Mills & Onello LLP
Doping mask and methods of manufacturing charge transfer image and microelectronic device using the same
Provided are a doping mask and methods of manufacturing a charge transfer image device and a microelectronic device using the same. The method includes forming a photoresist film on an entire surface of a substrate or sub-substrate having a peripheral circuit region and a pixel region, removing the photoresist film on an upper surface of the substrate intended for the peripheral circuit region and patterning the photoresist film on an upper surface of the substrate intended for the pixel region to form a photoresist pattern having an array of openings with a predetermined pitch, implanting ions at the same concentration level into the entire surface of the substrate using the photoresist pattern as a doping mask, and diffusing the implanted ions by annealing. The pitch is determined so that ions implanted through each opening diffuse toward those implanted through an adjacent one to form wells.
Samsung Electronics Co., Ltd.
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Seok-ha
Lee