CUT METAL GATE IN MEMORY MACRO EDGE AND MIDDLE STRAP
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
Jul 23, 2024
filing date -
Jul 23, 2024
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Abstract
A semiconductor device includes a memory macro having a middle strap area between edges of the memory macro and memory bit areas on both sides of the middle strap area. The memory macro includes n-type wells and p-type wells arranged alternately along a first direction with well boundaries between the adjacent n-type and p-type wells. The n-type and the p-type wells extend lengthwise along a second direction and extend continuously through the middle strap area and the memory bit areas. The memory macro includes a first dielectric layer disposed at the well boundaries in the middle strap area and the memory bit areas. From a top view, the first dielectric layer extends along the second direction and fully separates the n-type wells from the p-type wells in the middle strap area. From a cross-sectional view, the first dielectric layer vertically extends into the n-type or the p-type wells.
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