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Use With Metrics ICS

List of Questions

1. How do I access the switch patterns within ICS?
Answer

2. What are global switch patterns?
Answer

3. What are scan levels?
Answer

Answers to Questions

1. How do I access the switch patterns within ICS?

The switch patterns are accessed within ICS by pressing the switch button on the ICS toolbar. Checking the "Enable Switch Control" box will initialize the communication of ICS with Metrics Switch. Pressing the Switch setup button gives direct access to the Metrics Switch control interface.

2. What are global switch patterns?

Global switch patterns are patterns to be used with all setups executed. Note that in the Switch Configuration dialogue box the user has the option to use either global or individual setup switch settings. When using individual settings the user must designate in the Setup Editor by pressing the switch button which setting to be used with that setup. Global switch patterns allow the same pattern to be used across several setups. Thus one does not need to select the same switch pattern for each individual setup if they all use the same pattern. Global switch patterns are especially useful when used in combination with scan levels.

3. What are scan levels?

Scan levels are a sequential series of switch patterns that are saved together under one name. The best explanation is given by example. Suppose that the user is testing three (3) devices within a module (also known as a quad or sub-die) with a probe card. Thus they move the probe card so that it is positioned over a specific module. The user can create a switch pattern with three scan levels. The first scan level makes the proper closures to test the first device, the second scan level makes the proper switch closures for the second device, etc. The user then saves this group of patterns with a single file name. From the ICS environment the user specifies in the Switch Configuration dialogue box that ICS uses Global Switch Settings. The select settings button is pressed and the user select the proper setting. The user then enables Auto switch scanning in the Switch Scanning Options section of the Switch Configuration dialogue. The user may specify that the scan level is incremented before each measurement or before each sequence of measurements.