Patent ID: 11910648
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A thin-film transistor substrate comprising:
a substrate;
a semiconductor layer disposed on the substrate and comprising a first conductive region, a second conductive region, and a first semiconductor region between the first conductive region and the second conductive region;
a lower electrode disposed on the semiconductor layer and at least partially overlapping the first semiconductor region; and
an upper electrode disposed on the lower electrode and at least partially overlapping the first semiconductor region,
wherein a first width of the first semiconductor region in a first direction is greater than a second width of the lower electrode in the first direction,
in a plan view, a first boundary between the first semiconductor region and the first conductive region coincides with an edge of the upper electrode,
in the plan view, a second boundary between the first semiconductor region and the second conductive region coincides with an edge of the lower electrode or an edge of the upper electrode,
wherein the first semiconductor region comprises a first channel region that overlaps the lower electrode, and a second channel region that does not overlap the lower electrode but overlaps the upper electrode,
wherein the semiconductor layer comprises a non-crystallization region corresponding to at least a portion of the second channel region,
wherein the semiconductor layer further comprises a crystallization region including the second conductive region, and
wherein the lower electrode and the upper electrode comprise a capacitor.