Q1 2011 (2010 data) Reliability Monitor Report

Reliability
Monitor
Report
High Temperature Operating Life
Data Retention Bake
Temperature Cycle
Temperature & Humidity Bias/ HAST
Steam Pressure Pot
First QUARTER 2011
ATMEL PROPRIETARY
Table of Contents
1. Executive Summary
1
2. HTOL (sorted by product BU)
2
3. HTOL (sorted by technology)
3-4
4. Data Retention Bake (sorted by product BU)
5
5. Data Retention Bake (sorted by technology)
6
6. Temperature Cycle
7
7. Temperature Humidity Bias & HAST
8
8. Steam Pressure Pot
9
9. Technology List
10
10. Failure Rate Calculations
11
11. Definitions
12
RELIABILITY MONITOR -- ATMEL PROPRIETARY
Reliability Monitor Report
Date:
Apr 12, 2011
Executive Summary
The intent of the Reliability Monitor Program is to measure the reliability of previously
qualified devices on a quarterly basis. This is achieved by selecting representative
devices within a process, package or business unit and performing a series of reliability
tests to ensure that the reliability has maintained over time. Listed below are the overall
results for the last quarter.
1.
High Temperature Operating Life (125° - 150°C; 0 failures)
Failure Rate: 11 FITS (1,366K device-hours)
Note: The Exponential Model is used to derive FIT rates (60% Confidence; EA = 0.6
eV). Also, Thermal and Voltage Acceleration are used to compute the overall
acceleration factor. Weighted acceleration factors (WAF) for a group of products are
calculated by taking the weighted average of each device’s acceleration factor multiplied
by its corresponding device hours. All failures were inconclusive.
2.
Data Retention Bake (150°C; 0 failures)
Failure Rate: 15 FITS (523K device-hours)
Note: The Exponential Model is used to derive FIT rates (60% Confidence; EA = 0.6
eV). Since there is no bias applied during testing and the stress temperature is fixed for
all devices at 150°C, the acceleration factor is 117 for all groupings.
3.
Temperature Cycle (-65°C to 150°C, 500 cycles) *
Failure Rate: 0.00% (0 failures out of 542 units)
4.
Temperature Humidity Bias (85°C/85%RH) and HAST (130°C/85%RH) *
Failure Rate: 0.00% (0 failures out of 429K device-hours)
Note: A 20:1 Acceleration Factor is used to combine HAST results with THB).
5.
Steam Pressure Pot (121°C/100%RH) *
Failure Rate: 0.00% (0 failures out of 465 units)
RELIABILITY MONITOR -- ATMEL PROPRIETARY
* indicates that preconditioning is performed prior to the stress test.
1
High Temperature Operating Life
(sorted by FAMILY)
BU
QTR
48 Hours
168 Hours
500 Hours
1K Hours
REJ
SS
REJ
SS
REJ
SS
REJ
SS
Device-Hours*
WAF
EFR PPM
FITS
APG
