Technical data

Module 12
Miscellaneous Operations
12-18
✓ Flash Memory Test
✓ Transistor photomos
SW1
SW2
SW3
SW1
SW2
16440A Selector
To DUT
To DUT
Input SMU
Input SMU
Input PGU
Input PGU
SW1 & SW2 : Mechanical Relay
SW3: Solid State Relay
Channel 1
Channel 2
SMU/PG Selector
● Easy to switch between SMU and PGU
● Solid state relay
The selector has two channels as shown above. Each channel has two ports (SMU and PGU).
External pulse generators can also be connected. The connectors are Triax for SMUs and outputs,
and BNC for PGUs.
Up to two selectors (four channels) may be required for some reliability tests such as Flash
EEPROM.
As a special design for Flash memory, a solid state relay was added to float the drain. This
eliminates wear and tear of millions of closures that would occur with a mechanical relay.