3/29/2010
PRODUCT RELIABILITY REPORT
FOR
DS3644, Rev A3
Maxim Integrated Products
4401 South Beltwood Parkway
Dallas, TX 75244-3292
Prepared by:
Don Lipps
Manager, Reliability Engineering
Maxim Integrated Products
4401 South Beltwood Pkwy.
Dallas, TX 75244-3292
Email: don.lipps@maxim-ic.com
ph: 972-371-3739
fax: 972-371-6016
Rev B, 1/3/08
Conclusion:
The following qualification successfully meets the quality and reliability standards required of all
Maxim products:
DS3644, Rev A3
In addition, Maxim'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’s 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
Rev B, 1/3/08
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):
103071
FITS:
1.1
DEVICE HOURS:
827321919
FAILS:
0
Only data from Operating Life or similar stresses are used for this calculation.
The parameters used to calculate this failure rate are as follows:
Cf: 60%
Ea: 0.7
B: 0
Tu: 25
°C
Vu: 3.6
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. Bold Product Number denotes specific product data.
Device Information:
Process:
Passivation:
Die Size:
Number of Transistors:
Interconnect:
Gate Oxide Thickness:
SA E35X-0.5um, 5V CMOS with embedded Array EEPROM, embedded
RSE EEPROM, 18V CMOS, VNPN, P2-P1 Cap, LVMOSCAP,
HVMOSCAP, Varactor Cap, CrSi R's & Laser Fuses, 3LM.
TEOS Oxide-Nitride Passivation
187 x 155
142536
Aluminum / 0.5% Copper
120 Å
ESD HBM
DESCRIPTION
DATE CODE/PRODUCT/LOT
CONDITION
ESD SENSITIVITY
1004
DS3644
WS046549D JESD22-A114 HBM 500
VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
1004
DS3644
WS046549D JESD22-A114 HBM 1000
VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
1004
DS3644
WS046549D JESD22-A114 HBM 2000
VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
1004
DS3644
WS046549D JESD22-A114 HBM 4000
VOLTS
1
PUL'S
3
0
ESD SENSITIVITY
1004
DS3644
WS046549D JESD22-A114 HBM 8000
VOLTS
1
PUL'S
3
3
READPOIN
QTY FAILS
FA#
No FA
3
Total:
LATCH-UP
DESCRIPTION
DATE CODE/PRODUCT/LOT
LATCH-UP I
1004
LATCH-UP V
1004
CONDITION
READPOIN
DS3644
WS046549D JESD78A, I-TEST 125C
6
0
DS3644
WS046549D JESD78A, V-SUPPLY
TEST 125C
6
0
Total:
Rev B, 1/3/08
QTY FAILS
0
FA#
OPERATING LIFE
DESCRIPTION
DATE CODE/PRODUCT/LOT
CONDITION
HIGH TEMP OP LIFE
0839
DS2784
WJ942986T 125C, 4.6 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0843
DS2784
WJ941766O 125C, 4.6 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0848
DS2784
WJ943239LC 125C, 4.6 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0914
DS2780
WJ944804A 125C, 5.5 VOLTS
1000 HRS
77
0
HIGH TEMP OP LIFE
0916
DS2784
WJ943240IC 125C, 5.5 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0916
DS2784
WJ945481A 125C, 5.5 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0922
DS36A92
WJ946542A 125C, 3.6 VOLTS
192
HRS
45
0
HIGH TEMP OP LIFE
0932
MAX17043
WJ946441P 125C, 4.5V (PSA) & 9.2V
(PSB)
192
HRS
45
0
HIGH TEMP OP LIFE
0933
DS1873
QJ917612BC 125C, 4.2 VOLTS
192
HRS
77
0
HIGH TEMP OP LIFE
0937
DS2784
WJ046898JC 125C, 5.5 V (PSA) & 15.0 1000 HRS
V (PSB)
77
0
HIGH TEMP OP LIFE
0940
DS2784
WJ048759A 125C, 5.5 V (PSA) & 15.0 1000 HRS
V (PSB)
80
0
HIGH TEMP OP LIFE
0946
DS1876
WJ048840A 125C, 4.2 VOLTS
192
HRS
77
0
HIGH TEMP OP LIFE
0948
DS1091L
WJ946344E 150C, 3.6 VOLTS
408
HRS
45
0
HIGH TEMP OP LIFE
0948
DS1091L
WJ946344E 150C, 3.6 VOLTS
408
HRS
45
0
HIGH TEMP OP LIFE
0951
DS2784
WJ049559A 125C, 5.5 V (PSA) & 15.0 1000 HRS
V (PSB)
80
0
HIGH TEMP OP LIFE
1004
DS3644
WS046549D 125C, 3.6V (PSA) & 3.3V
(PSB)
45
0
READPOIN
192
HRS
Total:
FAILURE RATE:
Rev B, 1/3/08
MTTF (YRS):
103071
FITS:
1.1
DEVICE HOURS:
827321919
FAILS:
0
QTY FAILS
0
FA#