Manufacturing a solar cell with backside contacts
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United States of America Patent
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May 15, 2007
Grant Date -
Jan 27, 2005
app pub date -
Nov 26, 2002
filing date -
Nov 26, 2001
priority date (Note) -
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Abstract
A solar cell involving a silicon wafer having a basic doping, a light-receiving front side and a backside, which is provided with an interdigital semiconductor pattern, which interdigital semiconductor pattern has a first pattern of at least one first diffusion zone having a first doping and a second pattern of at least one second diffusion zone, separated from the first diffusion zone(s) and having a second doping that differs from the first doping, wherein each second diffusion zone is arranged along the sides of at least one groove extending from the backside into the silicon wafer.
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