Attachment To Motherboard; Socket Components; Socket Body Housing - Intel Core i7-800 Specifications

3.2

Attachment to Motherboard

The socket is attached to the motherboard by 1156 solder balls. There are no additional
external methods (that is, screw, extra solder, adhesive, etc.) to attach the socket.
As indicated in
during the attach (reflow) process.
Figure 3-4.

Attachment to Motherboard

Shoulder Shoulder
Screw Screw
3.3

Socket Components

The socket has two main components, the socket body and Pick and Place (PnP) cover,
and is delivered as a single integral assembly. Refer to
drawings.
3.3.1

Socket Body Housing

The housing material is thermoplastic or equivalent with UL 94 V-0 flame rating capable
of withstanding 260 °C for 40 seconds, which is compatible with typical reflow/rework
profiles. The socket coefficient of thermal expansion (in the XY plane), and creep
properties, must be such that the integrity of the socket is maintained for the
conditions listed in
The color of the housing will be dark as compared to the solder balls to provide the
contrast needed for pick and place vision systems.
20
Figure 3-1, the Independent Loading Mechanism (ILM) is not present
Load plate Load plate
Frame Frame
Chapter 5.
Load Lever Load Lever
Back Plate Back Plate
Appendix C
Thermal/Mechanical Specifications and Design Guidelines
LGA1156 Socket
for detailed