lhenfalculan
Newbie level 4
What is latch-up? How does it affect the device and how can i prevent it?
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it is the phenomina that it pumps noise through substrate into the devices,lhenfalculan said:What is latch-up? How does it affect the device and how can i prevent it?
tlihu said:Latch-up is well known nowadays and many text books have described it clearly.
In brief, if large PMOS and NMOS are put TOO closely, the two devices and substrate will form a positive feedback loop and current increases exponentially. Once the devices can't stand with the huge current, they're broken and the circuit fails.