R
5Environmental Requirements
Design, including materials, shall be consistent with the manufacture of units that meet the following environmental reference points.
The reliability targets in this section are based on the expected field use environment for a desktop product. The test sequence for new sockets will be developed using the
Figure
Establish the Market/ Expected Use Environment for the Technology
Freeze Stressing
Requirements and
Perform Additional Data
Turns
Develop Speculative Stress Conditions Based on Historical Data, Content Experts, and Literature Search
Perform Stressing to Validate Accelerated Stressing Assumptions and Determine Acceleration Factors
A detailed description of this methodology can be found at:
http://developer.intel.com/design/packtech/245162.htm
The use environment expectations assumed are for desktop processors, based on an expected life of 7 to 10 years, are listed in Table
Table
Use Environment | Speculative Stress | 7 Year Life | 10 Year Life | |
Condition | Expectation | Expectation | ||
| ||||
|
|
|
| |
Slow small internal gradient changes due | Temperature Cycle | 1500 cycles with a | 2150 cycles with | |
to external ambient (temperature cycle or |
| mean ∆ T = 40OC | a mean ∆ T = | |
externally heated). |
|
| 40OC | |
High ambient moisture during | THB / HAST | 62,000 hrs at | 89,000 hrs at | |
state (operating voltage). |
| 30° C, 85% RH | 30° C, 85%RH | |
|
|
|
| |
High Operating temperature and short | BAKE | 62,000 hrs at | 89,000 hrs at | |
duration high temperature exposures. |
| Tjmax | Tjmax | |
|
|
|
|
mPGA604 Socket Design Guidelines | 29 |