Intel III 450 MHz 80525PY450512 Data Sheet

Product codes
80525PY450512
Page of 101
Datasheet
67
S.E.C.C. and S.E.C.C.2 Mechanical Specifications
5.3
S.E.C.C.2 Structural Mechanical Specification
The intention of the structural specification for S.E.C.C.2 is to ensure that the package will not be 
exposed to excessive stresses that could adversely affect device reliability. 
 illustrates the 
deflection specification for deflections away from the heatsink
 illustrates the deflection 
specification in the direction of the heatsink. 
The heatsink attach solution must not induce permanent stress into the S.E.C.C.2 substrate with the 
exception of a uniform load to maintain the heatsink to the processor thermal interface. 
 
and 
 define the pressure specification.
Figure 44. Intel
®
 Pentium
®
 III Processor Markings (S.E.C.C.2 Package)
Table 30.  Description Table for Processor Markings (S.E.C.C.2 Packaged Processor)
Code Letter
Description
A
Logo
C
Trademark
D
Logo
F
Dynamic Mark Area – with 2-D matrix
NOTE:
Please refer to the Pentium
®
 III
Processor Specification Update
for this information.
D
F
"""" " """ "" "
""""" " " " "
""" " " " """"
""""  "" """ ""
" " " " "" " " "
"""" " " " " ""
""" " "" """ " "
"" "" " "" " ""
" " " """""  ""
" " " "" "
Figure 45. Substrate Deflection away from Heatsink
F/2
F/2
5 cycles maximum
0.025
Processor Substrate