Patent ID: 11908797
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The integrated circuit device of claim 10, further comprising:
a contact plug spaced apart from the bit line in the horizontal direction and connected to an active region of the substrate, the main insulating spacer being interposed between the contact plug and the bit line;
an inner insulating spacer between the upper conductive layer and the extended portion and covering the sidewall of the bit line; and
an outer insulating spacer between the main insulating spacer and the contact plug and covering the sidewall of the bit line,
wherein the main insulating spacer comprises a first sidewall that faces the inner insulating spacer along the extended portion and is convex toward the upper conductive layer, and a second sidewall that faces the outer insulating spacer on an opposite side of the extended portion in the horizontal direction and is linear along the vertical direction.