摘要:
A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.
摘要:
A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.
摘要:
A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.
摘要:
A structure and a method for fabrication of the structure use a capacitor trench for a trench capacitor and a resistor trench for a trench resistor. The structure is typically a semiconductor structure. In a first instance, the capacitor trench has a linewidth dimension narrower than the resistor trench. The trench linewidth difference provides an efficient method for fabricating the trench capacitor and the trench resistor. In a second instance, the trench resistor comprises a conductor material at a periphery of the resistor trench and a resistor material at a central portion of the resistor trench.
摘要:
Schottky barrier diodes, methods for fabricating Schottky barrier diodes, and design structures for a Schottky barrier diode. A guard ring for a Schottky barrier diode is formed with a selective epitaxial growth process. The guard ring for the Schottky barrier diode and an extrinsic base of a vertical bipolar junction diode on a different device region than the Schottky barrier diode may be concurrently formed using the same selective epitaxial growth process.
摘要:
Disclosed are embodiments of a junction field effect transistor (JFET) structure with one or more P-type silicon germanium (SiGe) or silicon germanium carbide (SiGeC) gates (i.e., a SiGe or SiGeC based heterojunction JFET). The P-type SiGe or SiGeC gate(s) allow for a lower pinch off voltage (i.e., lower Voff) without increasing the on resistance (Ron). Specifically, SiGe or SiGeC material in a P-type gate limits P-type dopant out diffusion and, thereby ensures that the P-type gate-to-N-type channel region junction is more clearly defined (i.e., abrupt as opposed to graded). By clearly defining this junction, the depletion layer in the N-type channel region is extended. Extending the depletion layer in turn allows for a faster pinch off (i.e., requires lower Voff). P-type SiGe or SiGeC gate(s) can be incorporated into conventional lateral JFET structures and/or vertical JFET structures. Also disclosed herein are embodiments of a method of forming such a JFET structure.
摘要:
A method of preventing blooming in a pixel array includes affecting an amount of light that impinges on a photoelectric conversion element by adjusting a transmissivity of an electrochromic element based on an output of the photoelectric conversion element.
摘要:
Disclosed are embodiments of a Schottky barrier diode. This diode can be formed in a semiconductor substrate having a doped region with a first conductivity type. A trench isolation structure can laterally surround a section of the doped region at the top surface of the substrate. A semiconductor layer can be positioned on the top surface of the substrate. This semiconductor layer can have a Schottky barrier portion over the defined section of the doped region and a guardring portion over the trench isolation structure laterally surrounding the Schottky barrier portion. The Schottky barrier portion can have the first conductivity type and the guarding portion can have a second conductivity type different from the first conductivity type. A metal silicide layer can overlie the semiconductor layer. Also disclosed are embodiments of a method of forming this Schottky barrier diode and of a design structure for the Schottky barrier diode.
摘要:
A semiconductor device is disclosed. The semiconductor device includes a semiconductor substrate including a first source drain region, a second source drain region, and an intrinsic region therebetween; an asymmetric lightly doped drain (LDD) region within the substrate, wherein the asymmetric LDD region extends from the first source drain region into the intrinsic region between the first source drain region and the second source drain region; and a gate positioned atop the semiconductor substrate, wherein an outer edge of the gate overlaps the second source drain region. A related method and design structure are also disclosed.
摘要:
An asymmetric silicon-on-insulator (SOI) junction field effect transistor (JFET) and a method. The JFET includes a bottom gate on an insulator layer, a channel region on the bottom gate and, on the channel region, source/drain regions and a top gate between the source/drain regions. STIs isolate the source/drain regions from the top gate and a DTI laterally surrounds the JFET to isolate it from other devices. Non-annular well(s) are positioned adjacent to the channel region and bottom gate (e.g., a well having the same conductivity type as the top and bottom gates can be connected to the top gate and can extend down to the insulator layer, forming a gate contact on only a portion of the channel region, and/or another well having the same conductivity type as the channel and source/drain regions can extend from the source region to the insulator layer, forming a source-to-channel strap).