Gennum Corporation

James D Kendall

Andrew V Cervin-Lawry

David Kinsey

Petrus T Appelman

Efim Roubakha

Luigi DiPede

Andrew V C Cervin-Lawry

Luigi Di Pede

An EEPROM memory cell comprising a transistor on a first conductivity type semiconductor substrate and a capacitor formed on a second conductivity type semiconductor substrate. The capacitor comprises first and second injector regions of third conductivity type, a channel region of second conductivity type separating the first and second injector regions and a first electrically floating structure disposed above the channel region, wherein a first edge portion of the floating structure overlaps a portion of the first injector region and a second edge portion of the first floating structure overlaps a portion of the second injector region, and a control gate region of fourth conductivity type located within the second conductivity type semiconductor substrate region. The gate structure and first floating structure are electrically connected together. In different aspects of the present invention, the EEPROM memory cell may also include a second capacitor.

Low voltage single poly deep sub-micron flash EEPROM

Low voltage single poly deep sub-micron flash eeprom

An improved antifuse which employs the base-emitter junction of a silicided single polysilicon bipolar transistor. The distance between the base metal and emitter metal is shortened and results from self aligning process steps rather than lithographic steps, resulting in a lower and better controlled programming voltage, programming energy and ON state resistance. Typically the conductive filament formed in the new antifuse is about 0.65 microns long and is formed by a voltage pulse having a relatively slow rise time (e.g. 150 microseconds), resulting in improved properties which provide advantages in circuit design and in manufacturing circuits using the new antifuse.

Antifuse based on silicided polysilicon bipolar transistor

Method of making antifuse based on silicided single polysilicon bipolar

Growing community of inventors

Burlington, Canada

James D Kendall