Task
Design and redevelopment of control software for a dated wafer prober.
Implementation of additional customer-specific control and measurement capabilities.
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Requirements
- Inventory of measurement devices, mechanics, and electronics
- Evaluation and verification of the communication protocol between PC and each axis controller
- Software operation by semiskilled personnel, no special knowledge required
- All panels, dialogs and the whole documentation in english
- Definition of measurement and way point positions on chip and wafer level
- Bundling several chips to one wafer without touching the previously taught positions
- Automatic or semi-automatic test run using the previously taught positions
- Manual operation
- Advanced tools for chip and wafer placement
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Solution
Software development in LabWindows/CVI (National Instruments).
Measurement data acquisition with Micro Ohmmeter 580 and Switch System 7001
(both Keithley Instruments), controlled via GPIB. Axis controller communication via RS485.
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