The document discusses KEMET's development of a new ultra-small polymer tantalum capacitor. Key points: 1) KEMET is developing a new T597 polymer tantalum capacitor series with case sizes as small as 0805 to address demand for ultra-small solutions. 2) Polymer capacitors offer advantages over traditional tantalum manganese dioxide capacitors like lower ESR, higher voltage ratings, and no ignition failure mode. 3) Initial samples of the new T597 polymer capacitor show capacitance values up to 33uF in an 0805 case size with ESR as low as 83mOhm, outperforming conventional 1206 and 0805 case sizes.

1. Expanding to ultra small case size
T597 Automotive
Joao Pedroso
Nov. 2018
KEMET/TOKIN Proprietary Information

2. 2© KEMET Electronics. All Rights Reserved.
(*)
Automotive
Grade
Ta MnO2
T491
T495 Low
ESR
T498 150ºC
T499 175ºC
Polymer
Automotive
(AEC-Q200)
T591
500h
85ºC/85%RH/Vr
T597(*)
1000h
85ºC/85%RH/Vr
T598 125ºC
1000h
85ºC/85%RH/Vr
T599 150ºC
1000h
85ºC/85%RH/Vr
1st to Market!
1st to Market!
(*) Under Development

3. 3© KEMET Electronics. All Rights Reserved.
Why Polymer?
Polymer is the successor of Tantalum MnO2 Capacitors
• PEDT as cathode counter electrode material
• Low oxygen index - no ignition failure mode
• Single digit ESR in mili-Ω range - less self heating!
• Cost saving potential
• 150ºC samples with double digit μF (22μF and 33μF)
Non catastrophic
Ignition failure
mode due to lower
O2 index
Miniturization &
Extended Life
Board Space and
Pick &Place
Reduction

4. 4© KEMET Electronics. All Rights Reserved.
Interconnected
Tantalum
Particles
Counter Electrode Penetration into Pores
(Manganese Dioxide (MnO2) or Conductive Polymer)
Carbon Ink
Silver
Paint
Manganese Dioxide (MnO2) or
Conductive Polymer
Weld
Tantalum (Ta) & Ta2O5 Dielectric
Silver Adhesive
Carbon Ink
Mold Epoxy
Silver Paint
Washer
Tantalum Wire
Solder Coat
Leadframe
Ta2O5 Dielectric
Ta Metal MnO2 or
Cond. Poly.
Tantalum
Polymer Capacitors
Capacitor Construction – MnO2 vs Polymer
KEMET Confidential

5. Ultra Small Solutions
Where space is a concern?
X Case
7343 - 43
B Case
3528 - 21
T591/T598/T599 Series
S Case
3216 – 12
[1206]
P Case
2012-10
[0805]
T597 Series
….. …..
(Under Development, to be released 2nd half CY19)

6. Ultra Small Solutions
Where space is a concern?
S Case
3216–12
[1206]
P Case
2012-10
[0805]
T597Series
22µF 6,3V 200mΩ
33µF 6,3V 200mΩ
47µF 6,3V 200mΩ
22µF 10V 200mΩ

7. 7© KEMET Electronics. All Rights Reserved.
Under Development Portfolio
Ultra Small Solutions – Where space is a concern?
Cap @ 100 kHZ:
• Polymer = 21,8uF
• 1206 = 9,7uF
• 0805 = 3,6F

8. 8© KEMET Electronics. All Rights Reserved.
Under Development Portfolio
Ultra Small Solutions – Where space is a concern?
Z @ 100 kHZ:
• Polymer = 109 mΩ
• 1206 = 163 mΩ
• 0805 = 437 mΩ
ESR @ 100 kHZ:
• Polymer = 83 mΩ
• 1206 = 4 mΩ
• 0805 = 4,3 mΩ

9. 9© KEMET Electronics. All Rights Reserved.
Polymer Automotive – Small Case
3216-12 - 47uF 6,3V
Good ESR Stability in temperature

10. 10© KEMET Electronics. All Rights Reserved.
Polymer Automotive – Small Case
Board Flex Testing
No “Cracks” or
mechanical
issues

11. 11© KEMET Electronics. All Rights Reserved.
Polymer Automotive – Small Case
Moisture 85ºC / 85% / Vr - 47µF 6.3V 200mΩ

12. 12© KEMET Electronics. All Rights Reserved.
Polymer Automotive – Small Case
Moisture 85ºC / 85% / Vr - 22µF 10V 200mΩ

13. 13© KEMET Electronics. All Rights Reserved.
2018
Road Map - Polymer Automotive
Vision for next 3 Yrs
2017
T599
150ºC
Telecom / Avionics / Industry
/ New Automotive Start Ups
500h Ur 85ºC/85%RH
T591
T598
2019
125ºC
Miniturizatiom
Low Profile
Single Digit
ESR
LV148 – 48V
Reliability
7343-31
22uF/35&50V
7343-43
33uF/35&50V
1000h / 150ºC
7343-43
10uF75V
15uF75V
3216-12
47uF6V
22uF10V
2012-10
22uF6V
7343-20
330uF/2,5V
220uF4V
7343-15
330uF2,5V
7343-20
470uF2,5V
LV 125ºC
/2000h
LV I 125ºC
/4000h
CVs extensions
150ºC /2000h
Expand Portfolio offering / Specific Customer Requirement Life Estimated Time
7343-43
10uF75V
7343-43
15uF75V
2020
Harsh Environmental Solutions
<35V
>= 35V
175ºC
GREY denotes samples and BLUE market release
7343-43
10uF75V
15uF75V
7343-43
10uF100V
7343-43
10uF100V
Txxx
Reliability
7343-43
33uF/35V
HV 125ºC
/2000h
HV II 125ºC
/4000h
Laboratory Material
Settings
Prototype
Samples
7343-31
22uF/35&50V
7343-43
33uF/50V
3216-12
47uF6V
22uF10V 2012-10
22uF6V
Continuos CV Extensions
Additions and Focus in 5
R&D blocks
Support Design in and Mass
Production Ramp Ups
Focus in mass production
readiness and support to
design in. Continuos
expansion of CV offerings
Basic R&D Laboaratory
Activity
LV II & HV I
125ºC /4000h
7343-20
220uF2,5V
9mOhm / 105ºC
7343-31
470uF2,5V
9/6mOhm / 105ºC
7343-31
470uF2,5V
9/6mOhm / 125ºC
3528 -20
220uF6,3V
3528 -20
220uF6,3V

14. Mission Critical
Electronics
High-Performance
Power Management
Where Failure is
Not an Option
Breakthrough Technology Unparalleled Borderless Service Smart People
Innovative Products that
Solve Customer Challenges