Static information storage and retrieval – Floating gate – Particular connection
Patent
1998-12-17
2000-11-21
Phan, Trong
Static information storage and retrieval
Floating gate
Particular connection
257316, G11C 1604
Patent
active
061512451
ABSTRACT:
An EEPROM cell is described as having a screening metal structure formed of preference in the first metal layer and located in substantial overlaying relationship at the floating gate terminal. This defeats the possibility of anomalous readings being obtained by measuring the amount of charge on the floating gate terminal. An additional screening metal structure, to be formed in the third and following metal layers, may be provided to fully overlie the cell and provide additional protection against anomalous readings.
REFERENCES:
patent: 5504706 (1996-04-01), D'Arrigo et al.
patent: 5557569 (1996-09-01), Smayling et al.
patent: 5751038 (1998-05-01), Mukherjee
patent: 5852290 (1998-12-01), Chaney
patent: 5895949 (1999-04-01), Endoh
Lisart Mathieu
Pio Federico
Sourgen Laurent
Zatelli Nicola
Galanthay, Esq. Theodore E.
Iannucci, Esq. Robert
Phan Trong
STMicroelectronics S.A.
STMicroelectronics S.r.l.
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