22 Dec
2015
22 Dec
'15
1:43 p.m.
Or it is a mechanical fault due to a package/die bond wire becoming an open circuit.
This could happen to where the wire joins to either the package or the die pad, or
a wire that was fused due to excess current. Hard to tell unless you decap the
package.
On 12/22/2015 1:32 PM, Alexandre Souza wrote:
Becaise they have diodes to gnd/vcc. And the common
failure of a diode is a
rupture of the barrier and so, it gets shorted. So the gate is shorted to
ground or vcc
Enviado do meu Tele-Movel
Em 22/12/2015 19:29, "Chuck Guzis" <cclist at sydex.com> escreveu:
> On 12/22/2015 01:10 PM, Alexandre Souza wrote:
>
>> It works if the gate is open. But if it is shorted to gnd/vcc, you're
>> in trouble :)
>>
> In my experience, this is the case with a lot of 4000-series CMOS. Don't
> exactly understand why.
>
> --Chuck
>
>
>
>