Gallium Arsenide (GaAs) Fabrication Techniques: This article is used to describe the basic fabrication methods of Gallium Arsenide (GaAs), mainly using LEC Growth process. Various methods are used…
Metal Semi-conductor FET (MESFET) This article briefly describes the structure of MESFET , its comparison with MOSFET, D-MESFET and E-MESFET, circuit symbols, and also the characteristics of Schottky…
Gallium Arsenide (GaAs) Devices In this article, the first and second generation types of Gallium Arsenide (GaAs) devices are explained. During the last few years a number of…
Gallium Arsenide (GaAs) – Electron Velocity-Field Behaviour In this post, the graph between the electron field and the electron velocity is explained. The reason for the decrease in…
Gallium Arsenide (GaAs) – Energy Band Structure In this article, the energy band structure of GaAs is explained with a diagram and also with respect to its comparison…
Gallium Arsenide (GaAs) – Channeling Effect This article explains the channeling effect of Gallium Arsenide (GaAs), and its orientation dependency. The concept of axial channeling is also explained.…
Gallium Arsenide (GaAs) Doping This article briefly explains the compound semiconductor Gallium Arsenide (GaAs) with a figure showing the arrangement of atoms. The Gallium Arsenide (GaAs) doping process,…
In this post, the origin of Gallium and Arsenic, as well as the structure and properties of the Gallium Arsenide (GaAs) crystal is explained in detail. The atomic…
Ultra-fast Systems and GaAs VLSI Technology In this post, we will briefly review some of the limitations of silicon devices and then look at the emerging alternative for…
V-Groove MOS (VMOS) This article explains in detail about the structure of VMOS with diagram, its characteristics, anisotropic etching and also the applications of VMOS. To know the…
Double-Diffused MOS (DMOS) In this article, the Double-Diffused MOS (DMOS) structure is explained with a diagram. The working of Vertical DMOS Transistor is also explained in detail with…
Short Channel MOS Structures This article discusses the different factors that limit the speed of a MOSFET. The common methods to reduce the parasitics like Scaled MOS (SMOS)…
NMOS Fabrication Process In this article the various steps needed for NMOS Fabrication are explained in detail along with diagrams. To know the basic IC Fabrication Techniques, click…
PMOS vs NMOS The advantages of n-channel MOSFET’s over p-channel MOSFET’s and vice versa have been explained in detail. Even the problems that NMOS faces in device processing…
MOSFET Technology and Various MOS Process This article focuses on basics of MOSFET Technology,basics of various MOS process like p-channel MOS (PMOS), n-channel MOS (NMOS), Complimentary MOS (CMOS)…
Dielectric Isolation in Integrated Circuits This article focuses on Dielectric isolation in various Integrated Circuits; especially in the VLSI sector, discusses various methods used for dielectric isolation like…
The figure below shows some IC JFET structures. The n-channel JFET structure of first figure [a] is compatible with the n-p-n transistor fabrication sequence. Another view of this…
Monolithic Planar Diode Configurations We have seen that in the fabrication of an IC the geometry and the doping of the various layers must be chosen to optimize…
Once all components are fabricated on a single crystal wafer, they must be electrically isolated from each other. The problem is not encountered indiscrete circuits, because physically all…
In this post, we shall discuss, the fabrication of a standard, junction- isolated bipolar IC. Of course, many devices can be formed at a time over the surface…
The figure below shows a diagram of gallium arsenide (GaAs) MESFET (metal-semiconductor field-effect transistor). MESFET is nothing but a JFET fabricated in GaAs which employs a metal-semiconductor gate…
Junction Characteristics Before describing the fabrication sequences for ICs, it will be useful to provide insight into the use of epitaxial structures for devices. A reverse-biased p-n junction…
To know about the different IC fabrication techniques, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES Metallization is the final step in the wafer…
To know about the different IC fabrication techniques, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES ION IMPLANTATION Ion Implantation is an alternative to…
To know about the different IC fabrication techniques, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES Diffusion of Dopant Impurities The process of junction…
