Patent ID: 11901425
Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method of forming a non-volatile memory device, comprising:
forming a device well in an active region of a substrate;
forming a coupling well in the active region of the substrate, wherein the coupling well is adjacent to and has a lower dopant concentration than the device well;
forming a source region and a drain region in the active region of the substrate, and the drain region and the source region define a channel region in the device well; and
forming a floating gate over the active region, the floating gate comprises:
a device section over the channel region;
a plurality of coupling sections entirely over the drain region that is over the coupling well; and
a connecting section between the device section and the plurality of coupling sections, wherein the connecting section and the device section are over the device well.