HP 4155A Programmer's Guide

Sample Application Programs
Flash EEPROM Test
Device Connection for NAND type ash EEPROM.
As shown in Figure 6-2, two HP 16440A SMU/Pulse Generator Selectors are
used to switch units for forcing write pulse and erase pulse, and measuring
Vth.
Figure 6-2. Device Connection (NAND Type)
Table 6-2 shows the selector's state for each phase:
Table 6-2. Selector's State in Each Phase
Selector
Channel
Write Erase Vth Measure
CH1 (Drain) PGU PGU SMU
CH2 (Gate) PGU PGU SMU
CH3 (Source) PGU PGU SMU
CH4 (Substrate) PGU PGU SMU
6-5

HP 4155A Specifications

General

Brand	HP
Model	4155A
Category	Measuring Instruments
Language	English