vkp
Newbie level 3
Hi all,
Please help me in undestanding the following point about layouts:
1) As the poly extension is required over active to avoid mask misalignment error. Is there any other constraint over this extension. I have read some where that polt extension depends on Diffusion / implant mask misalignment and poly misalignment. Could any one alaborate this point.
2) The metal contacts are made at poly extention not over poly gate. Why this is done ?
Thanks
Please help me in undestanding the following point about layouts:
1) As the poly extension is required over active to avoid mask misalignment error. Is there any other constraint over this extension. I have read some where that polt extension depends on Diffusion / implant mask misalignment and poly misalignment. Could any one alaborate this point.
2) The metal contacts are made at poly extention not over poly gate. Why this is done ?
Thanks