Materials

Dimensions

Conductivity (W/m K)

in-plane

out-of-plane

PCB

Prepeg

226 μm thick

0.8

0.25

Core

927 μm thick

Copper

30 μm thick

385

BGA Equivalent

400 μm diameter

1 mm pitch

500 μm thick

1 × 103

6.64

C4 Equivalent

100 μm diameter

200 μm pitch

0.7

5.98

Substrate

Copper

15 μm thick

385

Core

400 μm thick

0.65

Diel.

33 μm thick

0..49

Underfill

65 μm thick

0.65

Die (Silicon)

785 μm thick

148

TIM

15 μm thick

2.6

Sealband

4 mm width

3.2

Lid

1 mm thick

385