RDHA710SE10A2F Datasheet, PDF (4/19 Pages) International Rectifier – Neutron Test Report

3.3 Sample Size
Sample size shall be determined based on device type, characterization parameters. As a
minimum, the sample size shall meet the requirements of Mil-STD-883, method 1017. The
sample size for this test is 5 devices (10 circuits) and one device for a control sample.
4.0 Test Device
4.0 The following device is planned for Neutron characterization:
a. RDHA710SE10A2S
4.1 All devices shall be subjected to 160hrs of burn-in and verified for correct electrical
performance prior to arrival at UMRR.
4.2 The device leads will be open during this test and all parts shall be contained inside a
conductive ESD bag during irradiation.
5.0 Test Method
MIL-STD-883, Method 1017 shall be used to establish procedure for all testing described herein.
6.0 Neutron Source
The nuclear reactor at Lowell, Mass is capable of providing fast neutron flux level > 10¹¹ n/cm² – s
with relatively low thermal fluence and gamma irradiation. The Fast Neutron Irradiator (FNI) offers
near uniform spectrum over a large cross-sectional area (12¹¹ x 12¹¹ x 6¹¹). The dosimetry system
used to verify the radiation exposure was P-32, ASTM E-265.
7.0 Record Keeping
The Reactor facility shall provide dosimetry data for the FNI. IR will be responsible for collecting and
compiling the test data.
8.0 Test Procedure
International Rectifier shall control the following test procedure, based on Test Method 1017. IR’s
design engineering department shall be responsible for selecting the neutron fluence level the
product is exposed to.
The facility personnel shall be responsible for loading and moving the device container.
Exposure levels shall be 1E10 n/cm², 2E11 n/cm², and 2E12 n/cm².
Step
1
2
3
4
5
6
7
8
9
Test Procedure - Table 1
Description
Conditions
Pre test all devices prior to radiation exposure.
Per T090132G
Place all devices in ESD safe bag all device pins are
open
Place devices into the shielded container
Unbiased
Lower the container into the irradiation chamber
Facilities personnel
Expose the devices to pre-determined level
See exposure levels
Remove devices at completion of exposure time
Facilities personnel
Allow devices to decay to safe level
Facilities personnel
Test devices after post irradiation
Per T090132G
End test. Read and Record data
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4
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