Specific Process Knowledge/Characterization/XPS/Carbon contamination - Revision history

Jmli at 08:35, 4 September 2025

2025-09-04T08:35:28Z

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Jmli at 13:23, 8 May 2023

2023-05-08T13:23:31Z

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	==Carbon Contamination==		==Carbon Contamination==
	~~--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015~~

	An unexpected carbon signal is often found in samples during XPS. The carbon typically originates from sample exposure to the air outside the XPS (e.g. the lab). Measurements of carbon contamination of a sputter cleaned Cu sample due to air exposure indicates that carbon contamination builds up to 20 At. % in approximately one minute.		An unexpected carbon signal is often found in samples during XPS. The carbon typically originates from sample exposure to the air outside the XPS (e.g. the lab). Measurements of carbon contamination of a sputter cleaned Cu sample due to air exposure indicates that carbon contamination builds up to 20 At. % in approximately one minute.

Jmli at 13:23, 2 October 2020

2020-10-02T13:23:19Z

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Jmli at 13:13, 2 October 2020

2020-10-02T13:13:02Z

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	==Carbon Contamination==		==Carbon Contamination==
	--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015		--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015

Jmli: /* Carbon Contamination */

2018-05-16T07:08:22Z

Carbon Contamination

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	==Carbon Contamination==		==Carbon Contamination==
	--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015 ~~(CET)~~		--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015

	An unexpected carbon signal is often found in samples during XPS. The carbon typically originates from sample exposure to the air outside the XPS (e.g. the lab). Measurements of carbon contamination of a sputter cleaned Cu sample due to air exposure indicates that carbon contamination builds up to 20 At. % in approximately one minute.		An unexpected carbon signal is often found in samples during XPS. The carbon typically originates from sample exposure to the air outside the XPS (e.g. the lab). Measurements of carbon contamination of a sputter cleaned Cu sample due to air exposure indicates that carbon contamination builds up to 20 At. % in approximately one minute.

Jmli at 09:36, 27 June 2017

2017-06-27T09:36:28Z

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	==Carbon Contamination==		==Carbon Contamination==
	--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015 (CET)		--[[User:Kare\|kare]] ([[User talk:Kare\|talk]]) 09:29, 18 February 2015 (CET)

Kare: Created page with "==Carbon Contamination== --kare (talk) 09:29, 18 February 2015 (CET) An unexpected carbon signal is often found in samples during XPS. The ca..."

2015-02-25T14:32:55Z

Created page with "==Carbon Contamination== --kare (talk) 09:29, 18 February 2015 (CET) An unexpected carbon signal is often found in samples during XPS. The ca..."

New page

==Carbon Contamination==
--[[User:Kare|kare]] ([[User talk:Kare|talk]]) 09:29, 18 February 2015 (CET)

An unexpected carbon signal is often found in samples during XPS. The carbon typically originates from sample exposure to the air outside the XPS (e.g. the lab). Measurements of carbon contamination of a sputter cleaned Cu sample due to air exposure indicates that carbon contamination builds up to 20 At. % in approximately one minute.

[[File:AirCarbon.jpg]]

Measurements of the At. % of C on the Au-reference in the XPS after an initial sputter clean were conducted for 16 hours every hour. The results show that carbon is detectable after 1-2 hours and gradually builds up at a rate of approximately 0.6 At. percentage points per hour, i.e. much slower than if the sample is exposed to air. Thus carbon contamination on samples in the XPS typically originates from air exposure.

[[File:C-contamination.jpg]]