METHOD OF MANUFACTURING A SOLAR CELL
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United States of America Patent
Stats
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N/A
Issued Date -
Nov 22, 2012
app pub date -
Dec 2, 2011
filing date -
May 19, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of manufacturing a solar cell includes preparing a base substrate having a first conductive type; diffusing an impurity having a second conductive type (opposite the first conductive type) into the base substrate to form an emitter layer having a first impurity concentration on the base substrate and a by-product layer on the emitter layer; irradiating a laser beam onto the emitter layer corresponding to a first region of the base substrate to form a front contact portion having a second impurity concentration higher than the first impurity concentration; irradiating the laser beam onto the by-product layer to remove the by-product layer corresponding to the first region; removing the by-product layer from an area outside of the first region; forming an anti-reflection layer on the base substrate; forming a front electrode on the anti-reflection layer corresponding to the first region; and forming a back electrode on the base substrate.
First Claim
Other Claims data not available