199668 ⎘
Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices comprising cells having several storage transistors connected in series
METHODS AND APPARATUS TO DELETE AND PREVENT RECOVERY OF DATA STORED IN A MEMORY ARRAY
#2MEMORY CIRCUIT AND METHOD OF OPERATING SAME
#3SEMICONDUCTOR MEMORY DEVICES WITH DIFFERENT DOPING TYPES
#4Semiconductor memory devices with different doping types
#5Memory circuit and method of operating same
#6Semiconductor memory devices with different doping types
#7Electronic chip memory
#8Memory circuit and method of operating same
#9Multi-bit read-only memory device
#10Electronic chip memory
#11Memory circuit including a first program device
#12Memory arrays
#13Memory arrays
#14OTP cell having a reduced layout area
#15One-time programming cell
#16One-time programming cell
#17Semiconductor device
#18Method to program bitcells of a ROM array
#19Write voltage generation circuit and memory apparatus
#20NON-VOLATILE MEMORY
#21Memory device, writing method, and reading method
#22Semiconductor memory device
#23Asynchronous sense amplifier for read only memory
#24Logic coding in an integrated circuit
#25Implanted multi-bit NAND ROM
#26Nonvolatile memory structure with high speed high bandwidth and low voltage
#27Multi-layered memory cell structure
#28Nonvolatile memory structure with high speed high bandwidth and low voltage
#29Multi-bit ROM cell with bi-directional read and a method for making thereof