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Questions and Answers for Metal Semiconductor Junction

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Questions and Answers for Metal Semiconductor Junction

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Leong Mei Tung (188066)

Jacintha a/p Joseph (188408)

Muhamad Iqbal bin Maizul (190311)

Muhammad Firdaus bin Khosim (190388)

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Question and Answer for Metal Semiconductor junction Topic

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Question and Answer for Metal Semiconductor junction Topic

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Ammar Abdulraqeb Abdo Ahmed 186563
Gorakanage Amesh Eromal Gomes 186572
Elauhee Muhammad Yunus 186549
khaled abdulrahman 186485

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6 groups
1.energy band diagram of metal n semiconductor(group illah)
2. Non-rectifying Ohmic Contacts (group Ammar)
3.schottky diode and schottky barrier(grup pidot)
4. Comparison schottky+pn diode (group elly)
5.current-voltage characteristics (group souwei)
6.MESFET (group irfan)

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Questions and Answers for Metal Semiconductor Junction Topic

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Questions and Answers for Metal Semiconductor Junction Topic

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Group Members:
1)Azman bin Babah (189871)
2)Arif Aizat bin Mohd Hashim (189256)
3)Muhammad Danish Irfan bin Ahmad Khalid (190658)
4)Muhammad Hasif bin Ani (189959)

1) What happen if there is no minority carrier injection occurs in forward bias of Schottky Diode?The Schottky diode is a majority carrier device. Unlike a p-n diode, in forward bias no minority carrier injection occurs. Thus there is no diffusion capacitance and the device response can be very fast.

2)What is the mean by the term of Ohmic Contact in Metal Semiconductor junction?
By using easy terms Ohmic Contact is no potential exists between metal and semiconductor .A metal-semiconductor junction results in an Ohmic contact ) if the Schottky barrier height, fB, is zero or negative. In such case, the carriers are free to flow in or out of the semiconductor so that there is a minimal resistance across the contact.

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Questions and Answers for Metal Semiconductor Junction Topic.

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Questions and Answers for Metal Semiconductor Junction Topic.

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Group Members :
1)Tan Sou Wei (187554)
2)Quah Kah Meng (188026)
3)Faiz Dzulhilmi Bin Mohd Azmi (189826)
4)Nufail Izzfarhan Bin Rozley (190288)

1. What will happen when forward voltage exceeds the internal barrier voltage?
When the forward voltage exceeds the diodes P-N junctions internal barrier voltage, which for silicon is about 0.7 volts, avalanche occurs and the forward current increases rapidly for a very small increase in voltage producing a non-linear curve. The “knee” point on the forward curve.

2. Does Semiconductor diodes are characterized by linear current–voltage characteristics?
No,semiconductor diodes are characterized by non-linear current–voltage characteristics as the current flowing through a forward-biased common silicon diode is limited by the ohmic resistance of the PN-junction.

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Muhammad Syakir Aidil bin Abdul Rahman 187131                      Nur Aina binti Mohammad Abdul Aziz 189914                   Nurul Nabillah binti Mahmood 190638 Asma binti Abd Rahman 190652

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Muhammad Syakir Aidil bin Abdul Rahman 187131                      Nur Aina binti Mohammad Abdul Aziz 189914                   Nurul Nabillah binti Mahmood 190638 Asma binti Abd Rahman 190652

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Question for energy band diagram of metal and n-semiconductor

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Questions and Answers for Metal Semiconductor Junction Topic

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Questions and Answers for Metal Semiconductor Junction Topic

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Group members :
1.Elliyani Nazirah bt Ahmad Farid (189819)
2.Nur Syafiqah bt Zulkifri (190124)
3.Ezatul Hafzan bt Adzmi (188037)
4.Nurul Afiqah 'Izzaty bt Tamby Chik (190868)
1. why voltage drop low at metal-semiconductor junction?
ans:
When sufficient voltage is applied to schottky diode, current starts flowing in the forward direction and a small voltage loss occurs across the terminal of schottky diode.
2. Is the type of semiconductor effect the voltage drop?
ans :
yes, it is effected because each semiconductor have majority and minority carriers. For example, pn junction carriers are different with metal n-type semiconductor. That is why it is effect the voltage drop.

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https://www.tes.com/lessons/Ta5ByZayWF-TLA/collab/YBInyCzDolskOgevSQUMHLCViSKNTMeD/register

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Hi everyone, I created this for you to communicate with each other through Padlet environment. :D

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Hi everyone, I created this for you to communicate with each other through Padlet environment. :D