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{{Short description|Observation on the growth of construction costs for a semiconductor fab}}
'''Rock's Law''', named for [[Arthur Rock]], says that the cost of a semiconductor chip [[fabrication plant]] doubles every four years. As of 2003, the price had already reached about 3 billion US dollars.
'''Rock's law''' or '''Moore's second law''', named for [[Arthur Rock]] or [[Gordon Moore]], says that the cost of a [[integrated circuit|semiconductor chip]] [[semiconductor fabrication plant|fabrication plant]] doubles every four years.<ref>{{cite web |title=FAQs |publisher=India Electronics & Semiconductor Association |url=http://www.iesaonline.org/aboutus/faq_pg3.html |access-date=2013-04-09 |archive-date=2017-11-20 |archive-url=https://web.archive.org/web/20171120175509/http://www.iesaonline.org/aboutus/faq_pg3.html |url-status=dead }}</ref> As of 2015, the price had reached about 14 billion US dollars.<ref>{{cite web |first=Lucian |last=Armasu |title=Samsung's New $14 Billion Chip Plant To Manufacture DRAM, Processors In 2017 |agency=Reuters |date=8 May 2015 |publisher=Tom's Hardware |url=http://www.tomshardware.com/news/samsung-14-billion-chip-plant,29058.html}}</ref>


Rock's Law can be seen as the economic flipside to [[Moore's Law]]; the latter is a direct consequence of the ongoing growth of the capital-intensive semiconductor industry&mdash;innovative and popular products mean more profits, meaning more capital available to invest in ever higher levels of [[integrated circuits|large-scale integration]], which in turn leads to creation of even more innovative products.
Rock's law can be seen as the economic flip side to [[Moore's law|Moore's (first) law]] – that the number of transistors in a dense integrated circuit doubles every two years. The latter is a direct consequence of the ongoing growth of the capital-intensive semiconductor industry&mdash; innovative and popular products mean more profits, meaning more capital available to invest in ever higher levels of [[Integrated circuit#LSI|large-scale integration]], which in turn leads to the creation of even more innovative products.{{Citation needed|date=May 2023}}


The semiconductor industry has always been extremely capital-intensive, with very low unit manufacturing costs. Thus, the ultimate [[limits to growth]] of the industry will constrain the maximum amount of capital that can be invested in new products; at some point, Rock's Law will collide with Moore's Law.
The semiconductor industry has always been extremely capital-intensive, with ever-dropping manufacturing [[unit cost]]s. Thus, the ultimate limits to growth of the industry will constrain the maximum amount of capital that can be invested in new products; at some point, Rock's Law will collide with Moore's Law.<ref>{{cite web |url=http://www.edavision.com/200111/feature.pdf |archive-date=6 May 2006 |last=Dorsch |first=Jeff |title=Does Moore's Law Still Hold Up? |publisher=Edavision.com |url-status=bot: unknown |archive-url=https://web.archive.org/web/20060506114410/http://www.edavision.com/200111/feature.pdf }}</ref><ref>{{cite web |url=http://research.microsoft.com/~gray/Moore_Law.html |archive-date=13 November 2008 |last=Schaller |first=Bob |date=1996 |title=The Origin, Nature, and Implications of 'Moore's Law' |publisher=Research.Microsoft.com |url-status=bot: unknown |archive-url=https://web.archive.org/web/20081113014641/http://research.microsoft.com/~gray/Moore_Law.html }}</ref><ref>{{cite journal |first=Jean-François |last=Tremblay |title=Riding On Flat Panels |journal=Chemical & Engineering News |volume=84 |issue=26 |pages=13–16 |date=26 June 2006 |doi= 10.1021/cen-v084n026.p013|url=http://cen.acs.org/articles/84/i26/Riding-Flat-Panels.html}}</ref>


It has been suggested that fabrication plant costs have not increased as quickly as predicted by Rock's Law - indeed plateauing in the late 1990s<ref name="ieee">[http://www.spectrum.ieee.org/print/3752 Rock's Law Fails to Hold]</ref> - and also that the fabrication plant cost ''per transistor'' (which has shown a pronounced downward trend<ref name="ieee"/>) may be more relevant as a constraint on Moore's Law.
It has been suggested that fabrication plant costs have not increased as quickly as predicted by Rock's law indeed plateauing in the late 1990s<ref name=Ross03>{{cite journal |first=Philip E. |last=Ross |title=5 Commandments: The rules engineers live by weren't always set in stone |journal=IEEE Spectrum |year=2003 |url=https://spectrum.ieee.org/5-commandments}}</ref> and also that the fabrication plant cost ''per transistor'' (which has shown a pronounced downward trend<ref name=Ross03/>) may be more relevant as a constraint on Moore's Law.


