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	<title>Durofy &#187; doped semiconductors</title>
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		<title>Extrinsic Semiconductors &amp; the Doping process</title>
		<link>http://zarrata.com/durofy/electronics-2/extrinsic-semiconductors-the-doping-process/</link>
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		<pubDate>Sat, 22 Aug 2009 15:27:06 +0000</pubDate>
		<dc:creator>Rishabh Dev</dc:creator>
				<category><![CDATA[Analog]]></category>
		<category><![CDATA[Electronics]]></category>
		<category><![CDATA[doped semiconductors]]></category>
		<category><![CDATA[doping]]></category>
		<category><![CDATA[extrinsic semiconductors]]></category>
		<category><![CDATA[n type]]></category>
		<category><![CDATA[p type]]></category>
		<category><![CDATA[pn junctions]]></category>

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		<description><![CDATA[We looked at pure or intrinsic semiconductors in the previous post on Analog Electronics.
We can however, change the electrical properties of the pure semiconductors by adding certain impurities to their structure, a process called doping.
When doping semiconductors of groups 3 &#38; 4, these impurities are usually elements of group 3(acceptors) or 5(donors).

This gives rise to [...]]]></description>
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