PNP bipolar junction transistor fabrication using selective epitaxy
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United States of America Patent
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Dec 30, 2014
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app pub date -
Nov 11, 2011
filing date -
Nov 11, 2011
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Abstract
Lateral PNP bipolar junction transistors, methods for fabricating lateral PNP bipolar junction transistors, and design structures for a lateral PNP bipolar junction transistor. An emitter and a collector of the lateral PNP bipolar junction transistor are comprised of p-type semiconductor material that is formed by a selective epitaxial growth process. The source and drain each directly contact a top surface of a device region used to form the emitter and collector. A base contact may be formed on the top surface and overlies an n-type base defined within the device region. The emitter is laterally separated from the collector by the base contact. Another base contact may be formed in the device region that is separated from the other base contact by the base.
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