| http://www.w3.org/ns/prov#value | - evice having pn junction, there has been a known method for reducing the lifetime of small number of carriers by diffusing heavy metals such as gold or platinum, or by irradiating corpuscular rays like electron ray, X-ray, proton, and the like. [0003] The method for diffusing the heavy metals such as gold or platinum on a semiconductor layer has been studied for long, but due to the difficulty of
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