Electrically-programmable low-impedance anti-fuse element

Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics

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257 50, 257607, H01L 2946, H01L 2986, H01L 2992

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active

054122449

ABSTRACT:
Electrically-programmable low-impedance antifuses are disclosed having capacitor-like structure with very low leakage before programming and a low resistance after programming. The antifuses of the present invention include a first conductive electrode which may be formed as a diffusion region in a semiconductor substrate or may be formed from a semiconductor material, such as polysilicon, located above and insulated from the substrate. A dielectric layer is disposed over the first electrode. A second electrode is formed over the dielectric layer from a semiconductor material such as polysilicon, or metal having a barrier metal underneath. At least one of the two electrodes of each antifuse is highly-doped or implanted with arsenic such that high concentrations of arsenic exist at the interface between the electrode and the dielectric layer.

REFERENCES:
patent: 2784389 (1957-03-01), Kelly
patent: 3423646 (1969-01-01), Cubert et al.
patent: 3576549 (1971-04-01), Hess et al.
patent: 3634929 (1972-01-01), Yoshida et al.
patent: 3742592 (1973-07-01), Rizzi et al.
patent: 3781977 (1974-01-01), Hulmes
patent: 3787822 (1974-01-01), Rioult
patent: 3838442 (1974-09-01), Humphreys
patent: 4127900 (1978-11-01), Faffel et al.
patent: 4257832 (1981-03-01), Schwabe et al.
patent: 4322822 (1982-03-01), McPherson
patent: 4398335 (1983-08-01), Lehrer
patent: 4445134 (1984-04-01), Miller
patent: 4455568 (1984-06-01), Shiota
patent: 4488262 (1984-12-01), Basire et al.
patent: 4494135 (1985-01-01), Moussie
patent: 4499557 (1985-02-01), Holmberg et al.
patent: 4505026 (1985-03-01), Bohr et al.
patent: 4507673 (1985-03-01), Aoyama et al.
patent: 4507756 (1985-03-01), McElroy
patent: 4507757 (1985-03-01), McElroy
patent: 4507851 (1985-04-01), Joyner et al.
patent: 4543594 (1985-09-01), Mohsen
patent: 4562639 (1986-01-01), McElroy
patent: 4621277 (1986-11-01), Ito et al.
Smith et al, "Laser Induced Personalization & Alterations of LSI & VSLI Circuits", Nov. 16-17, 1981, Proceedings of the first Intern. Laser Processing Conference.

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