Hitachi AP1 Data Book page 28

4-bit single-chip microcomputer
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RELIABILITY TEST DATA OF M I C R ' ) C O M P U T E R - - - - - - - - - - - - - - - - - -
2.2 Chip Structure
density.
The HMCS40 family is produced in low power CMOS technol-
ogy. The Si-gate process is used because of high reliability and high
Chip structure and basic circuitry are shown in Figure 2.
Si·Gate CMOS
SiO.
Source
Drain
FET2
P<hannel
EMOS
N<hennel
EMOS
Figure 2 Chip Structure and Basic Circuit
3. QUALITV QUALIFICATION AND EVALUATION
3.1 Reliability Test Methods
Reliability test methods shown in Table 2 are used to qualify and evaluate the new products and new process.
Table 2 Reliability Test Methods
Test Items
Test Condition
MIL·STD·883B Method No.
Operating Life Test
12SoC,1000hr
looS,2
High Temp, Storage
Tstg max, 1000hr
1.008,1
Low Temp, Storage
Tstg min, l000hr
Steady State Humidity
6SoC 9S%RH, l000hr
Steady State
H~midity
Biased
8SoC 8S%RH, l000hr
Temperature Cycling
-SSoC - 150°C, 10 cycles
1010,4
Temperature Cycling
-20°C"" 12 S oC,'2oo cycles
Thermal Shock
O°C"" 100°C, 100 cycles
1011,3
Soldering Heat
260°C, 10 sec
Mechanical Shock
lSooo 0.5 msec, 3 times/X, V, Z
2002,2
Vibration Fatigue
60Hz 200, 32hrs/X, V, Z
2005,1
Variable Frequency
2o-2000Hz 200, 4 minIX, V, Z
2007,1
Constant Acceleration
20000G,1 min/X, V, Z
2001,2
Lead Integrity (DIP)
225gr, 90° 3 times
2004.3
Lead Integrity (FPP)
22Sgr,900 1 time
2004
26

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