-
E-mail
jack.shi@scitest.cn
-
Phone
13381923051
-
Address
Room 1001, Building 32, Lane 1051, Shenbin Road, Shanghai
Product Categories
Shanghai Jiulichuan Trading Co., Ltd
Phase12 Thermal Resistance Tester
NegotiableUpdate on 04/22
- Model
- Nature of the Manufacturer
- Producers
- Product Category
- Place of Origin
Overview
The Phase12 thermal resistance tester is produced in the United States and complies with US military standards and JEDEC standards $r $nAnalysis was founded in 1983 and is located in the north of Boston. It is an international design and manufacturing company for reliability testing of electronic packaging devices. Founder John W. Sofia is a Ph.D. from MIT and an expert in proposing solder joint reliability, thermal resistance analysis, and thermal conductivity theory I have published many papers on thermal resistance testing and analysis, thermal conductivity, and solder joint reliability There are independent laboratories in the United States that provide technical support
Product Details
Mainly used for testing diodes, transistors, linear regulators, thyristors,LED，MOSFET，MESFET ,IGBT，ICThermal resistance testing and analysis of evenly distributed power devices.
IIPhase12Function of:
PHASE12Can be testedRJ，Rjc，Rjb RjlThe thermal resistance (testing principle conforms to)JEDEC51-1Defined dynamic and static testing methods
 |
image one
Phase12The data obtained from the test will generate the above figure. The number in the upper left corner indicates that this device has four levels（In order to clarifyBy solving different levels, this diagram can be transformed into Figure 3）The first one is the impedance value of the adhesive layer under the chip, followed byTauIt's doneThe testing time and the sum of the impedance values at the four levels are the thermal resistance values of this device. And every turning point indicates that heat has entered a new phase
The hierarchy. The data at each level will indicate the quality of heat dissipation from different layers of the device, which can be beneficial for similar products from different manufacturersletWe choose manufacturers with very good thermal resistance values; At the same time, it can also detect the differences in quality between different batches of products from the same manufacturer, thusEvaluate the stability of the manufacturer's production process.
1）Transient impedance(Thermal Impedance)Testing can obtain the transient impedance from the beginning of heating to the point where the junction temperature reaches stabilitydata See the figure above
2）Steady-state thermal resistance(Thermal Resistance)Testing of various parameters, including:Rja,Rjb,Rjc,Rjl,When the device is given a certain amount of workAfter generating current. The heat continuously diffuses outward and eventually reaches thermal equilibrium, resulting in the steady-state thermal resistance value. What is tested before reaching thermal equilibrium is thermal impedance.
3）Impedance and thermal resistance values can be obtained when testing with square waves of different duty cycles.
|
image two