4
LAST 4Q
0
0
82
568
0
0
82
568
0
0
82
568
0
0
82
568
82,000
568,000
23
34
0
0
492
48
ASIC
4
LAST 4Q
0
0
260
705
0
0
260
705
0
0
260
705
0
0
215
615
237,500
660,000
20
21
0
0
197
66
MEMORY
4
LAST 4Q
0
0
200
1,800
0
0
200
1,200
0
0
200
1,200
0
0
200
1,200
200,000
1,228,800
48
51
0
0
95
15
MCU
4
LAST 4Q
0
0
754
10,345
0
0
231
2,348
0
0
154
2,117
0
0
154
1,347
192,040
2,154,664
3
9
0
0
1,730
46
RFA
4
LAST 4Q
0
0
693
3,153
0
0
693
3,153
0
0
693
3,153
0
0
616
2,693
654,500
3,076,000
108
130
0
0
13
2
ATMEL
4
LAST 4Q
0
0
1,989
16,571
0
0
1,466
7,974
0
0
1,389
7,743
0
0
1,267
6,423
1,366,040
7,687,464
64
67
0
0
11
2
RELIABILITY MONITOR -- ATMEL PROPRIETARY
2
High Temperature Operating Life
(sorted by TECHNOLOGY)
TECH
QTR
48 Hours
168 Hours
500 Hours
1K Hours
Device-Hours*
WAF
EFR PPM
FITS
77
77,000
117
0
102
0
384
384,000
117
0
20
45
45
0
0
0
0
22,500
22,500
3
3
0
0
14,017
14,017
0
230
0
77
153,500
130
0
46
230
0
230
0
77
153,500
92
0
65
0
77
0
77
0
0
38,500
117
0
203
154
0
154
0
154
0
154
154,000
117
0
51
0
0
77
154
0
0
77
154
0
0
77
154
0
0
77
154
77,000
154,000
117
117
0
0
102
51
4
LAST 4Q
0
0
539
1,616
0
0
539
1,616
0
0
539
1,616
0
0
462
1,539
500,500
1,730,500
101
141
0
0
18
4
4
LAST 4Q
0
900
0
300
0
300
0
300
328,800
57
0
49
58K
4
LAST 4Q
0
0
677
3,533
0
0
154
805
0
0
77
728
0
0
77
728
115,040
871,880
3
3
0
0
2,994
397
57K
4
LAST 4Q
0
0
100
200
0
0
100
200
0
0
100
200
0
0
100
200
100,000
200,000
23
23
0
0
403
202
56.9K
4
LAST 4Q
0
240
0
240
0
240
0
240
240,000
48
0
79
56K
4
LAST 4Q
0
0
100
400
0
0
100
400
0
0
100
400
0
0
100
400
100,000
400,000
23
23
0
0
403
101
46K
4
LAST 4Q
0
0
82
328
0
0
82
328
0
0
82
328
0
0
82
328
82,000
328,000
23
23
0
0
492
123
45.6K
4
LAST 4Q
0
0
77
77
0
0
77
77
0
0
77
77
0
0
77
77
77,000
77,000
142
142
0
0
84
84
REJ
SS
REJ
SS
REJ
SS
REJ
SS
4
LAST 4Q
0
77
0
77
0
77
0
4
LAST 4Q
0
384
0
384
0
384
SCMOS2
4
LAST 4Q
0
0
45
45
0
0
45
45
0
0
SCMOS3
4
LAST 4Q
0
230
0
230
4
LAST 4Q
0
230
0
LAST 4Q
0
77
4
LAST 4Q
0
0.5UMSPDMEE
4
LAST 4Q
75K
63K
UNI3
UHF
SAC2NV
I2L
BICMOS2
4
RELIABILITY MONITOR -- ATMEL PROPRIETARY
3
High Temperature Operating Life
(sorted by TECHNOLOGY)
TECH
QTR
48 Hours
168 Hours
500 Hours
1K Hours
Device-Hours*
WAF
EFR PPM
FITS
154
154,000
117
0
51
0
0
292
1,534
292,000
2,220,284
34
28
0
0
92
15
0
0
1,267
6,423
1,366,040
7,687,464
64
67
0
0
11
2
REJ
SS
REJ
SS
REJ
SS
REJ
SS
4
LAST 4Q
0
154
0
154
0
154
0
35K
4
LAST 4Q
0
0
292
7,772
0
0
292
2,503
0
0
292
2,349
ATMEL
4
LAST 4Q
0
0
1,989
16,571
0
0
1,466
7,974
0
0
1,389
7,743
38.6 K
* The Device-Hours computation includes additional read-outs not detailed in the report.
