How to make Semiconductor materials?

Semiconductors are designed and processed on the "wafers". Wafers are mostly made from Si (silicon) for common use, but Ge(germanium), SiC(silicon carbide), GaAs(gallium arsenide), GaN(gallium nitride), InP(indium phospide), etc wafers(a.k.a. compound semiconductors) are also available for special use.








These wafers are made from crystal ingots(Cylindrical "boule"), which are grown by Czochralski, float-zone, or Bridgman methods.

Today, I am going to talk about brief preview of growth of bulk crystals methods.



1. Growth of Bulk Crystals.


These following processes are usually used for Si crystal growth.

• Czochralski process
• Float zone process

Following processes are used for "compound" semiconductor crystal

• Liquid-Encapsulated Czochralski process
• Bridgman process

This is it for today's post. For some of you this is very familiar topic, but for someone this is already too much for one day.

At the next post, I will cover brief previews of each methods and further details for each method will be posted later.

Thanks,

K K

Introduction

First, thanks to come and see my blog.
Sharing knowledge is fun and important. You can find and access any kind of informations and topics easily with internet. But not all information in the web gives you right and updated informations and understandings. Some are misleading the knoledge, and some are too old to be valid any more. Sometimes you can find information but it is too superficial or too deep to understand without basic knowledge on that topics.
From this point, I'd like to give an open on-line materials science and engineering class for everyone, who want to know more details on topics.
I will mostly focus initially on "Introduction of Materials Science and Engineering", and "Electronic properties of materials", and later I will give some "Semicondoctor Processes and Devices" and "Optoelectonic materials" lectures.
I will not pour information to you at once, but I will give you step by step lesson for better understanding.
All the topics are open to discussions and recommendations, please feel free to talk with me.

K K