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resistion
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re: Darkhorse litho technologies stay in NGL race
resistion   2/15/2012 9:13:40 AM
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If only a small fraction of the chip layers get multiple patterning or double patterning, and most design rules on the SOC are very loose, the extra costs will be diluted. So the "worst case" scenario shouldn't be so bad.

EnricoHTC
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re: Darkhorse litho technologies stay in NGL race
EnricoHTC   2/15/2012 1:59:31 PM
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A healthy mix of technologies will be required. Who will make the masks for Imprint technology or inspect and repair them 1x!! Who will pattern the base structures for directed self assembly, repetitive patterns only?? It might work for memory cells, others? Rapid prototyping and critical layers of the 1xnm and 2xnm nodes, E-Beam dirct write will be the solution.....no masks, easy to change, or simulate process changes, adapt depending on the flow changes across the wafer.. A lot of challenges ahead....smart device integration might be a better way to improve the performance of devices, not just scaling!! Enrico

double-o-nothing
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re: Darkhorse litho technologies stay in NGL race
double-o-nothing   2/16/2012 3:44:26 AM
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Even with DRAM, ~50% layers going from double to triple patterning shouldn't be too bad. Already much better than same 50% already forced to go double patterning.

pinhead1
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re: Darkhorse litho technologies stay in NGL race
pinhead1   2/16/2012 2:53:40 PM
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I think the concern is that with the expense of the fancy litho tools, most fabs would only have 1 or 2 initially. Then when you have all of the critical layers needing to go through the tool multiple times, (active, poly, contact, metals and vias) you end up with wafers just queued behind the litho tool all_the_time - because you don't just have 1 lot at a time running in your fab.

pixies
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re: Darkhorse litho technologies stay in NGL race
pixies   2/16/2012 3:31:15 PM
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One thing EUV is good at is creating jobs, high paying jobs for physicists and engineers, for a long time. :)

resistion
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re: Darkhorse litho technologies stay in NGL race
resistion   2/17/2012 6:19:31 AM
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EUV doesn't have so many nodes left. Unless you mean to include the next wavelength.

resistion
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re: Darkhorse litho technologies stay in NGL race
resistion   2/17/2012 6:33:17 AM
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I think we can only count 10 nm and 7 nm, then what..and that would not be single patterning anymore either. CD variations on the order of lattice constants.

resistion
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re: Darkhorse litho technologies stay in NGL race
resistion   2/17/2012 9:18:37 AM
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The critical layer tools need to be double or higher throughput, along with the track.

ebmfuser
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re: Darkhorse litho technologies stay in NGL race
ebmfuser   2/17/2012 11:04:02 PM
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Truly a shame that more 'professionals' don't look more seriously at e-beam lithography themselves, and not take the word of people in the photomask industry, who would directly be threatened if mask-less lithography came into popularity. E-beam litho has demonstrated nano-level capability for more than 20 years, with comparative overlay capability equaling the best aligners out there. Yes, throughput is an issue, but at 1/6 (or less) the cost of an good immersion stepper, you can buy several!!! Truth is that even the finest nano-imprint tool or EUV stepper will require masks, and they will only be available via e-beam lithography (as well as being ridiculously expensive and short lived). Direct write is a viable technology - today!

ebmfuser
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re: Darkhorse litho technologies stay in NGL race
ebmfuser   2/17/2012 11:06:42 PM
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AND, the cost savings in masks alone would be enormous!!!

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