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The semiconductor chip is divided into two regions that are separated by a P-N Junction. The “P” region is controlled by positive electric charges (Positive Electrons) and the N region is controlled by negative electric charges (Negative Electrons). As shown in the figure above, the adjacent P-type material acquires a small negative charge as a result of gaining electrons. The adjacent N-type material develops a small positive because of its loss of electrons. This space-charge prevents further diffusion across the PN Junction.
PTM Published on: 2011-10-31
