Patent ID: 11935832
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method of manufacturing a semiconductor device, the method comprising:
preparing a semiconductor substrate comprising a plurality of device regions and a scribe lane region separating the plurality of device regions from each other;
forming a wiring structure on a semiconductor substrate, the wiring structure including a plurality of chip wiring regions respectively on the plurality of device regions and a dummy wiring region on the scribe lane region;
forming first and second isolation trenches in both sides of the dummy wiring region, respectively, to separate the plurality of chip wiring regions from each other, each of the first and second isolation trenches having a width;
forming first and second isolation structures in the first and second isolation trenches, respectively, each of the first and second isolation structures including an insulating material; and,
cutting the semiconductor substrate along the first and second isolation structures to obtain a plurality of semiconductor devices, a cutting width in each of the first and second isolation structures being less than the width of each of the first and second isolation trenches,
wherein each of the plurality of semiconductor devices comprises an insulating material layer on a side surface of each of the chip wiring regions, the insulating material layer comprising the isolation structure remaining after the cutting the semiconductor substrate.