Showing posts with label STDF. Show all posts
Showing posts with label STDF. Show all posts

Wednesday, April 10, 2019

How to Enable WIR, WCR, WRR records on STDF in Unison



Unison doesn't automatically add WIR, WCR, and WRR records into STDF file. To enable it, you need to add Wafer Descriptor object in the test program. To do this, follow the instructions below:


  1. In Optool menu, go to Tools > Wafer Map, the WaferMapTool will open.
  2. In the WaferMapTool, create Wafer Descriptor object. In my example below, I named the object “PutWaferDescriptorObjectNameHere”



  1. In the WaferMapTool menu, go to Edit > Edit Wafer Description…, the Edit Wafer Description Tool will open
  2. Put all the necessary values in the fields as shown below. Click OK


  1. Now that you have the Wafer Descriptor object. Let’s make it active.  In OpTool menu, go to Setup > Active Object > Wafer…, select the Wafer Descriptor you created. In my case it’s the “PutWaferDescriptorObjectNameHere”.
  2. Don’t forget to SAVE your program!!!
  3. Now from here on, as long as you use CURI driver that is for prober/wafer testing, you should generate WIR, WCR, and WRR in your STDF file.