Talk:Czochralski method

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Units[edit]

Does "concentrations of 10^18cm^-3" mean 10^18 atoms of oxygen per centimetre cubed? It might be useful to explain the units or link to an appropriate page explaining them. Also is one set of units standard or are there several used? (Alexwright 10:47, 29 December 2006 (UTC))[reply]

I wonder about that too! Warut 02:21, 14 November 2007 (UTC)[reply]

Inappropriate tone[edit]

Section "Size of crystals" could be rewritten for more appropriate tone: "...crystal growers have had a lot of practice, and nowadays they can make nice, fat 300 mm (12-inch) wide boules." 'Nowadays,' and 'nice, fat" are not exactly consistent with WP suggested style guidelines. Mtiffany71 (talk) 05:58, 27 February 2010 (UTC)[reply]

misleading illustration[edit]

picture of crucible should show full charge, not just one piece of silicon. — Preceding unsigned comment added by Rwmr (talk • contribs) 23:09, 18 February 2012 (UTC)[reply]

Pronunciation[edit]

For a layman English-speaker, it is hard to know how to pronounce this term. I think the article should include some guidance on the pronunciation of "Czochralski". --Westwind273 (talk) 19:15, 26 March 2013 (UTC)[reply]

No mention of rotation[edit]

Whats the point of rotation of crucible and ingot? Never mentioned. — Preceding unsigned comment added by 65.26.105.141 (talk) 22:03, 28 February 2014 (UTC)[reply]

I believe the purpose of rotation is (at least partially) to ensure radial symmetry of the crystal growth. Specifically, this motion should tend to maintain a circular cross section in the final product. Without it, the crystal would still grow but it would likely not be uniform in appearance.

The rotation may serve other purposes as well, so I'll leave such changes up to an expert who can more confidently provide an answer with sourcing included.

--Rjbranch (talk) 07:55, 19 January 2021 (UTC)[reply]

Concentration of Oxygen in 'Impurity incorporation'[edit]

I guess the stated concentration of oxygen in this section refers to the number of oxygen atoms.cm^-3, and not to the molar concentration the chemist is more familiar with. Leaving alone the number also would be rather high. Although the assumption on atoms.cm^-3 would make sence, the unit is not in the text, and I am not familiar enough with the subject to change on my own autority. Who is, and adds the unit to the number? T.vanschaik (talk) 07:58, 8 July 2014 (UTC)[reply]

Badly written article omits definition[edit]

The writers of this article somehow forgot the most important part: a definition of what the Czochralski process is; how it differs from other crystal growing techniques (pulling of a crystal at a controlled rate from a crucible of molten metal). It is also much too focused on silicon. --Chetvorno^TALK 05:51, 24 October 2016 (UTC)[reply]

Outdated Content RE: 450mm Silicon Wafers[edit]

The "Crystal Sizes" section has a sentence which reads:

The next step up, 450 mm, is currently scheduled for introduction in 2018.

This should be updated to reference the modern state of the industry.

--Rjbranch (talk) 07:39, 19 January 2021 (UTC)[reply]