摘要:
The present invention discloses a DRAM cell utilizing floating body effect and a manufacturing method thereof. The DRAM cell includes a first N type semiconductor region provided on a buried oxide layer, a P type semiconductor region provided on the first N type semiconductor region, a gate region provided on the P type semiconductor region, and an electrical isolation region surrounding the P type semiconductor region and the N type semiconductor region. A diode is taken as a storage node. Via a tunneling effect between bands, holes gather in the floating body, which is defined as a first storage state; via forward bias of PN junction, holes are emitted out from the floating body or electrons are injected into the floating body, which is defined as a second storage state. The present invention provides a highly efficient DRAM cell utilizing floating body effect with high density, which has low power consumption, has simple manufacturing process, and is compatible to the conventional CMOS and conventional logic circuit manufacturing process.
摘要:
A SOI MOS device for eliminating floating body effects and self-heating effects are disclosed. The device includes a connective layer coupling the active gate channel to the Si substrate. The connective layer provides electrical and thermal passages during device operation, which could eliminate floating body effects and self-heating effects. An example of a MOS device having a SiGe connector between a Si active channel and a Si substrate is disclosed in detail and a manufacturing process is provided.
摘要:
A SOI MOS device for eliminating floating body effects and self-heating effects are disclosed. The device includes a connective layer coupling the active gate channel to the Si substrate. The connective layer provides electrical and thermal passages during device operation, which could eliminate floating body effects and self-heating effects. An example of a MOS device having a SiGe connector between a Si active channel and a Si substrate is disclosed in detail and a manufacturing process is provided.
摘要:
The present invention discloses a DRAM cell utilizing floating body effect and a manufacturing method thereof. The DRAM cell includes a P type semiconductor region provided on a buried oxide layer, an N type semiconductor region provided on the P type semiconductor region, a gate region provided on the N type semiconductor region, and an electrical isolation region surrounding the P type semiconductor region and the N type semiconductor region. A diode of floating body effect is taken as a storage node. Via a tunneling effect between bands, electrons gather in the floating body, which is defined as a first storage state; via forward bias of PN junction, electrons are emitted out from the floating body or holes are injected into the floating body, which is defined as a second storage state. The present invention provides a highly efficient DRAM cell utilizing floating body effect with high density, which has low power consumption, has simple manufacturing process, and is compatible to the conventional CMOS and conventional logic circuit manufacturing process.
摘要:
The present invention discloses a DRAM cell utilizing floating body effect and a manufacturing method thereof. The DRAM cell includes a P type semiconductor region provided on a buried oxide layer, an N type semiconductor region provided on the P type semiconductor region, a gate region provided on the N type semiconductor region, and an electrical isolation region surrounding the P type semiconductor region and the N type semiconductor region. A diode of floating body effect is taken as a storage node. Via a tunneling effect between bands, electrons gather in the floating body, which is defined as a first storage state; via forward bias of PN junction, electrons are emitted out from the floating body or holes are injected into the floating body, which is defined as a second storage state. The present invention provides a highly efficient DRAM cell utilizing floating body effect with high density, which has low power consumption, has simple manufacturing process, and is compatible to the conventional CMOS and conventional logic circuit manufacturing process.
摘要:
A MOS device having low floating charge and low self-heating effects are disclosed. The device includes a connective layer coupling the active gate channel to the Si substrate. The connective layer provides electrical and thermal passages during device operation, which could eliminate floating effects and self-heating effects. An example of a MOS device having a SiGe connector between a Si active channel and a Si substrate is disclosed in detail and a manufacturing process is provided.
摘要:
The present invention discloses a DRAM cell utilizing floating body effect and a manufacturing method thereof. The DRAM cell includes a first N type semiconductor region provided on a buried oxide layer, a P type semiconductor region provided on the first N type semiconductor region, a gate region provided on the P type semiconductor region, and an electrical isolation region surrounding the P type semiconductor region and the N type semiconductor region. A diode is taken as a storage node. Via a tunneling effect between bands, holes gather in the floating body, which is defined as a first storage state; via forward bias of PN junction, holes are emitted out from the floating body or electrons are injected into the floating body, which is defined as a second storage state. The present invention provides a highly efficient DRAM cell utilizing floating body effect with high density, which has low power consumption, has simple manufacturing process, and is compatible to the conventional CMOS and conventional logic circuit manufacturing process.
摘要:
A hybrid orientation accumulation mode GAA (Gate-All-Around) CMOSFET includes a PMOS region having a first channel, an NMOS region having a second channel and a gate region. The first channel and the second channel have a racetrack-shaped cross section and are formed of p-type Si(110) and n-type Si(100), respectively; the surfaces of the first channel and the second channel are substantially surrounded by the gate region; a buried oxide layer is disposed between the PMOS region and the NMOS region and between the PMOS or NMOS region and the Si substrate to isolate them from one another. The device structure according to the prevent invention is quite simple, compact and highly integrated. In an accumulation mode, current flows through the overall racetrack-shaped channel. The disclosed device results in high carrier mobility. Meanwhile polysilicon gate depletion and short channel effects are prevented, and threshold voltage is increased.
摘要:
A Ge and Si hybrid material accumulation mode GAA (Gate-All-Around) CMOSFET includes a PMOS region having a first channel, an NMOS region having a second channel and a gate region. The first channel and the second channel have a racetrack-shaped cross section and are formed of p-type Ge and n-type Si, respectively; the surfaces of the first channel and the second channel are substantially surrounded by the gate region; a buried oxide layer is disposed between the PMOS region and the NMOS region and between the PMOS or NMOS region and the Si substrate to isolate them from one another. In an accumulation mode, current flows through the overall racetrack-shaped channel. The disclosed device has high carrier mobility, high device drive current, and maintains the electrical integrity of the device. Meanwhile, polysilicon gate depletion and short channel effects are prevented.
摘要:
A Ge and Si hybrid material inversion mode GAA (Gate-All-Around) CMOSFET includes a PMOS region having a first channel, an NMOS region having a second channel and a gate region. The first channel and the second channel have a racetrack-shaped cross section and are formed of n-type Ge and p-type Si, respectively; the surfaces of the first channel and the second channel are substantially surrounded by the gate region; a buried oxide layer is disposed between the PMOS region and the NMOS region and between the PMOS or NMOS region and the Si substrate to isolate them from one another. In an inversion mode, the devices have hybrid material, GAA structure with the racetrack-shaped, high-k gate dielectric layer and metal gate, so as to achieve high carrier mobility, prevent polysilicon gate depletion and short channel effects.