Nov 7, 2010 #1 prcken Advanced Member level 1 Joined Nov 1, 2006 Messages 419 Helped 41 Reputation 82 Reaction score 37 Trophy points 1,308 Location Shanghai Activity points 4,059 what's the reason to use asymmetric type instead of symmetric one for LDMOS ESD device? only for save layout area?
what's the reason to use asymmetric type instead of symmetric one for LDMOS ESD device? only for save layout area?
Nov 7, 2010 #2 D dick_freebird Advanced Member level 7 Joined Mar 4, 2008 Messages 8,959 Helped 2,333 Reputation 4,683 Reaction score 2,514 Trophy points 1,393 Location USA Activity points 71,398 If you don't need the pin to swing below ground or can stand to forward bias the body when it does, you could use asymmetric and have more functional density (better ESD for area, or less area for equal clamping quality).
If you don't need the pin to swing below ground or can stand to forward bias the body when it does, you could use asymmetric and have more functional density (better ESD for area, or less area for equal clamping quality).