Guiding light

Welcome

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Photomask

I am very sorry; The only thing I wanted is to revert your deletion of the word "vol." from biblio ref. I was careless not to notice that you had other important contribution. mikka (t) 18:29, 27 November 2005 (UTC)

Proximity effect

Thank you for your recent addition to Proximity effect! I created the article (there was a stub about a comic book there before) and so I watch it, but as I'm not a physicist I lack the expertise to bring the article up to par. Your addition is much appreciated. KillerChihuahua 13:19, 3 December 2005 (UTC)

Thanks

Hi. Thank you for your additions to phase-shift mask and the overall nice work you are doing in semiconductors-related articles. I have a question. Do you know where we could get a picture for the photomask article? I added a diagram there, but having also a picture of a real mask could be helpful. (I don't expect that you'll just deliver the picture, just wondering. :) Thanks. Oleg Alexandrov (talk) 14:54, 2 November 2007 (UTC)

Dear Oleg, thanks for your support. I do not have a photomask picture (yet), but if I do get one, I will still need to ask for permission to post. Will be looking...Sincerely, Guiding light 04:25, 6 November 2007 (UTC)

Cool. I cropped the Image:80 nm pitch contact.jpg from phase-shift mask and moved one of its diagrams under the other one (as opposed to the original side-by-side alignment). Hope that's fine with you. Oleg Alexandrov (talk) 04:58, 6 November 2007 (UTC)

(If the image looks odd in the article after my resizing, you may need to do a hard reload to refresh the page.) Oleg Alexandrov (talk) 05:00, 6 November 2007 (UTC)

Multiple patterning

Hi guiding light. I wonder if you could comment on my comment at Talk:Double patterning. Thanks. Oleg Alexandrov (talk) 05:34, 9 March 2008 (UTC)

Image:Resolution vs. DOF.JPG listed for deletion

I noticed that the image Image:Resolution vs. DOF.JPG was blurry because it was stored as JPG. I converted it to PNG, Image:Resolution vs. DOF.png and listed the jpg version for deletion. I hope you don't mind. Boilerplate text follows.

An image or media file that you uploaded or altered, Image:Resolution vs. DOF.JPG, has been listed at Wikipedia:Images and media for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Han-Kwang (t) 08:31, 4 July 2008 (UTC)

It seems that you take this conversion/deletion a bit personally; If I had known, I would have discussed it with you beforehand. If you want, I can try to retract my IfD proposal.

One reason for changing to PNG is that compression artifacts are especially noticeable in Wikipedia's thumbnails because of the low JPEG quality setting used there. I thought it'd be more useful to fix the problem rather than slapping a {{badJPEG}} on the image. WP:PIFU gives some advice how to reduce the image file size. You mentioned that JPEG is smaller than PNG. However, Image:Resolution vs. DOF.JPG was 28 kB, while Image:Resolution vs. DOF.png (the version I uploaded originally) was 19 kB. I didn't even convert it to indexed mode rather than truecolor, which reduces the size to just 6 kB (16 colors), as does your new PNG version. Han-Kwang (t) 15:35, 6 July 2008 (UTC)

Thanks for the information. I had not done a thorough comparison before, but after viewing the link you had earlier, it makes more sense. The resolution vs DOF had to be updated for content anyway; following your suggestion, I used PNG format this time.Guiding light (talk) 01:14, 7 July 2008 (UTC)

Resolution vs. DOF image

Hi Guiding light. Thank you for making Image:Resolution vs. DOF.png prettier than before. I have a couple of suggestions, for future uploads, if you don't mind. First, it is good to crop the whitespace around the borders as much as possible, not for reason of making the picture smaller, but because pictures usually show up as thumbnails, and then a picture with less empty space around it can show up a bit bigger and clearer. Second, if possible, pictures of a bit higher resolution are preferred. In this picture the text appears kind of pixelated.

Lastly, I read your comment here. I do agree PNG is a higher quality format. I think we should select for that, rather than for which picture takes less space. A PNG picture of a few hundreds pixels is very small in size anyway. Oleg Alexandrov (talk) 03:08, 12 July 2008 (UTC)

Okay, no problem, thanks for the suggestions.Guiding light (talk) 12:33, 20 July 2008 (UTC)

Speedy deletion nomination of File:Jumping to NGL.PNG

A tag has been placed on File:Jumping to NGL.PNG requesting that it be speedily deleted from Wikipedia. This has been done under section F1 of the criteria for speedy deletion, because the image is an unused redundant copy (all pixels the same or scaled down) of an image in the same file format, which is on Wikipedia (not on Commons), and all inward links have been updated.

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File:Jumping several nodes.PNG listed for deletion

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E-beam lithography write time?

Hi, was wondering if you would happen to know what the source of the equation for electron beam lithography write time on the page would be. Is there a book? A paper? I've been trying to trace it and can't seem to find it. Thanks a lot! Shaztaz (talk) 17:25, 28 June 2010 (UTC)

It is given in many places, but some sources have been removed. Here is one I found still available online: http://usstepper.com/IDI-SPIE%20paper.pdf I will also put the reference in the article. ThanksGuiding light (talk) 13:25, 7 July 2010 (UTC)

Thanks, appreciate it. Shaztaz (talk) 22:34, 15 July 2010 (UTC)

16 nm "design rule?"

