Using burn-in and test sockets to address issues in product assessment,
electrical properties, and reliability testing of various devices.

Socket for Power Device

Supported Packages

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The burn-in socket for Power device is an inexpensive socket made of molded method.

In order to achieve high contact reliability, there is a two-point contact solution that sandwich the tip of package lead. There are also bottom contact pin options that enable to contact multiple pin for high current solutions. We can also provide that Heatsink option for heat dissipation purpose.

Points

For power device sockets, it is important to select based on the usage and environment.
We introduce the key points to determine the specifications of the Power device for burn-in usage.

Point#1

Select either open top or clamshell based on method of setting the device.

Auto loading machine → Open top
Manual operation → Clam Shell

Point#2

Select the mounting method on the board by either focusing on contact reliability or focusing on maintainability.

Select the solder mounting method if you want to emphasize the contact reliability between the socket and the board, and select the surface mount method if you want to emphasize maintainability.

Solder mounting method / Emphasis on contact reliability
Using 2 points pinch type pin with above 0.65mm pitch. BGA sockets are relatively inexpensive because they are mainly made with molded method.

Surface mount method / Emphasis on maintainability
Using bottom contact probe with vertical movement and more effective for Package warpage. Machined pin options available that enable to support the fine / multi pitch.

Point#3

Consider the method for heat dissipation and high current solutions.

We provide the most applicable heatsink style after running heat simulation. For high current solution, we are able to suggest bypass pin options as necessary.

Issues

Power Device socket for burn-in require to have stable performance even in a harsh environment, it is necessary to incorporate measures to avoid troubles in advance by utilizing simulation technology. Here are some common problems you may have when using BGA sockets for burn-in and solutions to them.

Issue #1

Difficult to find the general purpose socket due to special / unique pacakge shape

Since many Power devices are special and large compared to other ICs, general-purpose sockets cannot be applied and the cost tends to be higher

Solutions

We can design the contact unit with machined based on the Package shaepe, and utlize the molded frame with AM pin which allows to reduce intial socket manufacture cost.

Issue #2

Improve the thermal dissipation due to over heating.

Power devices generate a lot of heat and can cause thermal runaway during burn-in tests if they do not dissipate heat efficiently.

Solutions

We will provide the thermal simulation and able to provide the individual heat control system to resolve the issue.

Issue #3

Repeated burn-in testing reduces yield

For Au-plated contact pins, the base material of the contact pin may be exposed as the burn-in process is repeated. If this happens, the tin plating on the PKG Pad will be peeled off and transferred, and the contact between the socket (contact pin) and the device will become poor. As a result, the burn-in test will be NG and the yield with the device will decrease.

Solutions

Achieves a long life with contact pins that use ES plating.

Examples of Solutions for
Socket for Power Device

Supported Packages

Solutions

IC Socket Solutions.com offers socket solutions that apply a bulit experience and simulation technology to all the challenges that arise when burn in testing Power Device

Contact Us

Inquiries
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Test sockets for Power devices contact the lead terminals to ensure a secure electrical connection.
A probe pin and a press pin are used as contacts, making it possible to dissipate heat with a heat sink. We also offer models that use a surface pressure connection method that is easy to maintain.

The leaf spring contactor for wafer and chip testing have 4 point crown and ensures stable contact performance. Also, low contact force and low wiping technology enable to reduce the marking on the PAD side.

Furthermore, we enable cost reduction by combining molded housing and a machined socket frame. Since the molded housing is removable, replacement can be done easily at site.

Points

For power device sockets, it is important to select based on the usage and environment.
We introduce the key points to determine the specifications of the Power device for Test Socket usage.

Point#1

Select the socket type based on Mold PKG, or Chip / Wafer

Regular test socket can be used if mold PKG type.
Chip contactor can be used if Chip / Wafer contact

Point#2

Determine the number of contact pins to contact according to the amount of current in the device

Since the allowable current for one contact pin is limited, the number of pins to be contacted with the terminal is determined according to the amount of current of the Power device.

Point#3

If heat dissipation is required, consider using a heat sink

Power devices, which are often designed on the premise of heat dissipation, can be simulated in advance when considering a test socket. Having heat sink on the socket will enable the stable test performance.

Issues

Since test sockets for Power devices need to exhibit stable performance even in harsh environments, it is necessary to incorporate measures to avoid troubles in advance by utilizing simulation technology. Here are some common problems and solutions for using test sockets for Power devices.

Issue #1

Want to performed testing wafer / chip sate with high current.

Want to performed testing wafer / chip sate with high current.

Solutions

Many contact pins can be contacted with one PAD to handle large currents by using the chip contactor.

Issue #2

I want to test with the chip temperature controlled

When testing multiple Power devices, it is not possible to perform accurate tests such as thermal runaway due to heat generation.

Solutions

By utilizing individual temperature control, it is possible to monitor the PKG surface temperature and operate it in combination with a heater and FAN to keep it at any temperature.

Examples of Solutions for
Socket for Power Device

Supported Packages

Solutions

IC Socket Solutions.com offers socket solutions that apply a bulit experience and simulation technology to all the challenges that arise when testing Power Device

Contact Us

Inquiries