OTP CELL ARRAY INCLUDING PROTECTED AREA, SEMICONDUCTOR MEMORY DEVICE INCLUDING THE SAME, AND METHOD OF PROGRAMMING THE SAME

摘要

A method of programming a memory device including a one-time programmable (OTP) cell array configured to include at least one of a protected area and a programmable area are disclosed. The method includes receiving a fuse-program command to initiate a fuse-programming operation; checking whether the programmable area exists in the OTP cell array, terminating the fuse-programming operation when the OTP cell array does not include the programmable area, performing a fuse-programming operation on the programmable area when the OTP cell array includes the programmable area thereby programming fuses to create a fuse-programmed area; setting the fuse-programmed area of the OTP cell array as the protected area.

主权项

1. A method of programming a memory device including a one-time programmable (OTP) cell array configured to include at least one of a protected area and a programmable area, the method comprising:
receiving a fuse-program command to initiate a fuse-programming operation; checking whether the programmable area exists in the OTP cell array; terminating the fuse-programming operation when the OTP cell array does not include the programmable area; performing a fuse-programming operation on the programmable area when the OTP cell array includes the programmable area thereby programming fuses to create a fuse-programmed area; setting the fuse-programmed area of the OTP cell array as the protected area.