Question about Memory Storages?

[Skeptical Greg]

Ok, can you tell me role of semiconductors in memory storage?

Semiconductors are part of the materials that some memory storage devices are made from.

A good place to start..

How Stuff ( semiconductors ) Works

 

[Donks]

Kumar, this is as simple as I can possibly state it:
Semiconductors are used because it is easy (in relative terms) to make very small, very fast switches with them. And we know how to arrange those switches to perfom lots of things, like store memory or do logical operations. That's it.

 

[Kumar]

It's the same as the role of ink in preserving knowledge in books. The ink doesn't have any memory. Neither does the paper the book is printed on.

Do you mean to say colours & shape/dimentions of ink which makes preserving knowledge in books? I think, it is memory as we can recode it.

 

[Donks]

Do you mean to say colours & shape/dimentions of ink which makes preserving knowledge in books?

It is the contrast of the color of the ink and the color of the paper (so you can read it) and the code being used (written language).

 

[Kumar]

Kumar, this is as simple as I can possibly state it:
Semiconductors are used because it is easy (in relative terms) to make very small, very fast switches with them. And we know how to arrange those switches to perfom lots of things, like store memory or do logical operations. That's it.

Let us check it directly.

We use carriers as water, alcohol & lactose. Some silicon based contaminations are also remain present in homeopathic remedies. So when we combine these with active substances & potentize, Can this switching of body heat is possible on application of remedies--making diferant patterns, due to combination of diferant substanes via carbon or silicon?

I mean whether differant combinations of substances if containing semiconductors, if exposed to heat,current etc., can create this switching of heat etc. or not? If yes, will it not be an information stored?

 

[Donks]

Let us check it directly.

We use carriers as water, alcohol & lactose. Some silicon based contaminations are also remain present in homeopathic remedies. So when we combine these with active substances & potentize, Can this switching of body heat is possible on application of remedies--making diferant patterns, due to combination of diferant substanes via carbon or silicon?

No. You missunderstood what I meant by "switch." I meant an actual, physical switch. Something designed to turn something else on and off.

I mean whether differant combinations of substances if containing semiconductors, if exposed to heat,current etc., can create this switching of heat etc. or not?

No. The materials are not the only thing required for this switch to work. It requires the proper configuration and doping.

If yes, will it not be an information stored?

No. That requires even more configuration, several switches working together. In the case of a computer, billions.

Ok, I'll try again. The switch I'm referring to is called a "transistor." It acts as a light switch: you press the button, and the light turns on. In the case of the transistor, a voltage is applied to one terminal, and that allows current to flow between the remaing 2 terminals.
http://www.ele.uri.edu/Courses/ele343/lab/lab0/

 

[Kumar]

Donks,

Pls just tell if we apply heat to any semiconductor on one side, how it will behave? Furthur, if few substances are mixed in it, how then it will behave on application of heat? Diode can decode radio signals, I think, although headphone, battery, ariel is require.

 

[Donks]

Donks,

Pls just tell if we apply heat to any semiconductor on one side, how it will behave?

Same as with all substances. Electrons jump to a higher orbit. In the particular case of semiconductors, they jump from the valence band to the conduction band.

Furthur, if few substances are mixed in it, how then it will behave on application of heat?

Now you get into the area of doping. I won't bother.

Diode can decode radio signals, I think, although headphone, battery, ariel is require.

So?

 

[Kumar]

Same as with all substances. Electrons jump to a higher orbit. In the particular case of semiconductors, they jump from the valence band to the conduction band.

It is not clear to me, how semiconductors are differant from other elements.

 

[Donks]

It is not clear to me, how semiconductors are differant from other elements.

Tough luck, then.

 

[drkitten]

It is not clear to me, how semiconductors are differant from other elements.

1) The band-gap energy in semiconductors is larger than in conductors, but smaller than in insulators.

2) The electron conflugalization parameters in semiconductors admit of a uniquely paragoric solution.

Exactly one of the preceding statements is true; the other is gibberish. When you figure out which, let me know.

 

[Kumar]

1) The band-gap energy in semiconductors is larger than in conductors, but smaller than in insulators.

2) The electron conflugalization parameters in semiconductors admit of a uniquely paragoric solution.

Exactly one of the preceding statements is true; the other is gibberish. When you figure out which, let me know.

First one looks more logical.

 

[drkitten]

First one looks more logical.

Why do you say that?

 

[Kumar]

It it possible that mixture of homeopathic active substance, carriers & contaminations causes somewhat doping effect?

 

[drkitten]

It it possible that mixture of homeopathic active substance, carriers & contaminations causes somewhat doping effect?

Absolutely. If you carry homeopathically active substances, you become a dope.

 

[Kumar]

Absolutely. If you carry homeopathically active substances, you become a dope.

In first few potencies raw remedy substances remain present in molecular forms. It it can dope carriers or contaminations, then, will these doped carriers & contaminations carry information of active substances and can furthur carry this information to next potencies?

 

[Donks]

In first few potencies raw remedy substances remain present in molecular forms. It it can dope carriers or contaminations, then, will these doped carriers & contaminations carry information of active substances and can furthur carry this information to next potencies?

No.
The doped carriers and contaminations wont remain doped if you dilute them. Doping means actually having the doping substance there.
Second, something does not gain the ability to carry information by virtue of being doped. You need to construct the proper configuration.

 

[Kumar]

No.
The doped carriers and contaminations wont remain doped if you dilute them. Doping means actually having the doping substance there.
Second, something does not gain the ability to carry information by virtue of being doped. You need to construct the proper configuration.

Extrinsic semiconductor
One may also dope the semiconductor material. Semi-conductor materials are doped with impurities chosen to give the material special characteristics. One may want to add extra electrons or remove electrons.

Doping atoms are chosen from elements in group III or V of the periodic table[1] which are similar in size to silicon atoms. Thus individual intrinsic semiconductor atoms may be replaced with dopant atoms to form an extrinsic semi-conductor.

The binding energy of the outer electron added by the impurity is weak. This is represented by placing the excess electrons just below the conduction band. Thus very little energy is required to move these electrons into the conduction band. Thus an extrinsic semi-conductor operating at room temperature will have most of these "extra" electrons existing in the conduction band. Thus at normal operating temperature, . Where nc is number of conduction electrons and Nd is the number of dopant atoms.

http://en.wikibooks.org/wiki/Electron_Device_Modeling:Semiconductor_Physics

Can other elements than from group III or V, can somewhat dope semiconductors?

 

[Donks]

Can other elements than from group III or V, can somewhat dope semiconductors?

Yes, you can dope semiconductors with other elements.

 

[Kumar]

Yes, you can dope semiconductors with other elements.

Thanks. Btw, whether elements in crystal lattice/semiconduting form is absolutely differant in properties than its elemental atomic form? I mean; whether silicon atoms in its semiconductor form are completely differant from its silicon atom in its free/non semiconductor form in view of below quote?

In a crystal each electron "sees" the entire lattice. Therefore the available electrons will fill the available energy bands of the crystal filling the lower energy band before the higher ones.

All the available electrons fill each energy band progressively until all the electrons are occupying energy states. Once an energy band is full, the net velocity of electrons is zero. As one electron moves in one direction, another must be moving in the opposite direction. If the number of available electrons completely fills all available energy bands with few left over, the material is an insulator. The distinction of a semi-conductor comes about if the energy required to go to the next available