Product Report

08/16/2005
PRODUCT RELIABILITY REPORT
FOR
DS1339, Rev A2
Dallas Semiconductor
4401 South Beltwood Parkway
Dallas, TX 75244-3292
Prepared by:
Ken Wendel
Reliability Engineering Manager
Dallas Semiconductor
4401 South Beltwood Pkwy.
Dallas, TX 75244-3292
Email : [email protected]
ph: 972-371-3726
fax: 972-371-6016
mbl: 214-435-6610
Conclusion:
The following qualification successfully meets the quality and reliability standards required of all Dallas
Semiconductor products:
DS1339, Rev A2
In addition, Dallas Semiconductor's continuous reliability monitor program ensures that all outgoing
product will continue to meet Maxim's quality and reliability standards. The current status of the
reliability monitor program can be viewed at http://www.maxim-ic.com/TechSupport /dsreliability.html.
Device Description:
A description of this device can be found in the product data sheet. You can find the product data
sheet at http://dbserv.maxim-ic.com/l_datasheet3.cfm.
Reliability Derating:
The Arrhenius model will be used to determine the acceleration factor for failure mechanisms that
are temperature accelerated.
AfT = exp((Ea/k)*(1/Tu - 1/Ts)) = tu/ts
AfT = Acceleration factor due to Temperature
tu = Time at use temperature (e.g. 55°C)
ts = Time at stress temperature (e.g. 125°C)
k = Boltzmann‚Äôs Constant (8.617 x 10-5 eV/°K)
Tu = Temperature at Use (°K)
Ts = Temperature at Stress (°K)
Ea = Activation Energy (e.g. 0.7 ev)
The activation energy of the failure mechanism is derived from either internal studies or industry
accepted standards, or activation energy of 0.7ev will be used whenever actual failure mechanisms
or their activation energies are unknown. All deratings will be done from the stress ambient
temperature to the use ambient temperature.
An exponential model will be used to determine the acceleration factor for failure mechanisms,
which are voltage accelerated.
AfV = exp(B*(Vs - Vu))
AfV = Acceleration factor due to Voltage
Vs = Stress Voltage (e.g. 7.0 volts)
Vu = Maximum Operating Voltage (e.g. 5.5 volts)
B = Constant related to failure mechanism type (e.g. 1.0, 2.4, 2.7, etc.)
The Constant, B, related to the failure mechanism is derived from either internal studies or industry
accepted standards, or a B of 1.0 will be used whenever actual failure mechanisms or their B are
unknown. All deratings will be done from the stress voltage to the maximum operating voltage.
Failure rate data from the operating life test is reported using a Chi-Squared statistical model at the
60% or 90% confidence level (Cf).
The failure rate, Fr, is related to the acceleration during life test by:
Fr = X/(ts * AfV * AfT * N * 2)
X = Chi-Sq statistical upper limit
N = Life test sample size
Failure Rates are reported in FITs (Failures in Time) or MTTF (Mean Time To Failure). The FIT
rate is related to MTTF by:
MTTF = 1/Fr
NOTE: MTTF is frequently used interchangeably with MTBF.
The calculated failure rate for this device/process is:
FAILURE RATE:
MTTF (YRS): 6451
FITS:
17.7
The parameters used to calculate this failure rate are as follows:
Cf: 60%
Ea: 0.7
B: 0
Tu: 55
°C
Vu: 5.5
Volts
The reliability data follows. At the start of this data is the device information. The next section is the
detailed reliability data for each stress. The reliability data section includes the latest data available
and may contain some generic data. "*" after DATE CODE denotes specific product data.
Device Information:
Process:
Passivation:
Die Size:
Number of Transistors:
Interconnect:
Gate Oxide Thickness:
E6H-2P2M,HPVt,TCN1 PBL:GOI
Passivation w/Nov TEOS Oxide-Nitride
58 x 84
12000
Aluminum / 1% Silicon / 0.5% Copper
150 Å
ELECTRICAL CHARACTERIZATION
DESCRIPTION
DATE CODE CONDITION
READPOINT
QTY FAILS
ESD SENSITIVITY
0224 *
EOS/ESD S5.1 HBM 500 VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
0224 *
EOS/ESD S5.1 HBM 1000 VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
0224 *
EOS/ESD S5.1 HBM 2000 VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
0224 *
EOS/ESD S5.1 HBM 4000 VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
0224 *
EOS/ESD S5.1 HBM 8000 VOLTS
1
PUL'S
3
0
LATCH-UP
0224 *
JESD78, I-TEST 125C
3
0
LATCH-UP
0224 *
JESD78, Vsupply TEST 125C
3
0
FA#
0
Total:
OPERATING LIFE
DESCRIPTION
DATE CODE CONDITION
READPOINT
QTY FAILS
INFANT LIFE
9918
125C, 6.0 VOLTS
48
HRS
746
0
HIGH VOLTAGE LIFE
9935
125C, 6.0 VOLTS
1000 HRS
120
0
INFANT LIFE
0027
125C, 5.0 VOLTS
48
HRS
315
0
HIGH VOLTAGE LIFE
0027
125C, 5.0 VOLTS
1000 HRS
149
0
HIGH VOLTAGE LIFE
0047
125C, 6.0 VOLTS
1000 HRS
150
0
HIGH VOLTAGE LIFE
0106
125C, 6.0 VOLTS
192
HRS
77
0
HIGH VOLTAGE LIFE
0145
125C, 6.0 VOLTS
240
HRS
77
0
HIGH VOLTAGE LIFE
0210
125C, 6.0 VOLTS
1000 HRS
80
0
FA#
HIGH VOLTAGE LIFE
0224 *
125C, 6.0 VOLTS
1000 HRS
80
0
HIGH VOLTAGE LIFE
0224 *
125C, 6.0 VOLTS
1000 HRS
80
0
HIGH VOLTAGE LIFE
0227
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0227
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0227
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0238
125C, 6.0 VOLTS
1000 HRS
45
2 FREQUE
NCY
HIGH VOLTAGE LIFE
0241
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0247
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0302
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0306
125C, 4.9 V (PSA) & 3.6 V (PSB)
1000 HRS
45
0
HIGH VOLTAGE LIFE
0307
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0308
125C, 6.0 VOLTS
1000 HRS
77
0
HIGH VOLTAGE LIFE
0310
125C, 6.0 VOLTS
1000 HRS
80
0
HIGH VOLTAGE LIFE
0310
125C, 6.0 VOLTS
1000 HRS
45
0
HIGH VOLTAGE LIFE
0310
125C, 6.0 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0311
125C, 3.5 VOLTS
1000 HRS
77
0
HIGH TEMP OP LIFE
0312
125C, 3.3 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0318
125C, 5.5 VOLTS
1000 HRS
77
0
HIGH TEMP OP LIFE
0324
125C, 5.25 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0403
125C, 3.6 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0403
125C, 5.5 VOLTS
1000 HRS
77
0
HIGH TEMP OP LIFE
0412
125C, 3.5 VOLTS
1000 HRS
64
0
HIGH TEMP OP LIFE
0421
125C, 5.5 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0421
125C, 5.5 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0422
125C, 5.5 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0424
125C, 5.5 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0434
85 C, 3.3 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0440
85 C, 3.3 VOLTS
1000 HRS
45
0
HIGH TEMP OP LIFE
0440
85 C, 3.3 VOLTS
1000 HRS
45
0
HIGH VOLTAGE LIFE
0530
125C, 4.9 V (PSA) & 3.6 V (PSB)
192
45
HRS
Total:
FAILURE RATE:
MTTF (YRS): 6451
FITS:
17.7
2