This blog is for the purpose of my class ELE431. This blog is used for discussion forum on any topics in Solid State Devices. Students may post any topics that is related to the subject.
1/7/08
Chapter 2
Students,
Pls make sure that you know how to read a semilog graph. Text book will be available in this week. You can buy it from me and the price is RM62. From the word "Homogeneous s/c".......what do you understand from that word?
assalamualaikum w.b.t... I am so excited to continue this subject.. you gave us a very good explaination today..thank you. from this chapter we were look at the electron and hole mostly.all the elements have 4 electron valences.the number of electron and number of hole be come same for any condition.example when an electron move out then it will leave a hole in s/c.there is homogeneous s/c i think.. -mohd hisyam ismail- EEB4B
assalamualaikum..... in chapter 2 i had learn about the atom model, energy level, how the electron and holes are formed in the s/c device, etc..... -nordhuha mohd yunus-2006687899-ee4a
assalamukm... This chapter is quit interesting...but i need to understand properly and remember the diagram like energy level diagram and so on..from the book that i have read,homogenous semiconductor are those that consists of pure material such as pure Si with impurities uniformly distributed...
hi... Actually homogeneous semiconductor consists of one uniform material like pure Si,Ge and others... Besides,I need to remember the basic concept of atomic model,energy band diagram,hole.... For an extra knowledge,some of the derivation from the equation in this chapter is shown in chapter 1...
assalamualaikum... in chapter 2 i had learn about the atom model, energy level, how the hole can formed.. i learned about the conduction band,band gap and valence band.. electron move from valence band to conduction band and leave the hole..
This chapter is easy if u remember the related components in periodic table such as silicon, Ge,.... So, prepare periodic table.. haha.. Assalamualaikum
assalamualaikum,.. from what i had learn in this chapter is about the semiconductor which is have a conduction band and valence band,..its also related with the holes and carrier electron,..that also related with enrgy band diagram and bonding model,.. -nur amalina abu samah/2006687713/eeb4a-
assalamualaikum.. still, we need to know and understand the fundamental that we're already learn in the past few semester for better understanding in this chapter.. but, thanks to you puan because you did refresh us! but, i think we should go back and study continuously to gain more understanding..
assalamualaikum.. for the start,i learn fundamental knowledge in chapter 2 about s/c which is already told for last sem in material subject.. What can i understand about homogeneous s/c consists of one uniform material like pure Si,Ge.. thanks.. MOHD HAZIQ EEB4A
i think chapter 2 is interesting.. i had learn more about bonding model, intrinsic s/c, extrinsic s/c and so on.. we need to remember that electron are negatively charged and hole are postively charged.another important things, intrinsic material in equilibrium, p=n=ni. thank you puan.. i will remember your lecture until the end of my studying..
assalamualaikum.. actually i become more interested to this subject after enter the second class.For chapter 2, it really needs basic knowledge likes bonding model,energy band model and many more..what i understand about homogenous s/c is pure material such as pure Si, Ge, are uniformly doped(all the same material used in doping process)
assalamualaikum.. actually i become more interested to this subject after enter the second class.For chapter 2, it really needs basic knowledge likes bonding model,energy band model and many more..what i understand about homogenous s/c is pure material such as pure Si, Ge, are uniformly doped(all the same material used in doping process)
Homogenous s/c is our second chapter in ELE 431. Based on my understanding, energy level in s/c consider of two types. There are valence band (Ev) which is highest band that is filled with electron and conduction band (Ec), the empty band above the valence band. Example of homogenous s/c is intrinsic material. It also known as pure s/c where concentration of conduction band electron is equal to concentration of hole in valence band.
