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wangkes9
Joined: 10 Jan 2008
Posts: 26
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 05 Jul 2008 5:01 Is there passivation layer on the profile and bottom of chip |
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I know there is this layer on the top of chip.but Is there passivation layer on the profile and bottom of chip? I am afraid it is conductive because there is some wire
under it on the pcb.
Thanks.
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k_90
Joined: 25 Jan 2006
Posts: 101
Helped: 14
Location: Scotland,GB
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| 07 Jul 2008 13:05 Re: Is there passivation layer on the profile and bottom of |
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I know there is this layer on the top of chip.but Is there passivation layer on the profile and bottom of chip? I am afraid it is conductive because there is some wire
under it on the pcb.
What do you mean the profile? There is no passivation on the bottom of the chip as this would be the substrate.
Added after 1 minutes:
look at it like filling a tank up then putting a lid on it (passivation)
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lylnk
Joined: 12 Sep 2005
Posts: 33
Helped: 4
Location: China Beijing
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| 09 Jul 2008 16:17 Is there passivation layer on the profile and bottom of chip |
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| The bottom of die is substate. It is conductor.
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