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daojx
Joined: 20 Jul 2003
Posts: 36
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 21 Jul 2008 15:55 question about ESD of RFIC |
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Hi
I paste questions on several forums for help,but the answer is few.
Hope I can get help from EDA board:
1.why is RFIC more easy to suffer EDS damage that mixed ic?
2.Does the ESD protect circuit on RFIC need power supply
to activate?
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jecyhale
Joined: 19 Feb 2008
Posts: 402
Helped: 39
Location: China
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| 22 Jul 2008 5:00 Re: question about ESD of RFIC |
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| daojx wrote: |
Hi
I paste questions on several forums for help,but the answer is few.
Hope I can get help from EDA board:
1.why is RFIC more easy to suffer EDS damage that mixed ic?
2.Does the ESD protect circuit on RFIC need power supply
to activate? |
1, RF signal is sensitive with parasitic capacitance of ESD.
Because the frequency level is as high as GHz.
2. No. But it should be connect to VDD and GND.
Because the charge will flow throuth the path.
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khouly
Joined: 20 Oct 2003
Posts: 2444
Helped: 335
Location: EGYPT
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| 22 Jul 2008 10:49 question about ESD of RFIC |
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ESD protection add alot of parasitics "resistive and capacitive" and this is very critical to RF signal , so in some IC's the ESD protection in RF doesn't exist
that's y the RFIC is more sensitive to ESD
this is as far as i think
khouly
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Jim cage
Joined: 02 Jul 2006
Posts: 148
Helped: 6
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| 22 Jul 2008 11:42 Re: question about ESD of RFIC |
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| Furthermore, the ESD has nonlinear capacitance (reversed bias PN junction) which gives rise to nonlinearity and in some cases, can limit the SFDR of the lineup.
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