Sorry, but there's an edit you made to the 16 nanometer article that I've been curious about since the first time I saw it. What does it mean when you say "the design rule" for 16 nm is 30 nm? What design rule exactly? If you could clarify this for those of us not conversant in industry jargon, that would be awesome. 146.6.208.13 (talk) 15:47, 26 April 2011 (UTC)

It should mean the half pitch for that referenced statement. I can change it to say that, if that is clear enough. Guiding light (talk) 23:25, 25 May 2011 (UTC)

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File:K1 vs node.PNG listed for deletion

A file that you uploaded or altered, File:K1 vs node.PNG, has been listed at Wikipedia:Files for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Calliopejen1 (talk) 19:01, 7 April 2012 (UTC)

11 nanometer, erroneous ref

J. Word et al., Proc. SPIE 6925 (2008)., which you added in June 2009, looks incorrect. For one thing there is no paper by Word in Proc. SPIE 6925. Could you please have a look at it? --bender235 (talk) 23:15, 18 June 2012 (UTC)

• • I will double check the reference. Sorry for the trouble.Guiding light (talk) 13:18, 19 June 2012 (UTC)

16->14nm, 11->10 etc

Is there a reason you are moving these pages? The table and articles were following nodes that were specified by the International Technology Roadmap for Semiconductors as seen in this table on the left. Unless ITRS has updated their vision, you will need to undo your changes. 14->10->7->5nm is Intel's current roadmap, which is NOT what these tables and articles are defined by. Other fabs will be sticking with plans originally made by ITRS or their own. Colinstu (talk) 09:56, 1 July 2012 (UTC)

Help, please :)

Hello Guiding light! You uploaded this image on commons. Could you please add the appropriate categories or let me know what the diagram is all about? :-) Thanks a bunch! --Hedwig in Washington ^(TALK) 23:24, 6 August 2012 (UTC)

Vectorised image

Hi Guiding light, I vectorised your image Commons:File:EUV photoelectrons and secondaries.jpeg at Commons:File:EUV photoelectrons and secondaries (vector).svg. I hope you like it! — Preceding unsigned comment added by 2pem (talk • contribs) 14:12, 14 January 2014 (UTC)

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Re-organized page

Removed material dated before 2013. Also the "Unexpected Resolution Limits" section was split and separated into different sections, relating to resist, secondary electrons, EUV optics and throughput. If there is any deleted material you like put back, please let me know, thanks.Guiding light (talk) 08:03, 18 August 2014 (UTC)

Speedy deletion nomination of File:Increasing litho steps for advanced nodes.png

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Orphaned non-free image File:EUV Multilayer telecentricity.png

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File:EUV 3s shot noise.png

Can you check the update I made here, wasn't sure where the root symbol was. Can you check?

BTW you can use TeX math for equations. see Help:Formula Sfan00 IMG (talk) 08:54, 23 September 2015 (UTC)

• Thanks for your help. I directly inserted the sqrt sign.Guiding light (talk) 13:58, 23 September 2015 (UTC)

Thanks - I was trying to determine if you meant ${\frac {3{\sqrt {n}}}{n}}$ Sfan00 IMG (talk) 08:57, 24 September 2015 (UTC)

• Yes, that is the formula. If you like you can insert it, as you wish. ThanksGuiding light (talk) 13:27, 24 September 2015 (UTC)

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• Thanks I changed the link which specifies which SMIC. Guiding light (talk) 23:26, 20 October 2015 (UTC)

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Multiple patterning image

Hi can you convert the image you created in the lead into a wikitable? This makes the text much more accessible in general and especially for screen readers. Additionally the text will wrap properly for those with smaller screens. I've taken the liberty to transcribe most of it for you in case you don't know the syntax; all that's missing is the references:

Caption here

Minimum Exposures	Metal Half-pitch	Node	References
193i 193i+193i	45 nm	32/28/22 nm
193i+193i	32 nm	20/16/14 nm
193i+193i	24 nm	10 nm
193i+193i 193i+193i+193i 193i+EUV	16 nm	7 nm
193i+193i+193i 193i+193i+193i+193i 193i+EUV+EUV EUV+EUV+EUV	11 nm	5 nm

Thanks! Opencooper (talk) 14:10, 12 February 2016 (UTC)

References

• Thanks so much for your help. Yes I used this approach because I didn't know the syntax for including the references and caption. Let me see if I can get it this time.Guiding light (talk) 08:03, 14 February 2016 (UTC)

You're welcome! I've added the syntax for a caption as well. Opencooper (talk) 09:11, 14 February 2016 (UTC)

Next-gen lithography

I'm trying to catch up on current lithography - the last time was 10 years ago - so I'm reading over the next-gen article. Unfortunately it contains a considerable amount of unexplained terminology, like 193i. Would you mind taking a once-over and seeing if some of those could be expanded inline? Thanks! Maury Markowitz (talk) 00:33, 23 April 2016 (UTC)

• ok Guiding light (talk) 04:12, 24 April 2016 (UTC)

File permission problem with File:EUV cross-slit effect.png

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• The source is marked as "Public" in the upper right hand corner. This is intended for public consumption.Guiding light (talk) 05:41, 25 November 2018 (UTC)

• Image is replaced with own.Guiding light (talk) 06:32, 25 November 2018 (UTC)

File:Stochastic failure (missing hole).png listed for discussion

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Thanks for letting me know, sorry for the inconvenience.Guiding light (talk) 11:44, 18 December 2021 (UTC)

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