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Recent content by andyjackcao

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    [ESD question]do a cmos swith which connected to PAD should obey ESD rule?

    may not obey the ESD rule. Yet the ESD structre is supposed to be rail-based. for example, the 2 diodes are used in analogy pad. what's impoart, the ESD clamp used between power and gnd is supposed to work on normal state during ESD. And lots of such clamps are supposed to be used.
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    [HELP] ESD designation puzzles me

    Dear Sir/Lady I'm from China,I am puzzled ESD designation;I have been in ESD circuit/layout design for 4 years, however my designation is based on the FAB's guideline and my experence. Thus there is no detail simulation data to predict my ESD circuit's characteristic, it puzzle me...
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    help:I need DO-218AB package

    hi I am looking for a package house; I need package is DO-218AB thx very much email:andyjackcao@sina.com.cn best and regards andyjackcao
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    what TVS is used for RS485 bus protection?

    rs485 tvs I think that the low captance TVS with strong ESD capbility is suit for the RS485 bus protection
  5. A

    [help]-I am looking for MIL-HDBK-978B

    thank you very much Karl I will try other ways Regards andyjackcao
  6. A

    [help]-I am looking for MIL-HDBK-978B

    I really appreciated for your so kind help thank you very much
  7. A

    [help]-I am looking for MIL-HDBK-978B

    THX Kral very much for your kind reply when I browse the web,I got a little problem ; I found my computer couldn't connect to the station so that I couldn't download the stardard or register can you help me?
  8. A

    [help]-I am looking for MIL-HDBK-978B

    mil-hdbk-978b hi, guys, I am going to join in a project of TVS, and I need the TVS test stard,MIL-HDBK-978B if you have got it , I really appreciated for your shareing TKS a lot
  9. A

    why 200 ohm is used in ESD protection circuits?

    Re: why 200 ohm? I would like to add something; except what's said above, I think that the protection for CDM is need to be considerated;if the resistor is too huge, then the second protectin for CDM will be damaged
  10. A

    ESD in silicon integrated circuits

    electrostatic discharge by kenneth kaiser.pdf may be you could search on the bookstore of Amazon,then there are many book about esd
  11. A

    how to simulate

    spectre snapback devices hello,in some book it told me that if the esd device is working on NB_MODEL,then we could simulate it with simple MODEL,if the device is working on the snapback ,then we have to add anther ESD_MODEL; by far,there are many software on esd ,you may refer them
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