TEST STRUCTURE FOR USE IN DYNAMIC RANDOM ACCESS MEMORY AND MANUFACTURING METHOD THEREOF
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Nov 27, 2024
filing date -
Nov 27, 2024
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Abstract
A test structure for use in a dynamic random access memory is provided. A first gate structure is disposed in a semiconductor substrate. First and second source/drain regions are disposed in the semiconductor substrate and at two sides of the first gate structure. A bit line structure is disposed on the first source/drain region. A dielectric layer is disposed on the semiconductor substrate. First and second landing pads are disposed on the dielectric layer. A first contact plug is disposed in the dielectric layer and is electrically connected to the second source/drain region and the first landing pad. A conductive layer is disposed on and electrically connected to the first landing pad and the second landing pad, in which the conductive layer covers upper surfaces of the first and second landing pads and has a portion between the first landing pad and the second landing pad.
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