RELIABILITY MONITOR -- ATMEL PROPRIETARY
4
Data Retention Bake
(sorted by FAMILY)
BU
QTR
168 Hours
500 Hours
1K Hours
REJ
SS
REJ
SS
REJ
SS
Device-Hours
AF
FITS
APG
4
LAST 4Q
0
0
0
0
0
0
0
0
0
0
0
0
0
0
117
117
ASIC
4
LAST 4Q
0
1
0
0
0
0
0
0
0
0
0
0
0
0
117
117
MEMORY
4
0
80
0
80
0
80
80,000
98
LAST 4Q
0
465
0
465
0
465
465,000
117
117
MCU
4
LAST 4Q
0
0
443
3,265
0
0
443
2,957
0
0
443
2,726
443,000
2,893,244
117
117
18
3
RFA
4
LAST 4Q
0
0
0
0
0
0
0
0
0
0
0
0
0
0
117
117
ATMEL
4
LAST 4Q
0
1
523
3,730
0
0
523
3,422
0
0
523
3,191
523,000
3,358,244
117
117
RELIABILITY MONITOR -- ATMEL PROPRIETARY
17
15
5
5
Data Retention Bake
(sorted by TECHNOLOGY)
TECH
QTR
168 Hours
500 Hours
1K Hours
REJ
SS
REJ
SS
REJ
SS
Device-Hours AF
FITS
63 K
4
LAST 4Q
0
0
80
465
0
0
80
465
0
0
80
465
80,000
465,000
117
117
98
17
58K
4
LAST 4Q
0
0
231
1,155
0
0
231
1,155
0
0
231
1,001
231,000
1,078,000
117
117
34
7
35K
4
LAST 4Q
0
0
212
2,110
0
0
212
1,802
0
0
212
1,725
212,000
1,815,244
117
117
37
4
ATMEL
4
LAST 4Q
0
0
523
3,730
0
0
523
3,422
0
0
523
3,191
523,000
3,358,244
117
117
15
2
RELIABILITY MONITOR -- ATMEL PROPRIETARY
6
Temperature Cycle
PACKAGE
QTR
100 Cycles
200 Cycles
500 Cycles
1K Cycles
% Defective
REJ
SS
REJ
SS
REJ
SS
REJ
SS
4
LAST 4Q
0
77
0
77
0
77
0
77
0.00%
4
LAST 4Q
0
154
0
154
0
154
0
154
0.00%
4
LAST 4Q
0
77
0
77
0
77
0
77
0.00%
MLF / QFN
4
LAST 4Q
0
0
80
439
0
0
80
439
0
0
80
439
0
0
80
433
0.00%
0.00%
SOIC
4
LAST 4Q
0
539
0
539
0
539
0
534
0.00%
TQFP
4
LAST 4Q
0
0
385
1,232
0
0
385
1,232
0
0
385
1,309
0
0
221
899
0.00%
0.00%
TSOP / VSOP
4
LAST 4Q
0
77
0
77
0
77
0
77
0.00%
TSSOP
4
LAST 4Q
0
0
77
358
0
0
77
358
0
0
77
358
0
0
77
281
0.00%
0.00%
ATMEL
4
LAST 4Q
0
0
542
2,953
0
0
542
2,953
0
0
542
3,030
0
0
378
2,532
0.00%
0.00%
CASON
BGA
LGA
RELIABILITY MONITOR -- ATMEL PROPRIETARY
7
Temperature Humidity Bias / HAST
Temperature Humidity Bias
HAST
PACKAGE
QTR
BGA
4
LAST 4Q
0
154
0
154
0
154
0
0
154,000
0.00%
MLF / QFN
4
LAST 4Q
0
0
0
283
0
0
0
283
0
0
0
283
0
0
80
157
160,000
597,000
0.00%
0.00%
SOIC
4
LAST 4Q
0
385
0
385
0
385
0
154
693,000
0.00%
TQFP
4
LAST 4Q
0
0
308
895
0
0
308
818
0
0
231
587
0
0
0
0
269,500
715,436
0.00%
0.00%
TSSOP
4
LAST 4Q
0
0
0
231
0
0
0
231
0
0
0
231
0
0
0
0
231,000
0.00%
4
LAST 4Q
0
0
308
1,948
0
0
308
1,871
0
0
231
1,640
0
0
80
542
429,500
2,852,436
0.00%
0.00%
ATMEL
168 Hours 500 Hours 1K Hours 100 Hours Device-Hours* % Defective
REJ SS REJ SS REJ SS REJ SS
RELIABILITY MONITOR -- ATMEL PROPRIETARY
