Intel Pentium 4 Processor 478-Pin Socket (mPGA478) Design Guidelines

Intel® Pentium® 4 Processor 478-Pin Socket (mPGA478)

Shorting bar

Figure 4-8. Test fixture mounted bottom view with the pins cut

4.6.1. Procedure for Inductance Measurements:

The measurement equipment required to perform the qualification is:

• Equipment - HP8753D Vector Network Analyzer or equivalent

• Robust Probe Station (GTL4040) or equivalent

• Probes - GS1250 & GSG1250 Air-Co-Planar or equivalent

• Calibration – Cascade Calibration Substrates or equivalent

• Measurement objects – Package test vehicles, sockets, motherboards

Measurement Steps:

(a) Equipment setup

(i) Cables should be connected to the network analyzer and to the probes using the appropriate torque

wrench to ensure consistent data collection every time the measurement is performed

(b) Set VNA

(i) Bandwidth = 300KHz – 3GHz with 801 points

(ii) Averaging Factor = 16

(i) Calibration should be performed at the start of any measurement session.

(ii) Please refer to Intel Calibration Document

(iii) Create Calibration Kit if necessary for 1st time

(iv) Do not perform port extension after calibration