| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
|---|
| Outline of Final Research Achievements |
In this study, in order to realize the DC power supply to CMOS logic LSI, power inductors embedded in an organic interposer using two types of magnetic cores (Zn-Fe ferrite thick film and carbonyl-iron/epoxy composite thick film) have been developed, and the CMOS switch buck DC-DC converter has been developed and evaluated. The developed 180 nm-CMOS switch buck DC-DC converter with embedded Zn-Fe ferrite core inductor has typical specifications as follows; switching frequency; 50 MHz, main circuit conversion efficiency; 74% at 2 V input/0.855V-1A output condition. The interposer-embedded power inductor and interposer-integrated CMOS switch DC-DC converter technologies will enable to realize the package-level DC power grid contributing to save electric energy in various electronic systems.
|
