Decapped InGaAs APD/TIA device, ex Terabeam, from eBay:
I don't have a microscope, so I took this using a 12.5 mm focal length achromat lens attached to my cell phone with some gycol pthalate wax--it came out pretty well!
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
What do you use to decap the plastic, without damaging the dice? I am thinking about moving some dice to new PCBs.
A file. It's a metal can package with a lens.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
Nice photo. It looks like the APD mounting platform is way off-center, but the APD itself is just about in the center of the pin circle. Which is why it's practically falling off the mount.
Are the various little wirebonded gadgets capacitors?
There are some cool video microscopes in the $50-250 range.
John
Pin 4 is a thermistor, the rest are caps. I looked at another model, and the APD mount is off centre the same way.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
Do you have some nice suggestions? I can use google, but I have no experience in that field, and its difficult to separate trash and gold. :)
Next you will be posting snazzy pictures of Andromeda taken with the same call phone! This is soooo cool!
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