I have a project where I need to put a switch in between the resource from tester and the DUT. My DUT is a 48 pin device (semiconductor IC), each of the pins has its own ESD diode. The switch, for example, can be an ADG1612.
FYI on my project : I need to do a continuity test. It is to check if the DUT exists or is placed properly in the socket by measuring the DUT's ESD protection diode. The test method is to apply current and measure the voltage, expecting ~ 0.6v.
My tester resource has already shorted the Force and Sense pins, so there is no way to use Force and Sense to detect if DUT is place correctly in socket.
Since there is a switch in between resource and DUT, it will still get a diode measurement if the DUT does not exist because it is checking the ESD diode of the switch now.
For the DUT pin which connects directly to resource, it will get clamp value if there is no DUT connected or get a real diode measurement if the DUT does exist.
my question is: Is there any switch on the market (from AD, TI..etc) that has a switch without an ESD diode? Or called a flying diode? Or is there any switch on the market that will not affect/confuse the diode measurement?