摘要:
A non-volatile memory including at least a substrate, a memory cell and source/drain regions is provided. The memory cell is disposed on the substrate and includes at least a first memory unit and a second memory unit. Wherein, the first memory unit, from the substrate up, includes a floating gate and a first control gate. The second memory unit is disposed on a sidewall of the first memory unit and includes a charge trapping layer and a second control gate. The two source/drain regions are disposed in the substrate at both sides of the memory cell.
摘要:
A flash memory cell is provided. A deep well is disposed in a substrate and a well is disposed within the deep well. A stacked gate structure is disposed on the substrate. A source region and a drain region are disposed in the substrate on each side of the stacked gate structure. A select gate is disposed between the stacked gate structure and the source region. A first gate dielectric layer is disposed between the select gate and the stacked gate structure. A second gate dielectric layer is disposed between the select gate and the substrate. A shallow doped region is disposed in the substrate under the stacked gate structure and the select gate. A deep doped region is disposed in the substrate on one side of the stacked gate structure. The conductive plug on the substrate extends through the drain region and the deep doped region.
摘要:
A low voltage single-poly flash memory cell includes a first ion well of a first conductivity type, a second ion well of a second conductivity type formed on the first ion well, a charge storage layer comprising a first insulating layer, a trapping layer, and a second insulating layer, located on the second ion well, a gate located on the charge storage layer, a sourceand a drain of the second conductivity type located in two sides of the charge storage layer, and an ion doped region of the first conductivity type formed in the second ion well and under and surrounding the source and at least a portion of a bottom of the first insulating layer.
摘要:
A non-volatile memory includes a substrate, a memory unit array, (N+1) bit lines, M word lines, M first control gate lines, and M second control gate lines. The memory unit array includes N memory unit columns, and each memory unit column includes M memory units. The (N+1) bit lines are disposed on the substrate and arranged in parallel in the column direction, and the (N+1) bit lines are corresponding to the N memory unit columns. The M word lines are disposed on the substrate and arranged in parallel in the row direction. The M first control gate lines are arranged on the substrate in parallel in the row direction and respectively connected to the first memory cell in the same row. The M second control gate lines are arranged on the substrate in parallel in the row direction and respectively connected to the second memory cell in the same row.
摘要:
A flash memory cell is provided. A deep well is disposed in a substrate and a well is disposed within the deep well. A stacked gate structure is disposed on the substrate. A source region and a drain region are disposed in the substrate on each side of the stacked gate structure. A select gate is disposed between the stacked gate structure and the source region. A first gate dielectric layer is disposed between the select gate and the stacked gate structure. A second gate dielectric layer is disposed between the select gate and the substrate. A shallow doped region is disposed in the substrate under the stacked gate structure and the select gate. A deep doped region is disposed in the substrate on one side of the stacked gate structure. The conductive plug on the substrate extends through the drain region and the deep doped region.
摘要:
The present invention provides a method of operating a one-time programmable read only memory (OTPROM). The OTPROM includes at least a select transistor, an electrode and a dielectric layer disposed on a substrate, wherein the electrode is set up on the source region of the select transistor and the dielectric layer is set up between the electrode and the source region. The method of operating the one-time programmable read only memory includes performing a programming operation to write a digital data value of ‘1’ into the memory and performing a programming operation to write a digital data value of ‘0’ into the memory.
摘要:
A flash memory cell is provided. A deep well is disposed in a substrate and a well is disposed within the deep well. A stacked gate structure is disposed on the substrate. A source region and a drain region are disposed in the substrate on each side of the stacked gate structure. A select gate is disposed between the stacked gate structure and the source region. A first gate dielectric layer is disposed between the select gate and the stacked gate structure. A second gate dielectric layer is disposed between the select gate and the substrate. A shallow doped region is disposed in the substrate under the stacked gate structure and the select gate. A deep doped region is disposed in the substrate on one side of the stacked gate structure. The conductive plug on the substrate extends through the drain region and the deep doped region.
摘要:
A non-volatile memory is provided. A substrate has at least two isolation structures therein to define an active area. A well is located in the substrate. A shallow doped region is located in the well. At least two stacked gate structures are located on the substrate. Pocket doped regions are located in the substrate at the peripheries of the stacked gate structures; each of the pocket doped regions extends under the stacked gate structure. Drain regions are located in the pocket doped regions at the peripheries of the stacked gate structures. An auxiliary gate layer is located on the substrate between the stacked gate structures. A gate dielectric layer is located between the auxiliary gate layer and the substrate and between the auxiliary gate layer and the stacked gate structure. Plugs are located on the substrate and extended to connect with the pocket doped region and the drain regions therein.
摘要:
A non-volatile memory device having a substrate, an n type well, a p type well, a control gate, a composite dielectric layer, a source region and a drain region is provided. A trench is formed in the substrate. The n type well is formed in the substrate. The p type well is formed in the substrate above the n type well. The junction of p type well and the n type well is higher than the bottom of the trench. The control gate which protruding the surface of substrate is formed on the sidewalls of the trench. The composite dielectric layer is formed between the control gate and the substrate. The composite dielectric layer includes a charge-trapping layer. The source region and the drain region are formed in the substrate of the bottom of the trench respectively next to the sides of the control gate.
摘要:
A programmable and erasable digital switch device is provided. An N-type memory transistor and a P-type memory transistor are formed over a substrate. The N-type memory transistor includes a first N-type doped region, a second N-type doped region, a first charge storage layer and a first control gate. The P-type memory transistor includes a first P-type doped region, a second P-type doped region, a second charge storage layer and a second control gate. A common bit line doped region is formed between the N-type memory transistor and the P type memory transistor and electrically connects the first N-type region to the second P-type doped region. A word line electrically connects the first control gate to the second control gate.