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re: Maskless e-beam litho good for 14-nm , says CEA-Leti
resistion   2/22/2012 2:32:08 AM
If there is a fast (10-100 wph) low-energy (less than keV) e-beam ready at 14 nm or 10 nm, that would be an EUV-killer.

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re: Maskless e-beam litho good for 14-nm , says CEA-Leti
Brutus_II   2/14/2012 5:10:52 PM
Electron microscopes have been converted to e-beam litho at a cost of about $100k that produce 20nm line widths. These can be used for very limited production. The new vector scan (shaped beams) are very expensive (I think they're over $6kk per machine), which makes it questionable whether it's practical to simply add more machines to make up for the lack of processing speed.

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re: Maskless e-beam litho good for 14-nm , says CEA-Leti
DanielRavenNest   2/14/2012 1:00:28 AM
It depends on the cost of the machine. If it's maskless and does not require expensive EUV sources and mirrors, the machine could be potentially less expensive. In that case you just buy more machines to reach the production rate you want.

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re: Maskless e-beam litho good for 14-nm , says CEA-Leti
any1   2/14/2012 12:55:42 AM
I think that are many companies that would use a 10 wafer per hour direct write ebeam tool. Mask costs near leading edge nodes are quite expensive - as are any alternative lithography approaches. And it's likely that throughput would be even higher at higher design nodes. For small volumes and rapid prototyping it would be valuable. And of course some people would be interested in it as a faster mask writing tool.

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re: Maskless e-beam litho good for 14-nm , says CEA-Leti
mcgrathdylan   2/13/2012 7:00:23 PM
A promising development, but even if they make it to 10 wafers per hour, how many manufacturers will embrace this technology?

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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