Differences

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--- tutorial:lapping [2012/03/19 05:07] – [Tips] mcmaster
+++ tutorial:lapping [2015/01/21 07:54] (current) – mcmaster
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 by John McMaster
+-01-20: shot a video, needs to be edited.  Should have some good details
 This tutorial will go through the details of what is needed to setup a lapping machine and basic usage.
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 I found colloidal silica to be a little irritating the first time I tried it without a lapping machine.  I think this was because I had to apply more pressure to make up for the lack of moving equipment as I didn't have any problems when using the lapping machine.  That said, watch out and consider alternatives if its bothering you.
+====== Why? ======
+Lapping relies on mechanical properties to take a slice out of an IC to show a single layer.  This sort of view can be very intuitive, especially in planarized chips.  Note that non-planarized chips may not give as good as results but it can still be useful.
+Heres an example of what you can get out of non-planarized chips (FIXME: these aren't aligned):
+{{gallery>:tutorial:lapping:sram_top_metal.jpg|}}
+{{gallery>:tutorial:lapping:sram_lapped.jpg|}}
 ====== Setup ======