Patent ID: 11907685
Assignee: GLOBALFOUNDRIES U.S. INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. A structure comprising:
a semiconductor layer;
randomly patterned dopant implant regions in the semiconductor layer;
an array of devices,
wherein the devices comprise corresponding regions of the semiconductor layer and include first devices and second devices different from the first devices,
wherein the corresponding regions of the semiconductor layer of the first devices are devoid of any of the randomly patterned dopant implant regions extending vertically therethrough and the first devices have performance parameter values within a predetermined range,
wherein the corresponding regions of the semiconductor layer of the second devices each have at least a portion with at least one randomly patterned dopant implant region extending vertically therethrough with junctions between the randomly patterned dopant implant regions and the second devices causing the second devices to have performance parameter values outside the predetermined range, and
wherein the first devices and the second devices are randomly distributed across the array; and

a random number generator operably connected to the array of devices and generating a random number based on distribution of the first devices and the second devices within the array.