Method for programming programmable devices by utilizing single or multiple pulses varying in pulse width and amplitude

摘要: The present invention comprises a method to program programmable structures in integrated circuits, such as read-only memory (PROM), erasable family (EPROMS, EEPROMS, etc.) or option selections/redundancy repair on dynamic random access memories (DRAMs) by utilizing multiple programming pulses that vary pulse width and amplitude. Multiple (or train) of the are applied desired structure be programmed, whether fuse bipolar PROM, an antifuse element CMOS selecting (fuse antifuse) DRAM, gates EPROM (EEPROMs, Flash etc.). train may few one pulse, having sufficient amplitude width, plurality varying width. pulse(s) also ramped up down consists series wherein first have longer than subsequent pulse. By adding these variables train, optimal results can obtained for each structure.