8
Steam Pressure Pot
PACKAGE
QTR
96 Hours
168 Hours
240 Hours
% Defective
REJ
SS
REJ
SS
REJ
SS
4
LAST 4Q
0
77
0
77
0
77
0.0%
4
LAST 4Q
0
154
0
0
0
0
0.0%
4
LAST 4Q
0
77
0
77
0
77
0.0%
MLF / QFN
4
LAST 4Q
0
0
80
439
0
0
80
157
0
0
80
157
0.0%
0.0%
SOIC
4
LAST 4Q
0
539
0
154
0
154
0.0%
TQFP
4
LAST 4Q
0
0
385
1,343
0
0
0
0
0
0
0
0
0.0%
0.0%
TSOP / VSOP
4
LAST 4Q
0
77
0
77
0
77
0.0%
TSSOP
4
LAST 4Q
0
0
0
231
0
0
0
0
0
0
0
0
#DIV/0!
0.0%
ATMEL
4
LAST 4Q
0
0
465
2,937
0
0
80
542
0
0
80
542
0.00%
0.00%
CASON
BGA
LGA
RELIABILITY MONITOR -- ATMEL PROPRIETARY
9
Technology List
FAB
TECH
TYPE CMOS / BIP
LITHOGRAPHY [µm]
TYPICAL PRODUCTS / APPLICATIONS
5
15.3
EEPROM
1.8 - 2.3
sEEPROM
5
19.3
EEPROM
1.1
sEEPROM
5
19.5
Embedded Memory Configurator
1.0
Configurator
5
19.6
Embedded Memory
0.7
EEPROM, MC (Intel core), MC (AVR core)
PLD
5
19.7
EPLD
0.5
5
19.76
EPLD
0.5
PLD
5
19.8
CMOS
0.7
ASIC
5
19.8
Embedded Memory Configurator
0.7
5
19.9
Embedded Memory
0.7
sEEPROM, PEROM, EEPROM, Configurator
Smartcard, AVR, µC
5
25
BiCMOS
1.0
ASIC
5
26
Logic
0.7
ASIC
5
33.5
FLASH
0.5
EPROM
0.5
5
34
NTO
35
5
35.5
Embedded Memory Configurator
0.35
EEPROM, FLASH, MICRO, EPLD
5
37
EEPROM
0.35
FLASH, PEROM, DATA FLASH, sEEPROM
5
39
EEPROM
0.25
DATA FLASH
5
39.1
EEPROM
0.25
FLASH, DATA FLASH
BiCMOS
0.6
5
42
CSO
43
HNO
46
5
55
Logic
5
55.8
5
56
5
EPROM
ASIC
ASIC, TX RF
RFA
0.5
ASIC
CMOS
0.5
ASIC
Logic
0.35
ASIC
56.8
Embedded Memory
0.35
ASIC
7
57.0
CMOS
0.25
ASIC
7
57.5
CMOS
0.21
ASIC / RFA
7
58.0
CMOS
0.18
ASIC / RFA
SJO
61
CMOS
0.18
FLASH
SJO
63
HNO
75
RFA
HNO
6UH6+BICMOS
RFA
HNO
BCDMOS
HNO
BICMOS
HNO
BICMOS2
HNO
I²L
HNO
SCMOS3
HNO
6BD1
0.8
ASIC / RFA
ASIC / RFA
RFA
6IL4
2
SIGE2
6SG1
0.8
RFA
HNO
UHF
6UH6
0.5
ASIC / RFA
HNO
UNI3
NTO
Z86
CMOS Digital
0.8
SRAM,MICRO, VAN DLC
ASIC
RFA
RFA
NTO
Z91
CMOS Digital
0.6
SRAM, ASIC, MICRO
NTO
Z92
CMOS Digital
0.5
ASIC, MICRO,VAN DLC
CMOS + EPROM
0.5
OTP MICRO
NTO
Z94
HNO
Z95
RFA
HNO
Z96
RFA
RELIABILITY MONITOR -- ATMEL PROPRIETARY
10
Failure Rate Calculations
Failure Rate:
χ2
λ =
where,
λ
χ2
α
n
AF
DH
=
=
=
=
=
=
(1 −
α
100
, 2⋅n + 2 )
⋅ 109
2 ⋅ AF ⋅ DH
Failure Rate (FITS)
Failure Estimate
Confidence Level (60% or 90%)
Number of Failures
Overall Acceleration Factor (TAF x VAF)
Device Hours
Thermal Acceleration:
TAF
where,
TAF
EA
k
T
f
s
P
θJA
=
=
=
=
=
=
=
=
= e

ea 
1
1
⋅
−

k  Tf + ( Pf ⋅θ JAf ) Ts + ( Ps ⋅θ JAs ) 
Thermal Acceleration Factor
Activation Energy (eV)
Boltzman’s Constant (8.617 x 10-5 eV/°K)
