Durability; Markings; Component Insertion Forces; Socket Size - Intel Xeon 5500 Series Design Manual

LGA1366 Socket
2.5

Durability

The socket must withstand 30 cycles of processor insertion and removal. The max
chain contact resistance from
cycles.
The socket Pick and Place cover must withstand 15 cycles of insertion and removal.
2.6

Markings

There are three markings on the socket:
• LGA1366: Font type is Helvetica Bold - minimum 6 point (2.125 mm).
• Manufacturer's insignia (font size at supplier's discretion).
• Lot identification code (allows traceability of manufacturing date and location).
All markings must withstand 260 °C for 40 seconds (typical reflow/rework profile)
without degrading, and must be visible after the socket is mounted on the
motherboard.
LGA1366 and the manufacturer's insignia are molded or laser marked on the side wall.
2.7

Component Insertion Forces

Any actuation must meet or exceed SEMI S8-95 Safety Guidelines for Ergonomics/
Human Factors Engineering of Semiconductor Manufacturing Equipment, example Table
R2-7 (Maximum Grip Forces). The socket must be designed so that it requires no force
to insert the package into the socket.
2.8

Socket Size

Socket information needed for motherboard design is given in
This information should be used in conjunction with the reference motherboard keep-
out drawings provided in
mechanical components.
Thermal/Mechanical Design Guide
Table 4-4 must be met when mated in the 1st and 30th
Appendix B to ensure compatibility with the reference thermal
Appendix C.
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