topic Re: Highlight on wafer map in Discussions

Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 15:18:46 GMT

Hi,

Is there a way to select the region on the wafer map like a wedge shape (yellow region in the snippet) across the 4th quadrant of the circle between 4'o clock to 5'o clock?

I am aware of doing lasso selection but I am wondering if I can do a more symmetric selection using formula or jsl way?

Thanks,

Re: Highlight on wafer map

jthi — Thu, 15 Aug 2024 15:16:08 GMT

Sure. You could create a formula those slices and use data filter with "select" enabled on that formula column to perform the selections.

Re: Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 15:17:04 GMT

@jthi I was thinking the same but I am not sure how to derive the formula

Re: Highlight on wafer map

jthi — Thu, 15 Aug 2024 15:19:40 GMT

Neither do I because I don't know what you wish to select. There seems to be some angle, inner circle, some width and maybe some weird shape inside the red area (could be that everything just isn't colored).

Re: Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 15:25:16 GMT

@jthi I am thinking to create a wedge shape with size X = 8 dies and Y = 16 dies between 4'o clock to 5'o clock with 45 deg angle

Re: Highlight on wafer map

jthi — Thu, 15 Aug 2024 15:34:06 GMT

Do you want a wedge shape or rectangle? Could you properly draw it and mark the "measures" you have?

Re: Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 15:44:01 GMT

Either one is fine. I have roughly highlighted the region. Die size doesn't matter as long as the shape is a rectangle

Re: Highlight on wafer map

Mark_Bailey — Thu, 15 Aug 2024 15:51:09 GMT

The solution might be easier in polar coordinates. Create two new data columns with the radius and angle for each data point. Plot the data using the new coordinates and see if the target rows are easier to identify with a lower and upper bound on the radius and angle. You can interactively try different selection criteria using a data filter. The selected rows would define the targets in the original Cartesian coordinates of the wafer map.

Re: Highlight on wafer map

hogi — Thu, 15 Aug 2024 18:38:40 GMT

You could add quickselector buttons to the plot - like in this post :
https://community.jmp.com/t5/Discussions/How-to-use-multiple-columns-with-shape/m-p/745037/highlight/true#M92483

Just define a formula for your segment and use the 0/1 to add data points as controls outside of your wafermap.

Re: Highlight on wafer map

Mark_Zwald — Thu, 15 Aug 2024 16:21:29 GMT

Was going to post this. This is probably the best solution for this problem.

You can use the Die (x,y) coordinates to compute radius and angle formula columns, and data filter on those columns.

Re: Highlight on wafer map

hogi — Thu, 15 Aug 2024 17:44:38 GMT

Disadvantage of the data filter (the Local one) : select is disabled.

Here is a wish to make this mode available:
https://community.jmp.com/t5/JMP-Wish-List/Local-Data-Filter-don-t-disable-the-SELECT-option/idi-p/581826

Re: Highlight on wafer map

jthi — Thu, 15 Aug 2024 18:21:49 GMT

I went a bit wrong way with the rectangle (your shape isn't rectangle) so this doesn't overlay that well with it (I also guessed the corner points).

So I found other function and modified that for JMP. It is closer but it is still using hard-coded corner points

Re: Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 18:43:07 GMT

@jthi This looks good Jarmo. Can you share the table with formula?

Re: Highlight on wafer map

Jackie_ — Thu, 15 Aug 2024 18:43:58 GMT

Thank you'll for your suggestions!

Re: Highlight on wafer map

jthi — Fri, 16 Aug 2024 15:20:34 GMT

Table attached.