HP Inc. Patent Department
Fluid ejection devices comprising memory cells
In some examples, a fluid ejection device includes a substrate and a memory cell on the substrate, the memory cell including a first dielectric layer, a floating gate, a second dielectric layer, and a control gate. The memory cell includes a channel region between a drain region and a source region. The first dielectric layer is over the channel region and the floating gate is capacitively coupled to the channel region through the first dielectric layer. The floating gate includes a polysilicon layer, a metal layer, and a second dielectric layer between the polysilicon layer and the metal layer, where the second dielectric layer includes an opening through which the polysilicon layer is electrically connected to the metal layer.
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
H H H H H H H H B H H
H01L H01L H01L H01L H01L H01L H01L H01L B41J H01L H01L
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Chaw Sing Reynaldo V. Xin Ping
Ho Villavelez Cao