Okay…I think that all,sorry for misunderstanding..TQ.
salam... From the note that you had gave us. The homogeneous semiconductor means that the entire semiconductor is made of the same material and doped uniformly.
assalamualaikum..... homo means "same".as for me, homogeneous s/c is a s/c that consist one type of material(intrinsic) or pure s/c with impurities that distribute uniformly (extrinsic). thats all i think. and can anyone teach me how to read semilog graph?........
assalamualaikum.... at the beginning of this chapter,it's easy for me to understand the concept.but,after go through the whole chapter it became more complicated.maybe because i don't have extra notes except your lecture notes.that's all i can say about this chapter. -mohd safuan b. ali aspar- -eeb4a-
assalamualaikum............... In this chapter, i think if you discuss a past year question with us, we be able to more understand...............Tq.......
this chapter is ok for me..not so hard to understand but nobody knows how it'll be in the exam..so far your lecture is interesting and your style of teaching make us able to interrupt with the question on the lecture with no doubt...tq -nurfadzilah ahmad EEB4B-
assalammualaikum...for the first lessons, i can easily understanding the basic concept of moving electron and leaving hole.. i had learn more about bonding model, intrinsic s/c, extrinsic s/c and etc..thank you..-Khairul Amin Mohd Sarmin , EEB4B-
assalamualaikum... in this chapter, i have learn about electrons, holes, intrinsic, extrinsic and etc.. this chapter is quite interesting.. thanks.. 2006688231 EEB4A
salam and hi again to everyone.. from my opinion,chapter 2 (solid)is quite similar to chapter 1(electronics 1).basically, we learn about valence band,conduction band and also energy band. from my understanding, homogeneous semicond related to intrinsic and extrinsic sc.i learnt that when an electron leave its original place, it will create a hole.that's all..thank you puan.. -norhaslin binti nordin EEB4B-
salam and hi again to everyone.. from my opinion,chapter 2 (solid)is quite similar to chapter 1(electronics 1).basically, we learn about valence band,conduction band and also energy band. from my understanding, homogeneous semicond related to intrinsic and extrinsic sc.i learnt that when an electron leave its original place, it will create a hole.that's all..thank you puan.. -norhaslin binti nordin EEB4B-
Assalammualaikum... In this chapter mostly we will learn about electron and hole.. however, the most interesting subtitle is about effective mass which is the result of the external and internal force that acting on electron... NUR HARDHILA OTHMAN -2006688089-
Assalamualaikum.. hopefully i still remember how to read semilog graph.. i'm not really understand homogeneous s/c,but i think its about synchronous movement that will create an equilibrium condition... **Afiqah Yaacob**EEB4B
Assalamualaikum.. I already buy the text book and the semilog graph. About the homogenous s/c, i learnt many about the hole and electron. I am not really understand about the E-K plot graph.. that is all..
assalamualaikum... in this chapter 2 i had learn about how electrons and holes are formed in s/c. i also learned about the band gap, conduction band, etc.
assalamualaikum Through the first class of lesson last week i found that this getting better and better since we go more into the new sketches of diagrams; the bonding model and the band diagram. The doping things is not kinda new thing but it was good to refresh our mind back like what we learn last semester. So i guess the previous knowledge from material science play such an important preparation for this subject. thanks,
assalamualaikum.. the homogeneous semi conductor chapter is all about the bond in intrinsic materials..this chapter show us how the formation of carrier in the material.in intrinsic material, even there are free electron at the room temperature,it still not enough to conduct electricity.so, to make the material counduct electricity, we add impurities into it
assalamualaikum..i think homogenous s/c is between intrinsic and extrinsic material.Also including is electron n holes.Other than that the explaination for that are from energy band diagram and bonding model.
Hi.. homogenous s/c contain the model of semiconductor and other characteristic.. what i know about semiconductor model are bonding model,energy band model and also related to electron and hole movement.. from what i've learn in class.. i think this topic is quite interesting and hope becoming topics are also interesting.. so..i will score this subject.. -nor aida-4B-
assalamualikum w.b.t homogeneous s/c divide by 5 sub topic... 1)s/c models 2)density of states,Fermi-Dirac statistics 3)e- & hole distributions wif energy 4)temp.dependence of carrier concentrations 5)degenerate s/c so far i jz learn d 1st subtopic n it easy i guess...
