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Continuous measurement of micro resistance insolder joint area and connector contact area. Efficient evaluation of the reliability of connections

The Conductor Resistance Evaluation System enables continuous

measurement of resistance changes under high and low temperature cycle.

Automatic measurement, data storage and processing are operated systematically with a PC.

The system realizes accurate and effective contact reliability evaluation.

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MEASUREMENT EVALUATION SYSTEMS

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We have always earned our customers’ confidenceAMR is equipped with highly reliablemeasurement equipment and anammeter for micro resistance meter thatare designed to meet internationalstandards in order to obtain mostreliable measurement data. We offer acalibration service to maintain theequipment’s accuracy (ISO / IEC 17025compliant).

We offer two currentapplications, DC and ACWe offer two micro electric currentapplications, the DC (AMR-PD) and theAC (AMR-PA), which are used to applycurrent to specimens when measuringthe conductor resistance.

Measurement of a wide rangeof resistance from 10－3 to 106ΩConductor resistance values rangingfrom 10－3 to 106Ω(AMR-PD) and from10－3 to 104Ω(AMR-PA) can be measuredaccurately at the tip of a measuringcable, using a four terminal method.

Multi-channel continuousmeasurement dramaticallyimproves the work efficiencyChannels can be added in 40-channelblocks from the standard 40 channels upto 280 channels (optional) depending onthe tests and the number of chambers tobe connected.

Utility

Measurement equipment (Agilent Technologies)

AMR

Using the international standard traceable precision instrumentguarantees most accurate and compatible measurement data.

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Connection unitInstalling the connection unit facilitatesthe measurement cable connection. Theconnection unit can be installed in front ofthe rack or on the left or right side of therack according to the work environment.

Cable that has excellent heat-and noise-resistancecharacteristicsA flat cable made of Teflon is used. Theexcellent heat- and noise-resistancecharacteristics of the Teflon flat cableenable accurate measurement of micro-resistance. The end of the cable isdesigned to facilitate the connection to aspecimen.

Global environmental problemsComponents are mounted by lead-freesoldering. In addition, power consumptionis reduced by 24% (in comparison withthe previous model) in consideration ofglobal environmental problems. *except for purchased items such as PCs andmeasuring instruments.

Utility

Mesurement cable (Chamber sold separately)

Connection unit

System rack

Multifunction rack that pursues ease of use improves the workability.

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Utility

Interaction with theenvironmental test chamberAMR can connect up to three environmentaltest chambers for testing. Interactionwith the environmental test chamberenables temperature and humiditymonitoring, management of the timeschedule, and displays an alarm when afailure is detected.

Real-time monitoring oftemperature and humidityAMR monitors and records the temp.and humid. inside the environmental testchamber. Data is recorded simultaneouslywith the measurement by themeasurement system. The statisticsprocessing software displays therecorded data in synchronization withthe data of the resistance value.

Safety design guaranteed byabnormality detectionIf a problem occurs with the environmenttest equipment or AMR, the test will stop.Resetting will resume the test from whereit stopped.

Remote processing of thetest data (optional)LAN-compatible software enablesremote test checking and data processing,such as from a remote office. Additionally, we offer software licensesaccording to the number of users so thatmultiple PC monitoring is possible.

Function Interaction with the thermal shock chamber (TSA Series)

Temperature monitoring

Reads the temperature with respect to each measurement by the measuring equipment. Finally transfers data to the CSV file.

Reads the cycle counting of the chamber and saves the number of failure occurrences.

AMR starts the test. Test automatically starts when the chamber is ready for test.

When AMR halts the test, automatically halts the operations of the chamber and AMR after being exposed to high temperature.

Automatically resumes the halted cycle of the test as it is. The halt history is saved in the measurement data.

Test automatically ends when the test completion condition is met.

Measures temperature uniformity in the chamber up to 16 channels and saves data in the CSV file on the measurement basis.

When a failure occurs in the chamber or the measuring equipment fails to operate properly, the test automatically stops.

Checks the obtained temperature data against the data of resistance values based on the number of cycles.

Cycle count

Start of the test

Halt of the test

Resumption of the test

Completion of the test

Work temperature monitoring

Chamber failure detection

Data processing

AMRWindowsR

An interaction with the Thermal shock chamber

Tests simplified by interaction of the measurement system with various environmental test chambers.

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Failure recognition using the absolute valueThe measured date obtained atmeasurement intervals is evaluatedusing the preset absolute value. It willdetect small change of conductiveresistance change due to micro-cracksup to complete open.You can set the absolute value in hotcondition and cold condition to haveseparate recognition available both sideof temperature. AMR will terminate thetest on the channel that failure oncerecognized. (It can be set to resume thetest too.)

