Invention Grant
US07906816B2 Semiconductor integrated circuit device including memory cells having floating gates and resistor elements 有权
包括具有浮动栅极和电阻元件的存储单元的半导体集成电路器件

Semiconductor integrated circuit device including memory cells having floating gates and resistor elements
Abstract:
A semiconductor integrated circuit device includes an element isolation region which is formed in a semiconductor substrate to isolate an element region of the semiconductor substrate, memory cells having floating gates and formed on the element region, and resistor elements formed on the element region. The floating gate has a laminated structure containing a plurality of conductive films. The resistor element has a contact portion for connection with a wiring and a resistor portion acting as a resistor. The resistor portion has a laminated structure having at least one of the plurality of conductive films and an insulating material having a selective etching ratio with respect to the semiconductor substrate.
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