System Configuration Model 2360 System (4000 Devices Maximum): The system (8 aging board positions and an optional 8
more board positions) consists of the following:
Oven:Lab Line Oven
Inside: 23w x 17.1d x 19.5h (in) 57.5wx42.8dx48.7h(cm)
Outside: 31.7w x 29.5d x 35.5h (in) 79w x 74d x 89h (cm)
LFE Mark IV Industries Controller
PID type temperature control
RTD sensor
Power Supply:PRA Model 512 powers the multiplexers and aging boards. Mounted on the rear of the oven. Optional:Model 513 power supply and slide rack kit. This increases the capability to a full 16 aging boards. Model 2361 System (2000 Devices Maximum): The system (4 aging board positions and an optional 4
more board positions) consists of the following: Oven:Lab Line Oven Inside: 13w x 17.1d x 19.5h (in)
32.5wx42.8dx48.7h(cm)
Outside: 21.6w x 25.3d x 35.5h (in)
54w x 63.1d x 88.7h (cm)
LFE Mark IV Industries Controller
PID type temperature control
RTD sensor Power Supply:PRA Model 514 powers the multiplexers and aging boards. Mounted on the rear of the oven. Optional:Model 515 power supply and slide rack kit. This increases the capability to a full 8 aging boards. Model 2362 System (254 or 508 Devices Maximum) The system (1 ro 2 aging board positions) and a customer
supplied oven consists of the following: Power Supply:PRA for one or two aging positions. Bench Mounted on the rear of the oven. Model 2363 System (4000 Devices Maximum): The system (8 aging board positions) which are in one
high air flow oven. An optional second oven can be added
to reach the full 4000 DUTs. The system consists of the
following: Oven:Blue M Oven LFE Mark IV Industries Controller
PID type temperature control
RTD sensor Power Supply:Mounted on the rear of the oven. AllSystems--- Controlling PC: Windows 95/98 PC with COM port.
Counter:HP53181, HP53132, or Guide Technology GT200.
Data reduction software
Cables
Manuals Aging boards: As needed. Installation requirements: 195 to 240VAC, 50/60Hz (2 mains cords) Oven power: 8 Amps maximum
DUT Power: 10 Amps maximum 95 to 125VAC, 50/60Hz (2 mains cords) Oven power: 16 Amps maximum
DUT Power: 20 Amps maximum Frequency Standard: 10MHz 150mV RMS minimum Sine wave or 450mV PP minimum square wave 500ohm load.
Stability of better than 1 ppb aging per year. NOTE: PRA Inc. reserves the right to make changes to the product contained in this data sheet in order to improve the design or performance
and to supply the best possible product. PRA Inc. reserves the right to make these changes without notice. Revised 9/1/02
The user can program the counter gate time (resolution) and how often to read a DUT. Each position in the
chamber can have a unique test sequence. Assuming 10ppb resolution is desired, a read time of
0.1S per device would be needed. The test time for a fully loaded system would be approximately 10 minutes. The system permits a mixture of aging sequences.
Some parts can be measured hourly, other parts can be
measured monthly. These sequences are defined by the
system user. Any measurement interval greater than the
required measurement time is permitted. Test Time and Test Sequences High Frequency Aging Board: The board tests 254crystals with a fundamental frequency range of 70Mhz to
over 225MHz. The crystals are operated in a wide band untuned oscillator
TTL/HCMOS DIP/DIL Clock Oscillator AgingBoard:
254 Full Size or Half Size Devices to test are mounted in sockets on the burn in board. The board permits testing both ECL, TTL and HCMOS parts. The upper frequency
range is over 1 GHz. On the PCB are buffer circuits so the DUTs do not
drive long leads. The output signal is prescaled to improve
isolation and measurement accuracy.
QPL Type TTL/HCMOS DIP/DIL Clock Oscillator Aging Board: The board permits testing126 Full Size orHalf Size devices. The board can be set to have standard TTL or HCMOS loads. The loads are hard soldered on the boards.
The upper frequency range is 100MHz. 40 Pin LCC Aging Board: The 98 devices to test aremounted in sockets on the burn in board. The board permits
setting standard TTL or HCMOS loads. The loads are hard
soldered on the boards. The upper frequency range is
100MHz. SMD Aging Boards: Contact us about your specific needs.
