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4hv.org :: Forums :: General Chatting
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Post Your Cool Pic Here!

Move Thread LAN_403
...
Thu Dec 18 2008, 08:10AM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
Had the microscope out for some soldering work, decided to take some pictures:
view of a 405nm laser diode inside a to can (it is 500um long in the longest dimension, and what you see is just a gold plating on top of the sapphire substrate)

1229587140 56 FT6000 450nm

front view:
1229587231 56 FT6000 405nm Front

illuminated under UV light
1229587257 56 FT6000 405nm Front Uv

the die glows yellow! (note-that diode isn't lasing anymore (wirebond no longer attached, and diode damaged) so it was being illuminated by an external 405nm laser diode


then:
overall view of a MEMS assembly, that appears to be some type of variable capacitor. There are these very fine fingers which are all floating on a complex system of levers made out of silicon

1229587424 56 FT6000 Mems Overall

zoomed in on the fingers
1229587541 56 FT6000 Mems Fingers Meshed

and the floating fingers removed from the device
1229587595 56 FT6000 Mems Fingers Detail

The fingers are about 5-10uM wide, and about 200um thick amazed
(there is also a piece of solid gold wire bond wire in the image just for kicks)

all of these images are strait off the camera, just resized for your viewing pleasure smile
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aonomus
Thu Dec 18 2008, 08:30AM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Wow, those MEMS photos are sweet. Nice microscope (how many people have one sitting around at home eh?)
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Avi
Thu Dec 18 2008, 03:00PM
Avi Registered Member #580 Joined: Mon Mar 12 2007, 03:17PM
Location: Melbourne, Australia
Posts: 410
I have 3.
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aonomus
Sat Dec 20 2008, 09:39PM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
So I finally got my 200x 0.01uF 1600V FKP1 WIMA capacitor package

In Canada, capacitors come in bags.
IMG 1068

Closeup
IMG 1069

The pile
IMG 1070

All lined up, 200 of them... (yes I had nothing better to do than set up that shot.
IMG 1071

IMG 1072
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Myke
Sat Dec 20 2008, 10:29PM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Wow, nice. That's a lot of caps. You got them from that ebay auction thing?
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aonomus
Sat Dec 20 2008, 10:58PM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Yea, ebay ftw eh?
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tesla500
Tue Dec 23 2008, 04:34AM
tesla500 Registered Member #347 Joined: Sat Mar 25 2006, 08:26AM
Location: Vancouver, Canada
Posts: 106
... wrote ...

overall view of a MEMS assembly, that appears to be some type of variable capacitor. There are these very fine fingers which are all floating on a complex system of levers made out of silicon


What did this MEMS assembly come out of?
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Dr. Drone
Tue Dec 23 2008, 08:46PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades
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Coronafix
Wed Dec 24 2008, 12:00AM
Coronafix Registered Member #160 Joined: Mon Feb 13 2006, 02:07AM
Location: Melbourne, Australia
Posts: 938
Now you need some hardcore tats doc ;)
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rp181
Wed Dec 24 2008, 12:07AM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
now get yourself one of these =p


Motorcycle
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