Title :
A 4 kb Metal-Fuse OTP-ROM Macro Featuring a 2 V Programmable 1.37
m
Author :
Kulkarni, Sarvesh H. ; Chen, Zhanping ; He, Jun ; Jiang, Lei ; Pedersen, M. Brian ; Zhang, Kevin
Author_Institution :
Intel Corp., Hillsboro, OR, USA
fDate :
4/1/2010 12:00:00 AM
Abstract :
A 4 kb high-density PROM array featuring the first high-volume manufacturable metal-fuse technology in 32 nm high-k metal-gate CMOS is introduced. In contrast to traditional salicided polysilicon based 2-D fuse cells, the metal-fuse technology enables a 3-D cell topology with program device and fuse element stacked on each other, achieving a 1.37 μm2 cell footprint. The 128-row by 32-column array with an asymmetric tunable static sense scheme can operate down to 0.5 V and provides multi-bit programming capability. Programming success using a 2 V-1 μs pulse condition is demonstrated. The technology is scalable and maintains full compatibility with modern high-k metal-gate processes.
Keywords :
CMOS digital integrated circuits; PROM; network topology; 3-D cell topology; high-density PROM array; metal-fuse OTP-ROM; metal-gate CMOS; one-time-programmable ROM; programmable 1T1R bit cell; size 32 nm; voltage 2 V; CMOS technology; Circuit testing; Fuses; Helium; High K dielectric materials; High-K gate dielectrics; Manufacturing; PROM; Read only memory; Silicides; High-density PROM; metal fuse; one-time-programmable ROM (OTP-ROM);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2010.2040115