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 piao

  1. P

    Method for generating dummy metal fill

    Dummy generation It is easier to use the cadence virtuso tool to generate the dummy layers in the empty area, but if the empty filed is too complex, you have to edit it manully.
  2. P

    Error when adding library in HSPICE 2007

    Adding a library what does 'THJA104K035R " mean ? usually inside your process file, there is ff, ss,tt,fs,sf. u had better refere to all the above 5 instead of "THJA104K035R "
  3. P

    epi and non-epi wafer

    non-epitaxial wafer if I remembered correct, the EPI wafer is more expensive, while it will have better performance than the non-epi wafer in some fields, such as preventing latch up Added after 8 seconds: if I remembered correct, the EPI wafer is more expensive, while it will have better...
  4. P

    VLSI-Design of Non-Volatile Memorie

    Nonvolatile memory for this design area, the main difference is caused by the reliabilty. some changes are specially used for the reliabilty, and there might be some test modes developed for flash specified reliability. even for the algorithm. my understanding is still for realibilty...
  5. P

    DRC ERROR "minimum density"

    actually this is the DFM requirement. it is especially important for the YIELD. you can fill dummy metel or widen your power bus to fix it.
  6. P

    difference between thick gate and thin gate device

    the thin one: high leakage while fast speed. the thick one: low leakage while slow speed,
  7. P

    How to export GDS from Layout in Cadence? Can SKILL do it?

    export cadence to gdsii This is the right way. and inside the popup window, you can use a file to define which layers need to stream out, and what does not need. because sometimes you do not need to export the flag layer.
  8. P

    Why does metal2 shold be vertical ?

    the answer from K-90 is the root cause. in your case, you can change the rule based on your requirement.
  9. P

    How to determine the phase margin of an opamp in Cadence?

    operational amplifier, phase analysis in Eldo, there is also .pz analysis. maybe spectre will hace the similiar tool
  10. P

    Layout suggetions for four input nand gate

    of course you can. if there is no requirement for the performance, you only need to draw the phsical connection. you can refer to the layout of NAND2 in most of the textbook.
  11. P

    Reference to start with about parasitic extraction

    parasitic extraction the best one is STAR-RC user manual, it will not only provide the basic knowledge and will also teach you how to use the tool
  12. P

    What precautions can we take to make layout compatible with DFM?

    DFM issue ? the foundry should provide the DFM rule, as a design engineer, we only need to follow it.
  13. P

    How to use spice model for a component in Cadence

    it seems there is tool in cadence to translate the format. otherwise you can modify it by yourself. good luck
  14. P

    how to simulate the cap and res of one node using cadence

    do not ask the simulator tell you the result, you should know the answer by yourself.
  15. P

    Charge distribution AD Converter

    you can refer to the book from DAvid Johns & ken Martin. it was discussing the charge distribution ADC.

Part and Inventory Search

Back
Top