All your quality products supplier.

Super Pillar

Home > Products > Super Pillar

Concepts

  • Build a Al/Cu Pillar through the MCPCB
  • Bypass the pre-preg to eliminate one layer of thermal resistance

Advantages

  • Increase efficiency of thermal dissipation
  • Withstand high power components
  • Drive higher current
  • Allow usage of lower cost pre-preg

Innovative Processes

  • Mechanical shaping
  • Flexible lamination scale
  • Roll-to-roll manufacturing
  • Stable production process

Thermal Performance Test - Sample Configuration

MCPCB Dimension Layer 1 Layer 2 Layer 3 Layer 4 Layer 5
Conventional Diameter
1.40" x 0.049"
1 oz
35 micron
Cu Foil
k = 390
6 mil
Sekisui KNDJ002
k = 1.7
1 oz
35 micron
Cu Foil
k = 390
3 mil
Sekisui KNDJ002
k = 1.7
1 mm
Copper Base
k = 390
Super Pillar Diameter
1.40" x 0.049"
1 oz
35 micron
Cu Foil
k = 390
6 mil
Sekisui KNDJ002
k = 1.7
1 oz
35 micron
Cu Foil
k = 390
3 mil
Sekisui KNDJ002
k = 1.7
1 mm
Copper Base
k = 390
For more information: info@cofan-pcb.com
With the same power input, the Super Pillar MCPCB has an extremely low thermal resistance and effective thermal path when compared to Conventional MCPCB.
There is a significant temperature difference of ~56oC within 80 seconds.
The Super Pillar decreases the junction temperature drastically.


See the changes of transient locally relative temperature comparison
Capturing interval: 3-4 seconds
Time elapsed: ~ 80 Seconds

Test Results

Items Unit Conventional
MCPCB
Super Pillar Super Pillar
Model Name P/N MCPCB with LZP
(4x6) Emitter
MCPCB with LZP
(4x6) Emitter
MCPCB with LZP (4x6) Emitter
LED Current mA 800 780 2800
Input Voltage V 16.4 17.6 19.0
Input Power W 13.12 13.73 53.2
Ta ”ĘC 25.37 25.38 25.74
Tslug ”ĘC 64.70 55.10 107.28
T bottom ”ĘC 46.98 53.57 102.23
T board ”ĘC 45.26 49.81 93.96
R slug - bottom ”ĘC/W 1.35 0.11 0.095
R slug - board ”ĘC/W 1.48 0.39 0.25

Conclusion

Super Pillar MCPCB provides a direct thermal conductive path for high power LEDs by bypassing the pre-preg layer. As a result, the optical efficiency increases while thermal decay decreases. This allows users to drive components at higher currents while still conserving energy.
Super Pillar technology dramatically improves thermal conduction and decrease the junction temperature drastically.

Contact us

COFAN USA
46177 Warm Springs Blvd.
Fremont, CA 94539 USA
Phone: 1-800-766-6097
Fax: 1-510-490-7931
info@cofan-usa.com
COFAN CANADA
2900 Langstaff Rd. #18 Vaughan,
ON. L4K 4R9 Canada
Phone: 1-877-228-3250
Fax: 1-905-761-8889
info@cofan-pcb.com