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docdivakar
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re: What's up with silicon on sapphire?
docdivakar   6/15/2011 2:03:42 AM
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It is great to read something good from my former colleagues. Ron was great to talk to and Mark gave many a clue to a packaging engineer like me who wanted to learn Emag simulations. I also enjoyed working on flip chip on SOS which was quite a challenge in the early 2000's. I still have fond memories of us engineers trying to blast alignment holes thru Sapphire substrate (for an optical comm driver substrate) so we could mount it for passive alignment with the VCSEL & detectors. I am pleased to hear Peregrine is doing well! MP Divakar

Koda23
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re: What's up with silicon on sapphire?
Koda23   6/3/2011 12:02:19 AM
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I also agree that it's hard for me to think of SOS as an emerging technology, but perhaps Peregrine's designs and application for SOS makes it novel? In the mid-80's I designed a 64KB (yes, kilo) memory card that used CMOS/SOS memory modules, each consisting of 2 SOS chips mounted on a DIP substrate with a decoupling cap between them. The application was radiation hardened memory for military computers.

Bob Consultant
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re: What's up with silicon on sapphire?
Bob Consultant   6/2/2011 6:21:10 AM
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Having watched Peregrine (from a distance) for 15 or 20 years, it is good to see that they are not just surviving, but thriving. Still, it is a bit odd to find SOS as an emerging technology. I remember friends at RCA Labs struggling with it about 40 years ago.

Charles.Desassure
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re: What's up with silicon on sapphire?
Charles.Desassure   5/31/2011 5:51:47 PM
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Thanks for sharing. It is awards like this that are meaningful but completely overlooked in the new media. Why?

JanineLove
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re: What's up with silicon on sapphire?
JanineLove   5/31/2011 4:30:14 PM
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If you have a question for Ron or a comment on the award or technology, please use the comments section below.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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