Navigator Floor Controller

Offline editor for the creation of equipment setups and device profiles to control manufacturing processes and prevent quality excursions.

The greatest manufacturing gains are only achievable by adapting and optimizing the manufacturing process to each device. How to do this efficiently and flawlessly is a challenge solved by Invantest's Navigator floor controller.

Navigator runs on a factory server and communicates with Invantest cell controllers (also known as station controllers) running at each test cell. Navigator ensures that the correct equipment setup and optimum production controls are applied to every lot tested at both wafer sort and final test.


 

Off-Line Editing of Equipment Setup and Device Profiles

Navigator WaferTest (navWT) simplifies offline preparation of equipment setups and production controls for wafer sort including:

  • Centralized storage of equipment setups and control maps
  • Control map editor to apply test attributes to die: No Touch, Ink Only, Ink & No Touch
  • Layout tools to match the control map to the physical wafer
  • Global editing to apply edits to setup files in the same family
  • Recording of all setup changes for traceability
  • Setting of device specific production controls in device profiles
  • Test floor view that shows current status of all IG.WT test cells
  • View of wafer map results including composite stacked maps

And Navigator FinalTest (navFT) simplifies offline preparation of equipment setups and production controls for final sort including:

  • Centralized storage of equipment setups
  • Recording of all setup changes for traceability
  • Setting of device specific production controls in device profiles

About Device Profiles

How a device behaves during production testing is different for every device due to:

  • differences in wafer fab parameters for devices and lots
  • differences in response to contact resistivity
  • differences in measurement instruments
  • differences in capability (Cpk) of tests
  • differences in equipment
  • differences in probe and socket interfaces

Product engineers use Navigator to create a device profile that defines the critical manufacturing parameters to maximize yields, throughput, and quality of test. Device profiles are the necessary control vehicle for a rapid rise to high stable yields.

Navigator and Integrators

When a lot ID is scanned into an Integrator cell controller at a test cell, the cell controller automatically fetches the correct setup and device profile from Navigator and executes the production process exactly as specified. Invantest cell controllers include a Master Control Tool for remotely adjusting and tuning production controls during testing of a lot to validate a change in control settings before making the change in Navigator for all lots.

Process Standardization across All Equipment

The igFT operator interface and final test process is the same across all different types of equipment used for final test. Standardizing the final test process across all types of equipment eliminates the training, confusion, waste, and operator mistakes from different operating interfaces for different types of equipment.