6 Memory
6.15 NandFlash3 IV-Erase-IV: NAND flash memory cell Id-Vg, Erase, Id-Vg
(A.03.10)
[Supported Analyzer]
B1500A
[Description]
Measures the Id-Vg characteristics of NAND-type flash memory cell, performs the data erase operation,
measures the Id-Vg characteristics again, and plots the both Id-Vg characteristics on a graph.
Before the Id-Vg measurements, the initial pulse will be applied to the device under test.
[Device Under Test]
NAND-type flash memory cell
[Required Modules and Accessories]
Agilent B1525A SPGU 1 unit
Selector (16440A/16445A 1 set or HRSMU/ASU 2 sets)
[Device Parameters]
Lg: Gate length
Wg: Gate width
Temp: Temperature
IdMax: Drain current compliance
[Test Parameters]
Gate: SMU connected to Gate terminal, primary sweep voltage output
Drain: SMU connected to Drain terminal, constant voltage output
Source: SMU connected to Source and Substrate terminals, constant voltage output
PSource: SPGU channel connected to Drain and Source via Selector
VgStart: Sweep start voltage for Gate terminal
VgStop: Sweep stop voltage for Gate terminal
VgStep: Sweep step voltage for Gate terminal
Vd: Drain voltage
Id@Vth: Drain current to decide the Vth
IntegTime: Integration time
PulsePeriod: Erase pulse period
PulseDelay: Erase pulse delay
PulseWidth: Erase pulse width
Verase: Erase pulse output level
LeadingTime: Pulse leading edge transition time
TrailingTime: Pulse trailing edge transition time
[Extended Test Parameters]
Vs: Source voltage
IgLimit: Gate current compliance
HoldTime: Hold time
DelayTime: Delay time
BaseValue: Erase pulse base value
NoOfPulse: Number of output pulses for the erase operation
DrainMinRng: Minimum range of drain current measurement
Agilent EasyEXPERT Application Library Reference, Edition 8
6-33
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