Mechanical Data
135
April 2004
Revised May 2005
SPRS247E
8
Mechanical Data
8.1
Thermal Data
The following tables show the thermal resistance characteristics for the PBGA
GTS and ZTS mechanical
packages.
Table 8
1. Thermal Resistance Characteristics (S-PBGA Package) [GTS]
NO.
1
2
3
4
5
6
°
C/W
5.60
9.37
20.8
16.8
15.4
14.1
Board Type
JEDEC Low-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
Air Flow (m/s
)
N/A
N/A
0.00
0.5
1.0
2.00
R
Θ
JC
R
Θ
JB
Junction-to-case
Junction-to-board
R
Θ
JA
Junction to free air
Junction-to-free air
1.87
JEDEC High-K Test Card
0.00
7
Psi
JT
Junction to package top
Junction-to-package top
1.98
JEDEC High-K Test Card
0.5
2.03
JEDEC High-K Test Card
1.0
2.12
JEDEC High-K Test Card
2.00
11.1
JEDEC High-K Test Card
0.00
8
Psi
JB
Junction to board
Junction-to-board
10.4
JEDEC High-K Test Card
0.5
10.3
JEDEC High-K Test Card
1.0
10.1
JEDEC High-K Test Card
2.00
Board types are as defined by JEDEC. Reference JEDEC Standard JESD51
9. Test Boards for Area Array Surface Mount Package Thermal
Measurements.
m/s = meters per second
Table 8
2. Thermal Resistance Characteristics (S-PBGA Package) [ZTS]
NO.
1
2
3
4
5
6
°
C/W
5.60
9.37
20.8
16.8
15.4
14.1
Board Type
JEDEC Low-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
JEDEC High-K Test Card
Air Flow (m/s
)
N/A
N/A
0.00
0.5
1.0
2.00
R
Θ
JC
R
Θ
JB
Junction-to-case
Junction-to-board
R
Θ
JA
Junction to free air
Junction-to-free air
1.87
JEDEC High-K Test Card
0.00
7
Psi
JT
Junction to package top
Junction-to-package top
1.98
JEDEC High-K Test Card
0.5
2.03
JEDEC High-K Test Card
1.0
2.12
JEDEC High-K Test Card
2.00
11.1
JEDEC High-K Test Card
0.00
8
Psi
JB
Junction to board
Junction-to-board
10.4
JEDEC High-K Test Card
0.5
10.3
JEDEC High-K Test Card
1.0
10.1
JEDEC High-K Test Card
2.00
Board types are as defined by JEDEC. Reference JEDEC Standard JESD51
9. Test Boards for Area Array Surface Mount Package Thermal
Measurements.
m/s = meters per second