Dec 08, 2018 
A Semiconductor can be defined as a material that has the characteristics and ability to conduct a small amount of electrical current. Semiconductors have much lower resistance to the flow of electrical current in one direction than in another. Electronic Components such as Diodes, transistors, and many photovoltaic cells contain semiconductive materials. The electrical conductivity of a semiconductor device can be controlled over a wide range, either permanently or dynamically.
Which Materials are used to make a Semiconductor?
There are several materials that are used to make a semiconductor. The basic requirement of a semiconductor is that it should not be a very good conductor of electricity, nor should it be a very bad conductor of electricity. Its properties can be changed by adding or removing atoms. Siliconis the most widely used semiconductor material. Few other materials used in making semiconductor are germanium, gallium arsenide, and silicon carbide.
How are Semiconductors Made?
Manufacturing semiconductors need expertise and experience. Chemicals to be used need to be pure and free from any impurity. The process of adding controlled impurities to a semiconductor is known as doping. Silicon wafers are an important ingredient in manufacturing semiconductors.
Semiconductor Manufacturing Process:
- Design / Mask Creation: During this phase, the function of the semiconductor / IC is defined, the electric circuit is designed, and a mask for IC manufacturing is created based on the design.
- Patterning: This procedure is used for the formation of a circuit pattern during various front-end processes.
- Wafer Fabrication: During this phase, an IC is created on a silicon substrate (wafer).
- Device Formation / Device Insulation Layer Formation: A device insulation layer (field oxide-film) is formed for electrical isolation of the devices.
- Device Formation / Transistor Formation: Transistors are formed in the active regions to control the flow of electrons.
- Metallization: Devices, such as transistors, are interconnected to form an electronic circuit.
- Assembly and Testing: During this phase, the IC chips created during the wafer fabrication phase are encapsulated into packages, and thoroughly inspected before becoming completed products.
How Semiconductor Works
How Semiconductor Works
All semiconductor materials like silicon, germanium, gallium arsenide, and silicon carbide have a unique property – All of them have 4 electrons in their outermost orbit. All the 4 electrons form perfect covalent bonds with four other atoms creating a lattice to form crystals. These crystals may look like a diamond (if the semiconductor material used is carbon) or it may look like a silver metallic substance (if the semiconductor material used is silicon).
Most semiconductors are made by using silicon since it is abundantly available on earth and is easy to work with. When an “impure” substance, such as boron or gallium is introduced in small quantity, it causes the silicon crystal to become unstable. This instability allows free movement of electrons. Free movement of electrons causes an imbalance of electrons. This imbalance of electrons can generate a charge which can be either a positive charge (if there are lesser electrons) or a negative charge (if there are more electrons).
Conclusion
Silicon is the most widely used semiconductor material. Electrons are negatively charged and protons are positively charged while neutron has no charge. Semiconductors works due to imbalance of electrons that carry negative charge. This imbalance of electrons generates positive (where there are excess protons) and negative charges (where there are excess electrons) at two ends of surfaces of the semiconductor material. This is how a semiconductor works.
Flason Electronic Co.,ltd provide a full smt assembly line solutions, including Lead free reflow oven, wave soldering machine, SMT pick and place machine, smt stencil printer, PCB conveyor manufacturer, PCB unloader, chip mounter, SMT AOI machine, SMT SPI machine, SMT X-Ray machine, SMT assembly line equipment, PCB production Equipment smt spare parts etc any kind SMT machines you may need, please contact us for more information: wechat whatsapp:008613691605420, Skype: flasonsmt, Email: sales@flason-smt.com
FAQ
1) This is the first time I use this kind of machine, is it easy to operate?
There is English manual or guide video that show you how to use machine.
If you still have any question, please contact us by e-mail / skype/ phone /trademanager online service.
2) If machine have any problem after I receive it, how can I do ?
Free parts send to you in machine warranty period.
If the part is less than 0.5KG, we pay the postage.