Assalamua'laikum.. sorry for the late comment. i do not attend your class because some problems. from what i understand, i've learn about the bonding model and energy band model. and...how the electron and holes are formed.
Assalamualaikum... Homogeneous semiconductor are those that consist of one uniform material. for example, intrinsic silicon or silicon with impurities uniformly distributed.
[shahrul akhmar bin sharifuddin] [2006686015] [EEB4A]
salam... from the lecture, i know that homogeneous semiconductor mean the entire semiconductor are made of the same material or uniformly doped.... ~MiMi EEB4B~
54 comments:
assalamualaikum w.b.t...
I am so excited to continue this subject.. you gave us a very good explaination today..thank you. from this chapter we were look at the electron and hole mostly.all the elements have 4 electron valences.the number of electron and number of hole be come same for any condition.example when an electron move out then it will leave a hole in s/c.there is homogeneous s/c i think..
-mohd hisyam ismail- EEB4B
this chapter 2 is interesting and easy for me to understand.thank you maam...~
nur liyana ridzuan~EEB4B~
A'kum..
this week the lecture are so important for basic.More electron and hole are require to move..i can understand but still have some confuse..
assalamualaikum...
so far,i can understand what have i learn in chapter 2..
thanks..
Assalamualaikum...
After study this chapter,i think to target A+ is not as easy as i think before...
NORHALIYATI<2006687155>
assalamualaikum.....
in chapter 2 i had learn about the atom model, energy level, how the electron and holes are formed in the s/c device, etc.....
-nordhuha mohd yunus-2006687899-ee4a
assalamukm...
This chapter is quit interesting...but i need to understand properly and remember the diagram like energy level diagram and so on..from the book that i have read,homogenous semiconductor are those that consists of pure material such as pure Si with impurities uniformly distributed...
nurkhadijah zainol ,EEB4B
hi...
Actually homogeneous semiconductor consists of one uniform material like pure Si,Ge and others...
Besides,I need to remember the basic concept of atomic model,energy band diagram,hole....
For an extra knowledge,some of the derivation from the equation in this chapter is shown in chapter 1...
-suhaida mohamad noor-EEB4B-
Assalamualaikum......
after your second class i really understood what is homogeneous s/c and very excited to learn this subject........
assalamualaikum...
in chapter 2 i had learn about the atom model, energy level, how the hole can formed.. i learned about the conduction band,band gap and valence band.. electron move from valence band to conduction band and leave the hole..
This chapter is easy if u remember the related components in periodic table such as silicon, Ge,....
So, prepare periodic table.. haha..
Assalamualaikum
MOHD HASBULLAH EEB4A
assalamualaikum,..
from what i had learn in this chapter is about the semiconductor which is have a conduction band and valence band,..its also related with the holes and carrier electron,..that also related with enrgy band diagram and bonding model,..
-nur amalina abu samah/2006687713/eeb4a-
assalamualaikum..
still, we need to know and understand the fundamental that we're already learn in the past few semester for better understanding in this chapter.. but, thanks to you puan because you did refresh us! but, i think we should go back and study continuously to gain more understanding..
mohd ameer yuslan EEB4B
assalamualaikum..
for the start,i learn fundamental knowledge in chapter 2 about s/c which is already told for last sem in material subject..
What can i understand about homogeneous s/c consists of one uniform material like pure Si,Ge..
thanks..
MOHD HAZIQ EEB4A
i think chapter 2 is interesting.. i had learn more about bonding model, intrinsic s/c, extrinsic s/c and so on.. we need to remember that electron are negatively charged and hole are postively charged.another important things, intrinsic material in equilibrium, p=n=ni. thank you puan.. i will remember your lecture until the end of my studying..
-norain sahari-
2006687800
Assalamualaikum...
Homogeneous semiconductor means that the entire semiconductor is made of the same material and doped uniformly..
