Bipolar IC Manufacturing Process

john June 30, 2010 No Comments
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 of the water if appropriate patterns are provided. We shall show...
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MESFET

john June 13, 2010 1 Comment
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 region (a Schottky diode). The device operates in essentially the same...
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Epitaxial Devices – Characteristics

john June 11, 2010 No Comments
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 can be considered to be a parallel-plate capacitor with the depletion...
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Metallization Process

john June 10, 2010 No Comments
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 processing sequence. Metallization is the process by which the components of...
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Ion Implantation

john June 2, 2010 5 Comments
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 a deposition diffusion and is used to produce a shallow surface...
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Electron-Beam Lithography

john May 31, 2010 No Comments
To know more about lithographic process and it’s basic types, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES TAKE A LOOK : PHOTOLITHOGRAPHY Electron-beam lithography provides better resolution then photolithography. This is possible because of...
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X-Ray Lithography

john October 2, 2011 1 Comment
To know more about lithographic process and it’s basic types, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES TAKE A LOOK : PHOTOLITHOGRAPHY The photolithography has its resolution limited by diffraction effects. To improve the...
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Ion-Beam Lithography

john May 31, 2010 No Comments
To know more about lithographic process and it’s basic types, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES TAKE A LOOK : PHOTOLITHOGRAPHY Ion-Beam Lithography Ion-beam lithography, when used to expose resist, provides higher resolution...
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Photolithography

john May 31, 2010 No Comments
To know more about the basics, click on the link below. TAKE A LOOK : IC FABRICATION TECHNIQUES When a sample of crystalline silicon is covered with silicon dioxide, the oxide-layer acts as a barrier to the diffusion of...
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