Wafer maps are used in the back end of the IC manufacturing process to annotate the die on a wafer - the annotation may indicate whether the die is good or bad, the "grade" of the device or whether this device is a reference device.
WMEdit (Wafer Map Editor) enables an engineer to view, edit and convert wafer maps from one format to another.
Figure 1: WMEdit displaying an E5-1296 wafer map. The program enables the user to pan and zoom. Placing the cursor over a device provides a readout of the physical location, the array position and the bin code.
Additional input and output formats will be added as our customers request them.
WMAPI based products support over 20 text, XML and binary formats. Many industry standards such as SEMI E-142, G85, IBIS and SINF. Additional formats from probers including TEL, EG and TSK. For a complete list and notes on each format please go to the Map Formats page.
Various Map formats use different terms for parameters and measurements. Our glossary of termspage provides details on terms used and can be useful when converting from one format to another where different terms are used for an identical function.