If it exceeds 0.5KG, you need to pay the postage.
3) MOQ ?
1 set machine, mixed order is also welcomed.
4) How can I buy this machine from you? ( Very easy and flexible !)
A. Consult us about this product on line or by e-mail.
B. Negotiate and confirm the final price , shipping , payment methods and other terms.
C. Send you the proforma invoice and confirm your order.
D. Make the payment according to the method put on proforma invoice.
E. We prepare for your order in terms of the proforma invoice after confirming your full payment.
And 100% quality check before shipping.
F.Send your order by air or by sea.
5)Why choose us ?
A. Gold supplier on Alibaba !
B. Trade assurance to US$54,000 !
C. Best price & Best shipping & Best service !
Contact information
PREVIOUS：Top Silicon Wafer Manufacturing Companies in the WorldNEXT：Printed Circuit Board: Design, Diagram and Assembly
RELATED NEWS
- Reflow oven provider-Flason
- Lead-free processes propose new requirem
- Nitrogen Protection Reflow Oven
- Mixed process of SMT reflow oven
- Solder Joint Reliability
CATEGORIES
- Company News
- Industry news
LATEST NEWS
- How to Maintain a Reflow Oven?
- How to optimize the reflow profile?
- How the modern solder reflow oven works?
- SMT Defect List
- How to Prevent Solder Ball and Bridging Defects during the S
CONTACT US
Contact: Andrey
Phone: 13691605420
Tel: 0755-85225569
Email: sales@flason-smt.com
Add: Flason Industry park Shajing Town Baoan district shenzhen China 518104
When SMT matter to your business, partner with Flason. Where innovation takes form.
reflow oven lead free reflow oven LED strip reflow oven dual rail reflow oven custom reflow oven China reflow ovenSMT Peripheral Equipment SMT reflow oven
wave soldering machine pick and place machine lead free wave soldering machine custom wave soldering machinecustom pick and place machine SMT Assembly line
SMT Reflow Oven Manufacturer Wave Soldering Mahchine Manufacturer Pick and Place Machine ManufacturerReflow Oven Manufacturer SMT Spare Parts LED Pick and Place Machine
Andrey: sales@flason-smt.com Wechat whatsapp:+86 13691605420
Keywords: Reflow Oven Manufacturer SMT Reflow Oven Manufacturer Wave Soldering Machine Manufacturer SMT Stencil Printer Manufacturer Pick and Place Machine Manufacturer SMT Inspection machine Manufacturer SMT Pick and Place machine Manufacturer SMT Peripheral Equipment Manufacturer SMT Spare Parts Manufacturer SMT Reflow oven SMT AOI Machine Manufacturer Chip Mounter Manufacturer Solder Paste Printers Manufacturer SMT Reflow Oven Manufacturer SMT Feeder Storage Cart Manufacturer Selective soldering machine Manufacturer SMT Nozzle Manufacturer Siemens Feeder SMT Feeder Manufacturer Wave Soldering Machine Manufacturer Lead Free Reflow Oven Manufacturer Selective Wave soldering machine LED strip Reflow Oven Manufacturer Wave Soldering Machine Manufacturer Automatic SMT Stencil Printer Juki RS-1 Pick and Place Machine SMT Peripheral Equipment Manufacturer China wave soldering machine manufacturer Small wave soldeirng machine
For More information,visit US: Reflow Oven Manufacturer or SMT Reflow Oven Manufacturer Wave Soldering Machine Manufacturer SMT Stencil Printer Manufacturer Pick and Place Machine Manufacturer SMT Inspection machine Manufacturer SMT Assembly Line Manufacturer SMT Peripheral Equipment Manufacturer SMT Spare Parts Manufacturer SMT Feeder Manufacturer SMT Nozzle Manufacturer SMT X Ray Machine Feeder storage cart Manufacturer SMT Reflow Oven Manufacturer manufacturer email us: sales@flason-smt.com
»