-Nur Amalina Binti Muhamad-
-2006200184-
-EEB4A-
this chapter need us to understand the basic theory for solid state...its interesting and quite easy...TQ
_fathiyah EEB 4B-
assalamualaikum..
actually i become more interested to this subject after enter the second class.For chapter 2, it really needs basic knowledge likes bonding model,energy band model and many more..what i understand about homogenous s/c is pure material such as pure Si, Ge, are uniformly doped(all the same material used in doping process)
assalamualaikum..
actually i become more interested to this subject after enter the second class.For chapter 2, it really needs basic knowledge likes bonding model,energy band model and many more..what i understand about homogenous s/c is pure material such as pure Si, Ge, are uniformly doped(all the same material used in doping process)
hasnoor khuzairah hasim
2006688105
EEB4B
SALAM…greeting to everybody,
Homogenous s/c is our second chapter in ELE 431. Based on my understanding, energy level in s/c consider of two types. There are valence band (Ev) which is highest band that is filled with electron and conduction band (Ec), the empty band above the valence band. Example of homogenous s/c is intrinsic material. It also known as pure s/c where concentration of conduction band electron is equal to concentration of hole in valence band.
Okay…I think that all,sorry for misunderstanding..TQ.
/nurul mahzuzah masduki/
EEB4B
salam...
From the note that you had gave us. The homogeneous semiconductor means that the entire semiconductor is made of the same material and doped uniformly.
>nur suhaili EEB4B<
a'kum...please explain this chapter slowly...give more example..in future,i can understand this subject..mohd nazrie bin ghazali EEB4B
assalamualaikum.....
homo means "same".as for me, homogeneous s/c is a s/c that consist one type of material(intrinsic) or pure s/c with impurities that distribute uniformly (extrinsic). thats all i think. and can anyone teach me how to read semilog graph?........
assalamualaikum...
So far i still can understand this chapter. i hope i also can understand others chapter.
-Mohd Ridhuan Bin Mohamed-
-EEB4A-
assalamualaikum....
at the beginning of this chapter,it's easy for me to understand the concept.but,after go through the whole chapter it became more complicated.maybe because i don't have extra notes except your lecture notes.that's all i can say about this chapter.
-mohd safuan b. ali aspar-
-eeb4a-
assalamualaikum...............
In this chapter, i think if you discuss a past year question with us, we be able to more understand...............Tq.......
assalamualaikum...
for this chapter,i think if you discuss the past year question with us, we'll be able to more understand...
thanks...
this chapter is ok for me..not so hard to understand but nobody knows how it'll be in the exam..so far your lecture is interesting and your style of teaching make us able to interrupt with the question on the lecture with no doubt...tq
-nurfadzilah ahmad EEB4B-
i think homogeneous is the same material used in the doping process.
is it true?
-2006685703-
salam..so far i still can understand this subject..
hopefully i also can understand
the next chapter very well..
-nurhidayahmuhammadhanif-
-EEB4B-
assalammualaikum...for the first lessons, i can easily understanding the basic concept of moving electron and leaving hole.. i had learn more about bonding model, intrinsic s/c, extrinsic s/c and etc..thank you..-Khairul Amin Mohd Sarmin , EEB4B-
this chapter has a lot of diagram deh..is hard to memorize all..but that is not a big deal..
-Mohd Shaari(2006685934)
assalamualaikum..
Homogeneous semiconductor are those that consist of one uniform material.For example like pure (intrinsic) material..
Norhalida binti Othman
EEB4A
assalamualaikum...
in this chapter, i have learn about electrons, holes, intrinsic, extrinsic and etc..
this chapter is quite interesting..
thanks..
2006688231
EEB4A
I think the homogenous s/c is the pure s/c and doped uniformly. Is it true?
