[vcf-midatlantic] Can anyone identify this mystery IC - Who can do die photographs here ?!

Douglas Crawford touchetek at gmail.com
Sun Aug 21 22:11:07 UTC 2022


Perfect. 2 or 3 is a close enough for now.
That's 12 to 18 transistors, estimated range.

Calling for someone that can image a die!

Thanks Dave.


On 8/21/2022 5:32 PM, Dave McGuire via vcf-midatlantic wrote:
> On 8/21/22 17:07, Douglas Crawford via vcf-midatlantic wrote:
>> Ah, so the red lines are not b/c/e?
>> That's what I was first thinking.
>> Here me trying to make some sense of it
>> https://i.imgur.com/gOZujMR.jpg
>>
>> Red lines inputs?
>> Could the blue things be capacitors?
> 
>    I do not think they're capacitors.  Remember, this is an IC; think 
> three-dimensionally.  All we can see from that picture is the upper 
> metallization layer, where connections to silicon are made.  There are 
> several layers below that.
> 
>> Maybe purple outputs?
>>  From this view... OR gates?
> 
>    Possible.
> 
>> At least I have some agreement now that several learned eyes
>> see transistors. It might be enough for our purposes
>> to just have a good guess of how many transistors there
>> are, and be able to identify them.  What they are doing
>> is a less important detail for our purposes at this
>> point in the exhibit.
> 
>    Yes, there are definitely transistors there.
> 
>> So how many do to think you see in each group?
>> We may never know for sure, but I'll probably run with
>> your number as an estimate.
> 
>    Well, as I said, we'd need a higher-resolution image with better 
> lighting.  We need to be able to see a layer or two below that.  I'm 
> guessing there are two or three.
> 
>                -Dave
> 


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