Test Contactor

In recent years, with the mass production of a wide range of electronic products in the industrial equipment field, the demand for high-current test using power electronics devices used in those products is increasing. In a high-current test environment, the risk of low yield exponentially increases due to short Pogo Pin life, such as burning the tip of Pogo pin and the spring, reduction of the spring pressure, and discoloration of the tube, etc. Yokowo offers contactors that can maintain consistent performance in these demanding test environments.

Description	Equipment
	Customer Production Site Test	Yokowo Testing
Mechanical Stress	Yes	Yes
Electrical Stress	Yes	Yes
Thermal Stress	Yes	Yes
Test Current / On time	Adjustable	Adjustable
Test temp(C)	Adjustable	Adjustable
Contact resistance Check at every insertion	Yes	Yes
Force Check at every insertion	No	No

High CCC testing machine

As IC packages require to be used at harsh environment ,need of high temperature testing is also increasing. One of the requirement for high temperature testing is to keep the socket temperature at certain range, in order not to stop running machine by reaching out to temperature limit.

Our heat dissipation socket consists of center ground block which will act ground for heat and also ground for signal .
Custom manual lid that will be effective for heat dissipation is also available upon customer’s request.
Depending on the package and requirement, Yokowo will choose the best socket body material and offer a best solution which will best fit to customer needs .

Photos are for reference only. Actual design will vary by customer specifications and test environment.

In order to reduce the cost, time, and man-hours required for testing, Yokowo’s strip sockets are used to conduct room/high-temperature testing in a matrix of Strip frames without the need to singulate the devices.
To prevent multi-site socket warpage, our company provides an optimal test environment that meets your testing requirements, including high current measurements, Kelvin/Dual contacts and flexible pin assignment, as well as simulations to ensure safety.
In addition, the high-precision processing technology that makes these products a reality also ensures a reliable quality environment for our customers.

Photos are for reference only. Actual design will vary by customer specifications and test environment.

The Kelvin connection, which is a 4-terminal connection, is often used to measure electrical resistance more accurately when the measured object has a relatively low resistance value. In order to make contact with device that is becoming increasingly narrow-pitched with the need for 2-terminal Force (current path) and 2-terminal Sense (voltage measurement) wires, Yokowo has minimized the gap between 2 probes and designed probes to withstand lateral loads, providing a safe environment for electrical and logistical evaluation.