-Mohd Syafiq B. Md Salleh-
-EEB4A-
salam and hi again to everyone..
from my opinion,chapter 2 (solid)is quite similar to chapter 1(electronics 1).basically, we learn about valence band,conduction band and also energy band. from my understanding, homogeneous semicond related to intrinsic and extrinsic sc.i learnt that when an electron leave its original place, it will create a hole.that's all..thank you puan..
-norhaslin binti nordin EEB4B-
salam and hi again to everyone..
from my opinion,chapter 2 (solid)is quite similar to chapter 1(electronics 1).basically, we learn about valence band,conduction band and also energy band. from my understanding, homogeneous semicond related to intrinsic and extrinsic sc.i learnt that when an electron leave its original place, it will create a hole.that's all..thank you puan..
-norhaslin binti nordin EEB4B-
Assalammualaikum...
In this chapter mostly we will learn about electron and hole.. however, the most interesting subtitle is about effective mass which is the result of the external and internal force that acting on electron...
NUR HARDHILA OTHMAN
-2006688089-
Assalamualaikum..
hopefully i still remember how to read semilog graph..
i'm not really understand homogeneous s/c,but i think its about synchronous movement that will create an equilibrium condition...
**Afiqah Yaacob**EEB4B
Assalamualaikum..
I already buy the text book and the semilog graph. About the homogenous s/c, i learnt many about the hole and electron. I am not really understand about the E-K plot graph.. that is all..
hi :p hope that i learn more in this chapter..not really familiar but i will try my best..
tq..
mohd rezzuan b nasharudin~EEB4A~
assalamualaikum...
in this chapter 2 i had learn about how electrons and holes are formed in s/c. i also learned about the band gap, conduction band, etc.
-ariff EEB4A-
assalamualaikum
Through the first class of lesson last week i found that this getting better and better since we go more into the new sketches of diagrams; the bonding model and the band diagram.
The doping things is not kinda new thing but it was good to refresh our mind back like what we learn last semester.
So i guess the previous knowledge from material science play such an important preparation for this subject.
thanks,
Mohammad Azmir bin Abdul Aziz
2006685536
assalamualaikum..
the homogeneous semi conductor chapter is all about the bond in intrinsic materials..this chapter show us how the formation of carrier in the material.in intrinsic material, even there are free electron at the room temperature,it still not enough to conduct electricity.so, to make the material counduct electricity, we add impurities into it
-Mohamad Haris Salleh-
-EEB4A-
assalamualaikum..i think homogenous s/c is between intrinsic and extrinsic material.Also including is electron n holes.Other than that the explaination for that are from energy band diagram and bonding model.
Mohd Hafeez
2006686054
Hi..
homogenous s/c contain the model of semiconductor and other characteristic..
what i know about semiconductor model are bonding model,energy band model and also related to electron and hole movement..
from what i've learn in class..
i think this topic is quite interesting and hope becoming topics are also interesting..
so..i will score this subject..
-nor aida-4B-
assalamualikum w.b.t
homogeneous s/c divide by 5 sub topic...
1)s/c models
2)density of states,Fermi-Dirac statistics
3)e- & hole distributions wif energy
4)temp.dependence of carrier concentrations
5)degenerate s/c
so far i jz learn d 1st subtopic n it easy i guess...
salam,
this chapter 2 is interesting and easy for me and i think i can follow this subject and try to get A..INSYAALLAH
SHAHRIL EEB4B
Chapter 2 is quiet more equation must to remember.
Assalamua'laikum..
sorry for the late comment. i do not attend your class because some problems.
from what i understand, i've learn about the bonding model and energy band model. and...how the electron and holes are formed.
liyana sa'ari
EEB4B
Assalamualaikum...
Homogeneous semiconductor are those that consist of one uniform material. for example, intrinsic silicon or silicon with impurities uniformly distributed.
[shahrul akhmar bin sharifuddin]
[2006686015]
[EEB4A]
salam...
from the lecture, i know that homogeneous semiconductor mean the entire semiconductor are made of the same material or uniformly doped....
~MiMi EEB4B~
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