3 Replies Latest reply on Dec 12, 2012 1:11 AM by kg2000chua

    DRC problem: M1 W filler density > 50%

    kg2000chua

      Hi, I've got these problems when doing the DRC:

      M1 W filler density > 50%

      M1 W filler density < 25%

       

      Could anyone help me to solve this problem?

       

      Thanks a lot!

       

      Regards,

      Kok Gnee

        • 1. Re: DRC problem: M1 W filler density > 50%
          kg2000chua

          hi all,

                 I have solved this problem myself:

          When it says M1 W filler density > 50% -- solution is to reduce the area of M1 layer.

           

          when it says M1 W filler density < 25% -- solution is to increase the area of M1 layer.

           

          Thanks,

          Kok Gnee

          • 2. Re: DRC problem: M1 W filler density > 50%
            chris_balcom

            Thanks for following up Kok Gnee.

             

            I was interested in this myself and considered replying but I guess I didn't understand if you were getting false errors, or real errors and I hoped someone else would have better ideas than I did.

             

            One thing I am still wondering about is whether this kind of density check is practical for such a small cell. I've seen how density checks are important for a completed design, and also for large blocks, but I still wonder if density checks are practical for tiny cells.

             

            If you (or anybody else) have an opinion please let me know.

             

            Thanks,

            -chris

            • 3. Re: DRC problem: M1 W filler density > 50%
              kg2000chua

              Hi Chris,

                     Thanks for your reply!

               

              Initially, I didn't understand the meaning of it. Only until recently that I manage to find out the reason and solve it. That might be due to insufficient study and research in this area.

               

              Regarding your questions: I'm also wondering why there is such a need for such a tiny cell?!

               

              Anyway, thanks!

               

              Regards,

              Kok Gnee