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Chip Image in QFN Package
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sat Nov 11, 2017 8:38 am    Post subject: Chip Image in QFN Package Reply with quote

Here's an old test chip (Direct Digital to Antenna chip) in a QFN package done in IBM 9HP (90nm SiGe BiCMOS). The WeMacro Controller, 4X Inf. 0.1NA, THK KR20 modified rail and Nikon 200mm F4 "Q" tube lens with D800E camera were used. Lighting came from 4 Adorama studio 300AC strobes with foam diffusers and subject was inside a white foam cup on base of a WeMacro Vertical Stand attached to a Ball Head with a pin glued to the QFN backside (removed in post).

A total of 157 images (50um steps) were collected at processed with Zerene.

Best,

Mike

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Saul



Joined: 31 Jan 2011
Posts: 914
Location: Naperville, IL USA

PostPosted: Sat Nov 11, 2017 10:28 am    Post subject: Reply with quote

Impressive. Like very much that black - gold contrast. Any chance to see high res photo ?
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Saul
Studio, horizontal and field setups
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sat Nov 11, 2017 11:09 am    Post subject: Reply with quote

Saul,

Thanks. It posted here on DPReview. The TIFFs are too big, so this is just the JPEG.

https://www.dpreview.com/forums/post/60364643

BTW I have another taken with the Wemacro 5X 0.15NA PLAN APO Long Working Distance with same setup. I didn't want to clog up things with it though.

Best,

Mike
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Saul



Joined: 31 Jan 2011
Posts: 914
Location: Naperville, IL USA

PostPosted: Sat Nov 11, 2017 11:20 am    Post subject: Reply with quote

Mike,
Very nice, well controlled light and perfect details.
Next step - stereo version Wink
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Saul
Studio, horizontal and field setups
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sat Nov 11, 2017 11:32 am    Post subject: Reply with quote

Saul,

Thanks.

Sorry I don't know how to do or even view stereo Sad

I use a Mac, so the software to do this may not be the same or available.

Best,

Mike
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Harald



Joined: 13 May 2011
Posts: 398
Location: Steinberg, Norway

PostPosted: Sat Nov 11, 2017 12:12 pm    Post subject: Reply with quote

Hi there Mike,
Just got to love this Very Happy
Great light and details. I think it´s a jewel...

Thanks for sharing
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Harald

Lier Fotoklubb / NSFF
AFIAP / CPS
BGF / GMV
http://www.500px.com/blender11
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sat Nov 11, 2017 12:51 pm    Post subject: Reply with quote

Harald,

You are welcome sir!!

It is a special "jewel" to me in more ways that one. I have a patent (actually 2) on the circuit, and get a nice picture too Very Happy

Best,

Mike
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Saul



Joined: 31 Jan 2011
Posts: 914
Location: Naperville, IL USA

PostPosted: Sat Nov 11, 2017 12:59 pm    Post subject: Reply with quote

mawyatt wrote:
...Sorry I don't know how to do or even view stereo Sad
I use a Mac, so the software to do this may not be the same or available...

https://zerenesystems.com/cms/stacker/docs/syntheticstereo
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Saul
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mawyatt



Joined: 22 Aug 2013
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PostPosted: Sat Nov 11, 2017 1:02 pm    Post subject: Reply with quote

Harald wrote:
Hi there Mike,
Just got to love this Very Happy
Great light and details. I think it´s a jewel...

Thanks for sharing


I should mention the lighting is tricky, I guess all our macro lighting is tricky but these chips are particularly difficult for me.

I've found over lots of time and experiments that multiple light sources (studio strobes) surrounding the subject chip and highly diffused multiple times works the best.

White styrofoam cups work extremely well, but really eat up the light. So you need strong sources. Thin white foam packing material works well on the strobes, but watch out for the incandescent modeling bulbs in studio strobes they will melt the foam if you allow it to touch the bulb or get very near. Don't ask how I know this Embarassed

Best,

Mike
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sat Nov 11, 2017 1:05 pm    Post subject: Reply with quote

Saul wrote:
mawyatt wrote:
...Sorry I don't know how to do or even view stereo Sad
I use a Mac, so the software to do this may not be the same or available...

https://zerenesystems.com/cms/stacker/docs/syntheticstereo


OK, looks as if I have a homework assignment Rolling Eyes
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sun Nov 12, 2017 10:17 am    Post subject: Reply with quote

Saul wrote:
mawyatt wrote:
...Sorry I don't know how to do or even view stereo Sad
I use a Mac, so the software to do this may not be the same or available...

https://zerenesystems.com/cms/stacker/docs/syntheticstereo


Saul,

I completed a stereo processing with Zerene per shown instructions with 9 section images. I used PS to render a Timeline View of such, after fiddling with things (1st time at this).

This worked eventually and I have a monster file (306MB) in PSD format. All of this took an enormous amount of work, Zerene ran forever on the 9 sets of 157 stacked images with the original massive D800E TIFF files, but produced the results. However I did save the 9 resultant images in JPEG.

After a bunch of editing in LR and PS, it's pretty neat to watch the perspective view change as the image rotates, you can even dive down into the QFN cavity.

I've made some low resolution files, but these are much to big for posting here. Here's the GIF rendered with auto color and only 850 pixels horizontal to fit within 300K file size limit.

Here's a higher resolution version on DPReview.

https://4.img-dpreview.com/files/p/E~forums/60369170/62258713fcf14c4f82f0841c589028fa

https://www.dpreview.com/forums/post/60369170

Best,

Mike

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JH



Joined: 09 Mar 2013
Posts: 946
Location: Vallentuna, Stockholm, Sweden

PostPosted: Sun Nov 12, 2017 11:08 am    Post subject: Reply with quote

Great picture and nice gif.
Best regards
Jörgen Hellberg
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ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 7265
Location: Near London, UK

PostPosted: Sun Nov 12, 2017 11:22 am    Post subject: Reply with quote

Wow, impressive work.

(Though my class of 13 year olds will probably ask "Is there an App for that? ")

What frequency RF is possible from a chip like this, by the way?
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Chris R
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Saul



Joined: 31 Jan 2011
Posts: 914
Location: Naperville, IL USA

PostPosted: Sun Nov 12, 2017 1:39 pm    Post subject: Reply with quote

mawyatt wrote:
...All of this took an enormous amount of work, Zerene ran forever ...


Mike,

What I can see from the your result - it was worth efforts !
Impressive !
I'm always resizing photos for stereo - Zerene runs much more faster . Of course, it will be problem with post-processing and final look, but ...

Now, new assignment - cross eyed stereo Wink
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Saul
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mawyatt



Joined: 22 Aug 2013
Posts: 991

PostPosted: Sun Nov 12, 2017 1:56 pm    Post subject: Reply with quote

Saul wrote:
mawyatt wrote:
...All of this took an enormous amount of work, Zerene ran forever ...


Mike,

What I can see from the your result - it was worth efforts !
Impressive !
I'm always resizing photos for stereo - Zerene runs much more faster . Of course, it will be problem with post-processing and final look, but ...

Now, new assignment - cross eyed stereo Wink


OK I give, what's that!! Rolling Eyes

Cheers,

Mike
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