Reliability of polymer product applying 0.8Vrated is similar to that of MnO2 product

using 0.5Vrated.


3. Strength of Polymer Tantalum Low stress

Ref. CARTS Europe 2004: 18th Annual Passive Components Conference, October 18-21, 2004

Polymer - a soft, elastic material.

Process involves conversion at room Temperature.

MnO2 - a hard, crystalline material.

process involves dip at +25 and conversion at

+250 to +270.

MnO2 Ta Polymer Ta

Stress of Polymer induced by respectively different CTE btw materials is insignificant

comparing to Manganese.


4. Core Technology Market’s Needs & Samsung’s Reply

Technical Trend Needs Solutions

• High performance

• High mobility

• Ultra slim

& portable

• High capacitance

• High efficiency

• LOW ESR

• No Acoustic Noise

• Down sizing &

Low profile

• High CV Powder

• Volume efficiency

• Conductive polymer

Ultra low ESR, Small size

Polymer tantalum capacitor


4. Core Technology Q

(CV

) p

er

vo

lum

e

Year 2010 2012 2013

25.2

123.4

231.3

3528 6.3V47F 1.2Tmax

Powder : 70kCV

100

200

300 2012 6.3V47F 1.0Tmax

Powder : 150kCV

1608 6.3V47F 1.0Tmax

Powder : 200kCV 400

Q per volume(based on 47) : 25.2 (‘10) 123.4(’12) 231.3(’13)

Q per volume = C(capacitance)ⅹV(Voltage) / chip volume

Volume efficiency

(Technological achievement)


4. Core Technology Low ESR

(Technological achievement)

ESR level : 35m (Dec.’11) 9m (2Q.’13) 6m(4Q.’13)

2010 2011 2012 2013

ES

R

35m

75m

6.3V150F

25m

15m

9m 6m 4m

6.3V150F

2.5V330F

2.5V330F 2.5V470F

2.5V680F

6.3V150F

High-conductive polymer synthesis

LF mat’l change

Seed polymer quantity control

Fine carbon application

Polymer thickness control

Seed polymer quality up

Oligomer removal tech.

Polymer orientation up

Polymer surface modification

hybrid carbon application

Multi-pellet structure

Multi-lead structure Year

3528 size


Inner

structure

Representative

Model

(1608-1.0Tmax) 6.3V 10F, 500m 6.3V 47F, 150m

Volume

Efficiency * 22%

36%

(1.6 times)

50%

(2.3 times)

6.3V 22F, 300m

6.3V 33F, 200m

PC* series

(Normal)

PCF series

(Face-down)

PFL series

(Frameless)

4. Core Technology Downsizing & High Cap

(Volume efficiency)

For high capacitance,

developed new inner structure with high volume efficiency

※ Volume efficiency = pellet volume

chip volume × 100%


500nm 500nm

※ CV : capacitance voltage

100kCV 200kCV 300kCV

Conventional ’10 ’14

Powder

’12

High CV powder = high specific area powder

ACV;d

AC ro

ro

o : permittivity of vacuum

r : relative permittivity of Ta2O5

A : specific surface area, d : Ta2O5 layer thickness

: anodization constant, VF : formation voltage

Year ’10 ’12 ’13 ’14

Powder 150kCV 200kCV 250kCV 300kCV

BET / m2/g 3.3 4.4 5.5 6.6

Particle size / nm ~ 90 ~ 68 ~55 ~45

150kCV

500nm 500nm

4. Core Technology Downsizing & High Cap

(High CV powder)

High capacitance : High CV powder application


1. R (Ta wire) + R(Ta metal )

2. R (polymer)

3. Ri (polymer/carbon)

4. R (carbon)

5. Ri (carbon/silver)

6. R (silver)

Ta (anode)

Wire + Porous Ta Ta2O5

(dielectrics)

Cathode, polymer

Carbon

Silver

ESR Resistance of component materials

Interfacial resistance

Focusing on

1) outer polymer layer and 2) interface between polymer and carbon

4. Core Technology Low ESR

(Conductive cathode)

Factors determining ESR

[ Figure T11 Schematic of Tantalum capacitor device]


5. Roadmap Polymer Tantalum

(3216 and 3528 size)

* PFL (Frameless type) 1. Figure in the box : ESR(mΩ)

Size Rated V 6.8F 15F 33F 47F 100F 150F 220F 330F 470F

3216-1.8T

2.5 35

6.3 35 35/25

3528-2.0T

2.5 35/25 15 15 9 6*

6.3 70/40/35 70/40/35 70/35/25 35/25 25/15

10 70/35 70/35

16 70

25 90 90

’13. 2Q Developed MP ’13. 3Q ’13. 4Q

World 1st product


5. Roadmap Polymer Tantalum

(Small size and low profile)

