What do you call those clear rubber-like cylindrical solids with embedded devices in

Question

What do you call those clear cylindrical rubber-like solids with embedded devices in which you use a polishing wheel to see cross sectional views of the actual devices. Then after grinding the cylindrical things, you use a microscope to see the actual device. But I want to know what that clear rubber-like solid cylinder is called....

The grinding wheel which I used had an abrasive paper attached to the spinning wheel and continuous water kept flowing so that it could clean the plastic-like cylinders.

Thank You,

Answer 1

It's just a process to examine a delicate chip without breaking it.

I don't think they have a name.

.

Answer 2

Encapsulated cross section sample, or cross section sample, or just sample:

http://www.southbaytech.com/appnotes/87%...

http://www.jeol.com/Default.aspx?tabid=1...

http://www.southbaytech.com/appnotes/12%...