參數(shù)資料
型號: pentium processor with MMX
廠商: Intel Corp.
英文描述: 32-bit processor with MMX technology(32位帶MMX技術處理器)
中文描述: 32位MMX技術(32位帶MMX公司的技術處理器處理器)
文件頁數(shù): 48/51頁
文件大?。?/td> 479K
代理商: PENTIUM PROCESSOR WITH MMX
PENTIUM PROCESSOR WITH MMX TECHNOLOGY
E
48
5/23/97 10:47 AM 24318502.DOC
Table 20. Thermal Resistance for SPGA Packages
Heatsink Height
θ
JC
θ
CA
(°C/Watt) vs. Laminar Airflow (linear ft/min)
(inches)
(°C/Watt)
0
100
200
400
600
800
0.25
0.9
9.2
8.1
6.7
4.6
3.7
3.1
0.35
0.9
8.9
7.6
6.1
4.1
3.4
2.9
0.45
0.9
8.5
7.1
5.4
3.7
3.0
2.6
0.55
0.9
8.2
6.6
4.8
3.3
2.7
2.4
0.65
0.9
7.8
6.1
4.4
3.1
2.5
2.2
0.80
0.9
7.1
5.4
4.0
2.9
2.3
2.1
1.00
0.9
6.4
4.8
3.7
2.7
2.2
1.9
1.20
0.9
6.0
4.4
3.4
2.5
2.1
1.9
1.40
0.9
5.5
4.0
3.1
2.3
2.0
1.8
Without Heatsink
1.4
14.4
13.4
12.1
9.7
8.0
7.0
NOTES:
Heatsinks are omni directional pin aluminum alloy.
Features were based on standard extrusion practices for a given height:
Pin size ranged from 50 to 129 mils
Pin spacing ranged from 93 to 175 mils
Based thickness ranged from 79 to 200 mils
Heatsink attach was 0.005" of thermal grease.
Attach thickness of 0.002" will improve performance approximately 0.3oC/Watt.
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