1. Figure in the box : ESR(mΩ)

Size Rated V 2.2F 4.7F 10F 22F 33F 47F 100F 150F 220F

1608

1.0T

6.3 500 500 300 200 200*

10 500 500

0.8T 6.3 300 200* 200*

2012

1.2T 10 1000

1.0T 6.3 200/150 150 *

0.8T 6.3 200 200

3216-1.0T 6.3 100* 100/70*

3528

1.5T 6.3 70/35 200 70/35

1.2T 6.3 70/35 70/35

1.0T 6.3 70/35*

* PFL (Frameless type)

World 1st product

’13. 2Q Developed MP ’13. 3Q ’13. 4Q


Appendix

Series Description Identifier

PCS

Polymer type

Normal structure

General/Small/High Cap

Lead-free/Conform to RoHS

TCPCSxxxxxxxxxxxxx

2012 / 3216 / 3528 size

PCL

Polymer type

Normal structure

Low Profile


TCPCLxxxxxxxxxxxxx

3216 / 3528 size

PCM

Polymer type

Normal structure

Miniaturization


TCPCMxxxxxxxxxxxxx

1608 size

PCF

Polymer type

Facedown structure

Small size/Low profile/High Cap


TCPCFxxxxxxxxxxxxx

1608 / 2012 size

PFL

Polymer type

Frameless structure

Small size/Low profile/High Cap


TCPFLxxxxxxxxxxxxx

1608 / 2012 / 3216 size

Polymer product line


Appendix Line-Up

(3528 size)

P/N

Dimension Rated Capacitance DF ESR LC

(L*W*H,mm) Voltage @120,25 @120,25 @100,25 (uA,Max)

(V) (uF,±20%) (%,Max) (mΩ,Max)

TCPCS0E227MBAR0035

3528 2.0t

2.5

220

8 35 55.0

TCPCS0E227MBAR0025 8 25 55.0

TCPCS0E227MBAR0015 8 15/300kHz 55.0

TCPCS0E337MBAR0015 330

8 15/300kHz 82.5

TCPMS0E337MBAR0009 8 9/300kHz 165.0

TCPCS0J476MBAR0070

6.3

47

8 70 29.6

TCPCS0J476MBAR0040 8 40 29.6

TCPCS0J476MBAR0035 8 35 29.6

TCPCS0J107MBAR0070

100

8 70 63.0

TCPCS0J107MBAR0045 8 45 63.0

TCPCS0J107MBAR0040 8 40 63.0

TCPCS0J107MBAR0035 8 35 63.0

TCPCS0J157MBAR0070

150

8 70 94.5

TCPCS0J157MBAR0035 8 35 94.5

TCPCS0J157MBAR0025 8 25 94.5

TCPCS0J227MBAR0035 220

8 35 139.0

TCPCS0J227MBAR0025 8 25 139.0

TCPCS1A336MBAR0070

10

33 8 70 33.0

TCPCS1A336MBAR0035 8 35 33.0

TCPCS1A476MBAR0070

47

8 70 47.0

TCPCS1A476MBAR0040 8 40 47.0

TCPCS1A476MBAR0035 8 35 47.0

Sample available


Appendix Line-Up

(Small size & Low Profile)

P/N

Dimension Rated Capacitance DF ESR LC

(L*W*H,mm) Voltage @120,25 @120,25 @100,25 (uA,Max)

(V) (uF,±20%) (%,Max) (mΩ,Max)

TCPCS0J476MLAR0070

3528 1.5t 6.3

47

8 70 29.6

TCPCS0J476MLAR0040 8 40 29.6

TCPCS0J476MLAR0035 8 35 29.6

TCPCS0J157MLAR0200

150

10 200 94.5

TCPCS0J157MLAR0070 8 70 94.5

TCPCS0J157MLAR0035 8 35 94.5

TCPCL0J476MTAR0070

3528 1.2t 6.3

47

8 70 29.6

TCPCL0J476MTAR0040 8 40 29.6

TCPCL0J476MTAR0040 8 35 29.6

TCPCL0J107MTAR0070 100

8 70 63.0

TCPCL0J107MTAR0035 8 35 63.0

TCPFL0J107MAAR101S 3216 1.0t 6.3 100 10 100 126.0

TCPCS1A475MPAR1000 2012 1.2t 10 4.7 6 1000 5.0

TCPCF0J476MRAR0200

2012 1.0t 6.3 47

10 200 59.2

TCPCF0J476MRAR0150 10 150 59.2

TCPFL0J107MPAR151S 100* 10 150 126.0

TCPCM0J475MJAR0500

1608 1.0t 6.3

4.7 6 500 10.0

TCPCM0J106MJAR0500 10

6 500 10.0

TCPCM0J106MJAR0300 6 200 10.0

TCPCF0J226MJAR0300 22 10 300 27.7

TCPCF0J336MJAR0300 33* 10 200 41.6

TCPFL0J476MJAR201S 47* 10 200 59.2

TCPCM1A475MJAR0500 10 4.7 6 500 10.0

TCPCM1A225MKAR0500 1608 0.9t 10 2.2 6 500 2.2

Sample available * world first


Thank you

SEMCO Polymer Tantalum - Maritexdownload.maritex.com.pl/pdfs/pa/tantal-poly.pdfTitle ISSUE TREND -...

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