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For beyond 7 nm node BEOL, line resistance (R) is assessed among four metallization schemes: Ru; Co; Cu with TaN/Ru barrier, and Cu with through-cobalt self-forming barrier (tCoSFB) [1]. Line-R vs. linewidth of Cu fine wires with TaN/Ru barrier crosses over with barrier-less Ru and Co wires for beyond-7 nm node dimensions, whereas Cu with tCoSFB remains competitive, with the lowest line R for 7 nm...
Background: There is no specific instrument available to measure cognitive deficits as reported by bipolar patients in China. Therefore, if discrepancies between bipolar patients reports and the results of neuropsychological tests which have been described in other countries existing or not in Chinese bipolar disorder patients have not been known yet. And it is completely blank about the subjective...
In order to maximize Cu volume and reduce via resistance, barrier thickness reduction is a strong option. Alternative barriers for next-generation BEOL were evaluated in terms of barrier performance to O2 and Cu diffusion, and effects on reliability. A clear correlation of O2 barrier performance to electromigration was observed, suggesting that the key role of the barrier layer is to prevent oxidation...
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