摘要:
Provision of a body control contact adjacent a transistor and between the transistor and a contact to the substrate or well in which the transistor is formed allows connection and disconnection of the substrate of the transistor to and from a zero (ground) or substantially arbitrary low voltage in accordance with control signals applied to the gate of the transistor to cause the transistor to exhibit a variable threshold which maintains good performance at low supply voltages and reduces power consumption/dissipation which is particularly advantageous in portable electronic devices. Floating body effects (when the transistor substrate in disconnected from a voltage source in the “on” state) are avoided since the substrate is discharged when the transistor is switched to the “off” state. The transistor configuration can be employed with both n-type and p-type transistors which may be in complementary pairs.
摘要:
A structure and method are provided for a conductor line stack of an integrated circuit. The conductor line stack includes a layer of a first material such as heavily doped polysilicon or a metal silicide. A layer of a second material such as a metal is formed over the layer of first material, the layer of second material having an upper portion and a lower portion. A pair of first spacers is disposed on sidewalls of the upper portion, wherein the lower portion has width defined by a combined width of the upper portion and the pair of first spacers. A pair of second spacers is formed on sidewalls of the first spacers, the lower portion and the layer of first material. The conductor line stack structure is well adapted for formation of a borderless bitline contact in contact therewith.
摘要:
A semiconductor package may include a substrate, and a semiconductor interposer having a cavity and a plurality of through semiconductor vias. The semiconductor interposer is situated over the substrate. An intra-interposer die is disposed within the cavity of the semiconductor interposer. A thermally conductive adhesive is disposed within the cavity and contacts the intra-interposer die. Additionally, a top die is situated over the semiconductor interposer. In one implementation, the semiconductor interposer is a silicon interposer. In another implementation, the semiconductor interposer is flip-chip mounted to the substrate such that the intra-interposer die disposed within the cavity faces the substrate. In yet another implementation, the cavity in the semiconductor interposer may extend from a top surface of the semiconductor interposer to a bottom surface of the semiconductor interposer and a thermal interface material may be disposed between the intra-interposer die and the substrate.
摘要:
According to one exemplary embodiment, a method for concurrently fabricating a memory region with a logic region in a common substrate includes forming a lower dielectric segment in the common substrate in the memory and logic regions. The method also includes forming a polysilicon segment over the lower dielectric segment in the memory region, while concurrently forming a sacrificial polysilicon segment over the lower dielectric segment in the logic region. Furthermore, the method includes removing from the logic region the lower dielectric segment and the sacrificial polysilicon segment. The method additionally includes forming a high-k segment in the logic region over the common substrate, and in the memory region over the polysilicon segment and forming a metal segment over the high-k segment in the logic and memory regions. An exemplary structure achieved by the described exemplary method is also disclosed.
摘要:
According to an exemplary embodiment, a method for fabricating a MOS transistor, such as an LDMOS transistor, includes forming a self-aligned lightly doped region in a first well underlying a first sidewall of a gate. The method further includes forming a self-aligned extension region under a second sidewall of the gate, where the self-aligned extension region extends into the first well from a second well. The method further includes forming a drain region spaced apart from the second sidewall of the gate. The method further includes forming a source region in the self-aligned lightly doped region and the first well. The self-aligned lightly doped region and the self-aligned extension region define a channel length of the MOS transistor, such as an LDMOS transistor.
摘要:
An eFuse structure having a first metal layer serving as a fuse with a gate including an undoped polysilicon (poly), a second metal layer and a high-K dielectric layer all formed on a silicon substrate with a Shallow Trench Isolation formation, and a process of fabricating same are provided. The eFuse structure enables use of low amounts of current to blow a fuse thus allowing the use of a smaller MOSFET.
摘要:
According to one exemplary embodiment, a method for fabricating a flash memory cell in a semiconductor die includes forming a control gate stack overlying a floating gate stack in a memory region of a substrate, where the floating gate stack includes a floating gate overlying a portion of a dielectric one layer. The floating gate includes a portion of a metal one layer and the dielectric one layer includes a first high-k dielectric material. The control gate stack can include a control gate including a portion of a metal two layer, where the metal one layer can include a different metal than the metal two layer.
摘要:
An integrated circuit structure comprises at least one pair of complementary transistors on a substrate. The pair of complementary transistors includes a first transistor and a second transistor. In addition, only one stress-producing layer is on the first transistor and the second transistor and applies tensile strain force on the first transistor and the second transistor. The first transistor has a first channel region, a gate insulator on the first channel region, and a deuterium region between the first channel region and the gate insulator. The second transistor has a germanium doped channel region, as well as the same gate insulator on the germanium doped channel region, and the same deuterium region between the germanium doped channel region and the gate insulator.
摘要:
The present invention relates to a heterojunction tunneling effect transistor (TFET), which comprises spaced apart source and drain regions with a channel region located therebetween and a gate stack located over the channel region. The drain region comprises a first semiconductor material and is doped with a first dopant species of a first conductivity type. The source region comprises a second, different semiconductor material and is doped with a second dopant species of a second, different conductivity type. The gate stack comprises at least a gate dielectric and a gate conductor. When the heterojunction TFET is an n-channel TFET, the drain region comprises n-doped silicon, while the source region comprises p-doped silicon germanium. When the heterojunction TFET is a p-channel TPET, the drain region comprises p-doped silicon, while the source region comprises n-doped SiC.
摘要:
According to one exemplary embodiment, a fin-based adjustable resistor includes a fin channel of a first conductivity type, and a gate surrounding the fin channel. The fin-based adjustable resistor also includes first and second terminals of the first conductivity type being contiguous with the fin channel, and being situated on opposite sides of the fin channel. The fin channel is lower doped relative to the first and second terminals. The resistance of the fin channel between the first and second terminals is adjusted by varying a voltage applied to the gate so as to achieve the fin-based adjustable resistor. The gate can be on at least two sides of the fin channel. Upon application of a depletion voltage, the fin channel can be depleted before an inversion is formed in the fin channel.