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SPICE , Layout and Design Flow ?

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truebs

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spice layout

hi,

can some one please explain what is the design flow in IC Design.
What is the use of SPICE models to Designer and Layout Designer ?
Why every foundary provides spice models ? is it for parasitics ?

thanks !
 

truebs said:
hi,

can some one please explain what is the design flow in IC Design.
What is the use of SPICE models to Designer and Layout Designer ?
Why every foundary provides spice models ? is it for parasitics ?

thanks !
Click to expand...
The foundry provides spice models to enable designer do a simulation while designing a product..... spice model representing the devices behaviour on the silicon in a text form..... So, u can use ur simulator to simulate the actual behaviour of the devices
 

First of all, you must understand that Spice, like spectre and Eldo and others are simulators not models.., the models are suited to work with the simulator, for example the most famous model for integrated MOS transistor is BSIM3, so you will find BSIM3 models for Spectre, for Spice and so on.

The model is provided not only for parasitics, it also defines the performance of the device itself,

The design flow for Ic design is 1. Device charactarization 2. schematic design 3. Layout design 4. DRC "Design rule check" 5. LVS "Layout versus schematic and finally 6. Post layout simulation.
 

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