Temperature (°K)
Field Conditions
Stress Conditions
Power Dissipation (W)
Thermal Resistance Coefficient - Junction to Ambient (°C/W)
Voltage Acceleration:
VAF
where,
VAF
Vs
Vn
Z
=
=
=
=
= eZ ⋅
[ VS − Vn ]
Voltage Acceleration Factor
Stress Voltage (V)
Nominal Voltage (V)
Voltage Acceleration Constant (typically, 0.5 < Z < 1.0)
RELIABILITY MONITOR -- ATMEL PROPRIETARY
11
Definitions
Data Retention Bake (DRB): This test is used to measure a device’s ability to
retain a charge for extended periods of time without applying voltage bias.
Stressing at high temperatures (150°C for plastic packages) accelerates any
discharge causing the memory state to change.
Failures In Time (FITS): This is the unit measure for expressing failure rates and
is identical to the expression PPM/K hours. For example, three failures out
of a million components tested for one thousand hours equates to 3 FITS.
High Temperature Operating Life (HTOL): The purpose of this test is to
accelerate thermally activated failure mechanisms through the use of high
temperatures (typically between 125°C and 150°C), increased voltage, and
dynamic bias conditions. Readouts at various time points are taken to
determine the Early Failure Rate (EFR) and Intrinsic Failure Rate (IFR). EFR
is expressed in defective parts per million (DPPM) and IFR is expressed in
Failures in Time (FITS at 55°C).
Highly Accelerated Stress Test (HAST): The purpose of this test is to evaluate a
plastic packaged component’s ability to withstand harsh environmental
conditions with extreme temperature and humidity levels. The parts are
stressed to high temperature (130°C) and relative humidity (85%RH)
conditions in a biased state to achieve maximum acceleration.
Steam Pressure Pot (SPP): The test is used to evaluate a plastic packaged
component’s ability to withstand severe conditions of pressure (15 psig),
temperature (121°C), and humidity (100%RH).
Temperature Cycle (TC): This test is used to measure a product’s sensitivity to
thermal stresses due to differences in expansion and contraction
characteristics of the die and mold compound by repeated alternating
temperature dwells between high and low temperature extremes.
Temperature Humidity Bias (THB): The purpose of this test (85°C/85%RH) is
identical to HAST. The only difference is that HAST accelerates THB by a
factor of 20:1 due to the increase in temperature during test.
RELIABILITY MONITOR -- ATMEL PROPRIETARY
12