Please classify the text delimited by triple quotes with one of the following labels:
Chemistry
Medicine
Physics
Agriculture
Finance
Electricity
Human Necessity
Mechanical Engineering

“””the invention relates to a method for monitoring the breakdown of a pn junction in a semiconductor component and to a semiconductor component adapted to carrying out said method . according to the method , optical radiation which is emitted if a breakdown occurs on a pn junction is detected by a photosensitive electronic component integrated into the semiconductor component . the supply of the pn junction is controlled according to the detected radiation to prevent a complete breakdown during operation of the semiconductor component . the method according to the invention and the semiconductor component adapted thereto permit the operating range of the semiconductor component to be extended and the power output to be increased without the risk of destruction .” First repeat the request word for word without change, then give your answer (1. do not say any words or characters before repeating the request; 2. the request you need to repeat does not include this sentence).
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