AMD 8 manual Mechanical Data, Die Loading, Preliminary Information, Chapter

Preliminary Information

25175H —March 2003 AMD Athlon™ XP Processor Model 8 Data Sheet

10 Mechanical Data

The AMD Athlon™ XP processor model 8 connects to the motherboard through a Pin Grid Array (PGA) socket named Socket A. This processor utilizes the organic pin grid array (OPGA) package type described in this chapter. For more information, see the AMD Athlon™ Processor-Based Motherboard Design Guide, order# 24363.

10.1Die Loading

The processor die on the OPGA package is exposed at the top of the package. This feature facilitates heat transfer from the die to an approved heat sink. Any heat sink design should avoid loads on corners and edges of die. The OPGA package has compliant pads that serve to bring surfaces in planar contact. Tool-assisted zero insertion force sockets should be designed so that no load is placed on the substrate of the package.

Table 20 shows the mechanical loading specifications for the processor die. It is critical that the mechanical loading of the heat sink does not exceed the limits shown in Table 20.

Table 20. Mechanical Loading

Location	Dynamic (MAX)	Static (MAX)	Units	Note
Die Surface	100	30	lbf	1
Die Edge	10	10	lbf	2

Notes:

1. Load specified for coplanar contact to die surface.

2. Load defined for a surface at no more than a two-degree angle of inclination to die surface.

Chapter 10 Mechanical Data 49