Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Recent content by rangermad

  1. R

    65nm bonding and pad size

    Bond pads are sized not only for assembly but also wafer probe. Are you going to be doing wafer level probe?
  2. R

    Length of Path in Cadence Virtuoso/DFII

    In IC6 Go to - Options -> Dynamic Display Turn on info balloon, select desired info, apply, hover cursor over path. It should then display the path length
  3. R

    LVS Subtype error at layout

    looks lt is a device mismatch. Try changing your pmos pcell from pch_alvt_mac to a pch_lvt_mac device
  4. R

    How to Solve the “Naming Error” in the LVS

    You have a number of discrepancies. Start with fixing your port error.
  5. R

    Why we should choose even number of finger

    How you put in the number of fingers in the schematic may effect your simulations. A transistor with a width of 1000u, mult of 1 is different then a 1000u transistor with a mult of 10 which if different then a transistor that has a width of 100 but iterated <1:10>.
  6. R

    The issue of Assura LVS

    Do you need a complete guard ring for LVS or just a nwell/pwell tie?
  7. R

    PMOS WELL of same bulk potential of different transistor groups

    Only the design engineer can give an adequate answer to your question.
  8. R

    layout connection using different metalization layers

    Check your layout design rules. Is your metal 4 considered "top metal" by your design rules?
  9. R

    Hot NWELL warning in layout design

    Any NWELL you have connected like this will get flagged due to potential latch-up issues. Be sure to ring the NWELL with a PSUB contact ring. Also, try to keep these NWELLs as far away from ESD devices that you can.
  10. R

    No connection for Nwell

    Why have a NWELL with nothing inside of it? The assumption is that a device will be inside the nwell. So, all nwell will need to be connected to some potential.
  11. R

    DRC Error: N+SD Iso Psub tap spacing must be <=10.0 um

    Sounds like you need to add a psub tap next to your N+SD.
  12. R

    LFoundry layout design rules

    Not sure this is correct. Assuming this is a simple mos device then the connections are S/D(gate) on left or right, GATE(Drain) on top, body(Source) on bottom.
  13. R

    x snap spacing and y snap spacing

    Your DRC deck should have some off grid checks. Go ahead and draw something on a 0.0000001u grid and see what happens.
  14. R

    Inter-digitization Pattern and Dummies for MOS Layout

    I would probably do AB AB AB AB with dummies on both sides. Much depends on the preferences of the design engineer
  15. R

    N-well antenna effect

    The charge build up may not be from the gate to body of the mosfet. It can also be the body to gate of a mosfet. So during processing, before contact and metal, there can be a charge build up on the body of a pmos transistor (nwell) relative to the gate. This is process dependent as anilkrpandey...

Part and Inventory Search

Back
Top