==See also==
==See also==
*[[Semiconductor device fabrication]]
*[[Semiconductor device fabrication]]
*[[Fabless semiconductor company]]
*[[Fabless manufacturing]]
*[[Wirth's law]], an analogous law about software complicating over time
*[[Semiconductor Consolidation]]
*[[Semiconductor consolidation]]


==References==
==References==
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==External links==
==External links==
*{{cite web |first=Michael |last=Kanellos |title=Soaring costs of chipmaking recast industry |date=2003 |work=CNET |publisher=News.com |url=http://news.com.com/Semi+survival/2009-1001_3-981418.html |url-status=bot: unknown |archive-url=https://archive.today/20130119214941/http://news.com.com/Semi+survival/2009-1001_3-981418.html |archive-date=2013-01-19 }}
* CNET: [http://news.com.com/Semi+survival/2009-1001_3-981418.html Soaring costs of chipmaking recast industry]

{{Computer laws}}


[[Category:Adages]]
[[Category:Adages]]
[[Category:Computer architecture statements]]
[[Category:Computer industry]]
[[Category:Computing culture]]
[[Category:Computing culture]]
[[Category:Electronic design]]
[[Category:Electronic design]]
[[Category:Exponentials]]
[[Category:Temporal exponentials]]
[[Category:Computer industry]]
[[Category:Rules of thumb]]
[[Category:Rules of thumb]]
[[Category:Electronics industry]]

[[fr:Loi de Rock]]
[[pl:Prawo Rocka]]

Latest revision as of 09:10, 3 July 2024

Rock's law or Moore's second law, named for Arthur Rock or Gordon Moore, says that the cost of a semiconductor chip fabrication plant doubles every four years.[1] As of 2015, the price had reached about 14 billion US dollars.[2]

Rock's law can be seen as the economic flip side to Moore's (first) law – that the number of transistors in a dense integrated circuit doubles every two years. The latter is a direct consequence of the ongoing growth of the capital-intensive semiconductor industry— innovative and popular products mean more profits, meaning more capital available to invest in ever higher levels of large-scale integration, which in turn leads to the creation of even more innovative products.[citation needed]

The semiconductor industry has always been extremely capital-intensive, with ever-dropping manufacturing unit costs. Thus, the ultimate limits to growth of the industry will constrain the maximum amount of capital that can be invested in new products; at some point, Rock's Law will collide with Moore's Law.[3][4][5]

It has been suggested that fabrication plant costs have not increased as quickly as predicted by Rock's law – indeed plateauing in the late 1990s[6] – and also that the fabrication plant cost per transistor (which has shown a pronounced downward trend[6]) may be more relevant as a constraint on Moore's Law.

See also

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References

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  1. ^ "FAQs". India Electronics & Semiconductor Association. Archived from the original on 2017-11-20. Retrieved 2013-04-09.
  2. ^ Armasu, Lucian (8 May 2015). "Samsung's New $14 Billion Chip Plant To Manufacture DRAM, Processors In 2017". Tom's Hardware. Reuters.
  3. ^ Dorsch, Jeff. "Does Moore's Law Still Hold Up?" (PDF). Edavision.com. Archived from the original on 6 May 2006.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  4. ^ Schaller, Bob (1996). "The Origin, Nature, and Implications of 'Moore's Law'". Research.Microsoft.com. Archived from the original on 13 November 2008.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
  5. ^ Tremblay, Jean-François (26 June 2006). "Riding On Flat Panels". Chemical & Engineering News. 84 (26): 13–16. doi:10.1021/cen-v084n026.p013.
  6. ^ a b Ross, Philip E. (2003). "5 Commandments: The rules engineers live by weren't always set in stone". IEEE Spectrum.
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