| View previous topic :: View next topic |
| Author |
Message |
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
 Posted: Sat Nov 11, 2017 8:38 am Post subject: Chip Image in QFN Package |
 |
|
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
 |
|
| Back to top |
|
 |
Saul
Joined: 31 Jan 2011
Posts: 1205
Location: Naperville, IL USA
|
| Posted: Sat Nov 11, 2017 10:28 am Post subject: |
|
|
Impressive. Like very much that black - gold contrast. Any chance to see high res photo ?
_________________
Saul
Studio, horizontal and field setups |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sat Nov 11, 2017 11:09 am Post subject: |
|
|
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 |
|
| Back to top |
|
|
Saul
Joined: 31 Jan 2011
Posts: 1205
Location: Naperville, IL USA
|
| Posted: Sat Nov 11, 2017 11:20 am Post subject: |
|
|
Mike,
Very nice, well controlled light and perfect details.
Next step - stereo version 
_________________
Saul
Studio, horizontal and field setups |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sat Nov 11, 2017 11:32 am Post subject: |
|
|
Saul,
Thanks.
Sorry I don't know how to do or even view stereo 
I use a Mac, so the software to do this may not be the same or available.
Best,
Mike |
|
| Back to top |
|
|
Harald
Joined: 13 May 2011
Posts: 472
Location: Steinberg, Norway
|
| Posted: Sat Nov 11, 2017 12:12 pm Post subject: |
|
|
Hi there Mike,
Just got to love this 
Great light and details. I think it´s a jewel...
Thanks for sharing
_________________
Kind Regards
Harald
Lier Fotoklubb / NSFF
AFIAP / CPS
BGF / GMV
http://www.500px.com/blender11 |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sat Nov 11, 2017 12:51 pm Post subject: |
|
|
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
Best,
Mike |
|
| Back to top |
|
|
Saul
Joined: 31 Jan 2011
Posts: 1205
Location: Naperville, IL USA
|
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sat Nov 11, 2017 1:02 pm Post subject: |
|
|
| Harald wrote: | Hi there Mike,
Just got to love this
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 
Best,
Mike |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sat Nov 11, 2017 1:05 pm Post subject: |
|
|
OK, looks as if I have a homework assignment  |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sun Nov 12, 2017 10:17 am Post subject: |
|
|
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 high 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
Last edited by mawyatt on Tue Jan 02, 2018 10:54 am; edited 1 time in total |
|
| Back to top |
|
|
JH
Joined: 09 Mar 2013
Posts: 1153
Location: Vallentuna, Stockholm, Sweden
|
| Posted: Sun Nov 12, 2017 11:08 am Post subject: |
|
|
Great picture and nice gif.
Best regards
Jörgen Hellberg
_________________
Jörgen Hellberg, my webbsite www.hphoto.se |
|
| Back to top |
|
|
ChrisR
Site Admin
Joined: 14 Mar 2009
Posts: 7831
Location: Near London, UK
|
| Posted: Sun Nov 12, 2017 11:22 am Post subject: |
|
|
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?
_________________
Chris R |
|
| Back to top |
|
|
Saul
Joined: 31 Jan 2011
Posts: 1205
Location: Naperville, IL USA
|
| Posted: Sun Nov 12, 2017 1:39 pm Post subject: |
|
|
| 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
_________________
Saul
Studio, horizontal and field setups |
|
| Back to top |
|
|
mawyatt
Joined: 22 Aug 2013
Posts: 1595
Location: Clearwater
|
| Posted: Sun Nov 12, 2017 1:56 pm Post subject: |
|
|
| 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 |
OK I give, what's that!!
Cheers,
Mike |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
