Memory and formation method thereof
A memory and storage area technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of complex process and low production efficiency, and achieve the effect of simplifying and reducing the process flow
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[0027] As mentioned in the background art, the performance of the prior art memory is poor.
[0028] A memory includes: a substrate, the substrate includes an erase area and a floating gate area, the floating gate area is adjacent to the erase area and located on both sides of the erase area; the erase area is located on the erase area of the substrate In addition to the gate structure; the floating gate structure respectively located on the floating gate area of the substrate; the first side wall, the second side wall and the control gate structure located on the floating gate structure, the second side wall is located in the control On the gate structure, the first sidewall spacer is parallel to the second sidewall spacer and the control gate structure.
[0029] In the formation process of the above-mentioned memory, the formation of the erase gate structure, the control gate structure and the floating gate structure each requires one mask, so at least three patterning proces...
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