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ORCA 2T15A Heavy Ion Test

Brookhaven National Labs, July, 2001

ERRATA: A post analysis of the test showed an error in the contractor's board with respect to the remote sensing on the power supply.   As a result, we repaired the board and retested in August, 2001.  The outcome of the test was not significantly different other than the observation of very large latchup currents, in some cases exceeded 2A.  ORCA2T_BNL_08_01.htm

Summary

Two ORCA 2T15A devices was tested at Brookhaven National Lab.  The primary goal of this test was a Single Event Latchup (SEL) evaluation. both devices latched up with a threshold LET of approximately 11 MeV-cm²/mg.

Part Markings

OR2T15A-3
S240 99870
9833K88A

9987088A
2T15A 9832K

Device Bias

V_CCIO = 5.5 VDC
V_CCCore = 3.6 VDC

Device Temperature

Nominal

Ions Used

Ion	Energy (MeV)	Range (µm)	LET (MeV-cm2/mg)
Ti-48	192.7	39.85	19.79
Si-28	181.9	74.08	7.972

 

Device S/Ns

ORCA1
ORCA2

Notes

Shutter Latch™ (SL™) indicates that the device latched upon opening of the shutter and that a reasonable estimate of the fluence until latchup could not be made.

Quick Latch™ (QL™) indicates that the device latched soon after opening of the shutter and that a reasonable estimate of the fluence until latchup could not be made.   This is slower than a shutter latch.

Images of the Test Cards

PROGRAMMABLE TECHNOLOGIES WEB SITE - ORCA 2T Images

Summary

Device S/N	Run Number	Ion	Angle	LET (MeV-cm2/mg)	Fluence (p/cm2)	Flux (p/cm2/s)	Latch	Strip Chart*	Comments
ORCA1	1	Ti-48	0	19.79		105	Yes		Current limit set too low, hit limit.
ORCA1	2	Ti-48	0	19.79		105	Yes	orca1t2.pdf	SL™
ORCA1	3	Ti-48	0						No power on part
ORCA1	4	Ti-48	0	19.79		105	Yes	orca1t4.pdf	SL™
ORCA1	5	Ti-48	0	19.79		104	Yes		SL™
ORCA1	6	Ti-48	0	19.79		104	Yes		QL™
ORCA1	7	Ti-48	0	19.79		103	Yes	orca1t7.pdf	SL™
ORCA1	8	Ti-48	0						No Beam
ORCA1	9	Ti-48	0	19.79	2 x 104	103	Latch	orca1t9.pdf
ORCA1	10	Si-28	0	7.972	107	1.8 x 104	No
ORCA1	11	Si-28	60	15.95	3 x 104	1.1 x 104	Latch
ORCA1	12	Si-28	60	15.95	3 x 106	5.1 x 104	Latch
ORCA1	13	Si-28	60	15.95	2.9 x 106	5.1 x 104	Latch
ORCA1	14	Si-28	60	15.95	6.9 x 106	5.0 x 104	Latch
ORCA1	15	Si-28	60	15.95	2.6 x 106	5.0 x 104	Latch
ORCA1	16	Si-28	60	15.95	6.3 x 105	4.7 x 104	Latch
ORCA1	17	Si-28	60	15.95	3 x 105	4.8 x 104	Latch
ORCA1	18	Si-28	45	11.27	9.9 x 106	6.8 x 104	Latch
ORCA1	19	Si-28	45	11.27	107	6.3 x 104	No
ORCA1	20	Si-28	45	11.27	107	7.0 x 104	No		Current drifting
ORCA2	21	Si-28	60	15.95	4.7 x 106	4.1 x 104	Latch	orca2s1.pdf
ORCA2	22	Si-28	60	15.95	4.5 x 105	3.5 x 104	Latch	orca2s2.pdf
ORCA2	23	Si-28	60	15.95	4.6 x 105	3.7 x 104	Latch	orca2s3.pdf
ORCA2	24	Si-28	45	11.27	107	5.6 x 104	No

* Sample strip charts.  A complete set can be made available upon request.

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Last Revised: January 19, 2003
Digital Engineering Institute
Web Grunt: Richard Katz