What is OPC?

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venkat_kode

Joined: 03 Jul 2008
Posts: 57
Helped: 1
Location: bangalore

10 Jul 2008 5:12 What is OPC?

Can any body explain about OPC?

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LvW

Joined: 07 May 2008
Posts: 1466
Helped: 242
Location: Germany

10 Jul 2008 9:52 Re: What is OPC?

In WIKIPEDIA you can find app. 10 different explanations. Why don´t you try it ?

eng_ahmed214

Joined: 19 Jun 2006
Posts: 80
Helped: 8
Location: Egypt

10 Jul 2008 10:59 Re: What is OPC?

hi,,

simply OPC is optical proximity correction ...

- As the dimensions of the transistor get smaller , the minimum feature size of the design become very comparable to the wave length of the ultra-violet source used to draw the mask on the wafer and that's causes the light to diffract light through the mask openings and so distorts the design drawn on the wafer.

- OPC is the solution for this issue , this is done by making some changes to the design and the openings drawn on the mask so that after diffraction the resulted design is the desired one not the one drawn on the mask.

Note OPC is one of the resolution enhancement techniques (RET) as there are other problem caused by the small dimensions of the transistor.

hope this helps you ..

Ahmed Samy