Oven slide rack extended
with Wide Band Crystal
Aging boards installed.
The system can accept several types of aging boards.
Any mixture of the board types is allowed. Each board is
powered by: 5 volt 7 Amp supply
+12 volt 7 Amp supply (optional)
-12 volt 0.6 Amp supply (optional)
The aging board is held in the slide out rack assembly.
When the aging board is plugged into the rack; the aging
board receives power, the computer control signal and outputs the selected DUT signal. Device Aging Boards Wide Band Universal Crystal Oscillator Aging Board: Devices to test are mounted in sockets on the burn-in board.
Up to 254 crystals per board. TO5, HC45, HC49, UM1
packages.The National Semiconductor wide band clock oscilla-
tor circuit , part CGS3311, is capable of properly operating to
about 80MHz fundamental crystals. The circuit is a wide band device and normally will
operate the crystal on the fundamental. In some cases, the
overtone mode may be lower in resistance and the oscillator
will operate on the harmonic. Drive level typically 150uW. Model 2363 • There are different aging boards for various applications.
• The system is controlled by software supplied as part of the
system. All test parameters are entered through menu driven
programs.
• All entered test procedures are stored on the system
controller’s disk. To measure an already defined part re
quires the operator to select the desired specification from a
menu and then testing begins. All equipment setup is automatic. Aging oven with the door open. Each
slide rack has an air
flow baffle to isolate the other aging
boards when the door is open or the slide
is out.
• The system can be loaded with may different groups of
devices. Groups of devices can be loaded/unloaded at any
time and the status of the other groups in the system is
unaffected.
• The aging status of any crystal can be displayed or printed
at any time. The data can be in graphical or tabular form.
• The system is network compatible.
• High speed frequency counter that mounts in the PC. Gives
1 part per billion (ppb) resolution for a 1 second measurement
time.
• Fail Safe thermostat sensor for the chamber. The sensor shuts
down all power supplies to the aging boards if the chamber
fails or exceeds a user set temperature.
• Each aging board has AC cut crystals placed in 2 positions.
These crystals are used as quartz thermometers to measure the change in aging temperature. The aging temperature can
be logged as part of the data. The data reduction software permits analysis of the
short term temperature changes on the measured frequency
data. The effect of temperature change can be removed from
the plots and printouts of the data.
Equivalent chamber stabilities of 0.0025oC have been achieved. • Each aging board contains the
needed multiplex circuitry to permit
selecting only 1 DUT on the PCB to
measure. The on-board multiplexing
is designed to minimize inter DUT
signal radiation so precise measure
ments can be made.
• The aging boards may be partially withdrawn from the system to remove
or add DUT’s. The power supply
connections are retained so that ag
ing of other devices can continue
uninterrupted. The slide out rack
design also minimizes heat loss to the
racks that are not extended.
Model 2361 The 2360 Series Aging System permits aging crystals and clock oscillators at a user set temperature while the devices
are oscillating. The system consists of: • Rectangular oven that has up to 8 slide out racks. Each slide
out rack holds 2 aging boards.
• PRA Power Supply and Multiplexer. Provides power to the
aging boards and provides the interface between the control-
ling PC and all of the aging boards. The PRA Power Supply Multiplexer provides a
clock and data signal to the aging board. The computer sends
a data string serially to the card to select the one oscillator System Features Model 2362 position on the card to be read. This signal is sent via 50 ohm
coaxial cable to the Model 512 and then to the frequency
counter.
• (Optional) PRA Add On Power Supply. Required to operate
8 aging board positions, permits full 16 board operation.
• The system is controlled by a PC.
2360 Series Quartz Crystal - Oscillator Aging and Aging Measurement Test System Devices are operating while aging
Frequency Measurement made while aging • Up to 4000 devices simultaneously in a Model 2360 Oven
• Up to 2000 devices simultaneously in a Model 2361 Oven
• Up to 500 devices simultaneously in a user supplied oven for the Model 2362
• Up to 4000 devices in a dual high velocity air flow Model 2363 oven
• Devices placed in aging boards
• Measurement cycles and rate of reading are set by the user
• Frequency change versus time can be plotted
• Aging temperature range: 50oC to 125oC • System controlled by a P.C. Model 2360
