costs

By: RichardC (tich.delete@this.pobox.com), April 20, 2017 4:21 am
Room: Moderated Discussions
RichardC (tich.delete@this.pobox.com) on April 19, 2017 12:08 pm wrote:

> And my impression is that a whole lot of products stayed on 28-32nm processes for a long long
> time, because they didn't *need* the extra density, and the cost per transistor on the newer
> processors stayed high for quite a while (though I guess eventually they must have matured
> and got cheaper). In other words, the move to smaller feature sizes isn't an economic slam-dunk
> the way it used to be. Is that right ?

This article from 2014:
http://electroiq.com/blog/2014/03/moores-law-has-stopped-at-28nm/

... discusses how cost-per-transistor has stalled, and the increasing costs of masks
(which would in part explain why the latest processes only make sense for high-volume
products where the mask NRE can be amortized over many units). Also mentions high costs
associated with finfets.

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