Failure recognition using the change rate (%)This method can be used to detect smallchange of conductive resistance of BGAand CSP. It will compare initial value atthe start point of the test and using %change to recognize the failure. It canbe set on both side of hot and coldconditions.

Two failure recognition methods are available to detect the failure in conductive resistance change at inter-connects.

Evaluation

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DC Measurement (AMR-PD)Using DC current resistance to measuresmall voltage change and detect up to1M ohms of resistance. It is useful toobserve large change of conductiveresistance such as Daisy Chain of BGAin semiconductor applications.

AC Measurement (AMR-PA)Using AC micro current to measuresmall voltage change without affectedby thermal electromotive force. It isuseful to observe the change ofconductive resistance in contactresistance evaluations.

DC or AC measurement can be selected according to your test requirements.

Evaluation

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Graphic display Cursor function

Quick confirmation of measurement dataand channel number by cursor function ongraphic display.

Weibull Analysis (Optional)

Data-processing software (with astatistical processing function) enablesWeibull analysis of test data, as well asthe plotting of normal probability andlogarithmic-normal probability.

Main window*・Test monitoring

・Real time display of the resistance value, temperatureinside the chamber, channel on which a failure occurs

・Auto link to the data processing software

・Test control (start, stop, pause, and restart)

* The picture above shows AMR-280-PD.

Test condition registration Registration of the test conditions

Graph can be arranged by choosingchannel display, display setting, andcursor display.Graphs can be copied on a clipboard tobe applied onto another software.

The sample graph displays resistancevalue with temperature on thermalshock chamber at the same time.

SOFTWARE

Duration and cycle of a test andmeasurement, measurement voltage,stress-application voltage, and limit valuesare saved as a test condition file. Multipletest conditions can be saved dependingon the specimen and test conditions.

On this window, you select a module,input the data f i le name, set theinteracting chamber, output test data,input presence or absence of the leak-touch behavior mode and comment,select test channels, and specify the testcondition. (Select a test condition from thetest condition file.)

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SYSTEM BLOCK DIAGRAM

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ACCESSORIESMODEL

　　

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User’s manual System controller Uninterruptable power supply Micro-resistance measurement unit Setup CD GPIB board PPI board

SPECIFICATIONS

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OPTIONS

Specimen temperature monitor

Specimen temperature monitormeasures the surface temperature ofthe specimen and saves the specimensurface temperature and the measureddata simultaneously. The followingthree types are available.・4 point measurement type・8 point measurement type・16 point measurement type

Emergency stop switch

Stops the system immediately.

1m-extension of the non heat-resistant measurement cable

We elongate the cable that connects themeasurement unit to the connectingunit. (Selectable at the time of purchase)

3m-extention of the non heat-resistant measurement cable

We extend the cable according to theinstallation conditions for the equipment.* Data correction by our field service

agent is necessary after the initial shipment and in the case where the lengths of all cables are changed.

Heat-resistant Teflon cable

Identical to the heat-resistant Tefloncable in the standard accessories・1.5m

Color measurement cable(150 heat-resistance)

Cables whose color varies dependingon the channel・1.5m

LAN-compatible software

LAN-compatible software enablesremote test checking and dataprocessing, such as from a remoteoffice. * License for multiple PC monitoring

requires an additional cost.

Data processing software (with statistical processing software)

Weibull analysis is installed in additionto the standard statistical processingsoftware.

Additional channel (40 channel basis)

The channels can be added accordingto the capacity of the system (280channels at maximum on 40 channelbasis). Communication cable

E-BUS 5, 10m

1m-extention of the heat-resistant flat cable

We elongate the cable that connectsthe connecting unit to a specimen.(Selectable at the time of purchase)

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VARIOUS ENVIRONMENTAL TEST CHAMBERS〈SOLD SEPARATELY〉

TSA series is the series that reduces the temperaturerecovery time, temperature heat-up time, and temperaturepull-down time. TSA series has HFC refrigerant and atouch-panel that facilitates operation setting changes.TSA Series is the environment-friendly series.

TSD-100 is a thermal shock chamber with two zones thatconform to Japanese and overseas test standards such asMIL-STD-883, JIS C 0025 and JASO-D001. Withexcellent temperature distribution performance, thischamber applies uniform temperature stress to specimens.Furthermore, by monitoring specimen temperature withthe STT function, this chamber starts counting exposuretime and switches to the next step immediately after thespecimen temperature reaches a preset value, thus enablinghighly accurate tests. In the temperature range between60 and 150, this chamber has a short return time of 15minutes, resulting in reduction of total test time. Thischamber can be used for a variety of activities, fromresearch and development to inspection and production.

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Thermal Shock Chamber TSA Series

Thermal Shock Chamber TSD-100

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Tel : 1-616-896-6100 Fax : 1-616-896-6150

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