What is Signal Integrity?

The main purpose of signal integrity is to maintain integrated signal transmission and prevent interferences.  The results of signal tests can be affected by the following factors:
  1. Testing Point
  2. The welding angle of DUT
  3. The length of the signal-adopted line
  4. Interference from surrounding elements
  5. Bridged to signal plates
  6. Measuring means

Different Locations of Testing Points Can Lead to Different Test Results

Next, we are going to demonstrate the difference in test results of various testing points with the following MIPI D-Phy testing.

Yellow Circle: The distance, as well as greater impedance from obstacles along the lines, will affect the signal’s ascending capabilities. The duration of signal transmission can be used to determine whether the result is successful or not.

The Importance of Signal Integrity Testing

As engineering technology evolves, the development of new products begins to take various external factors into consideration. As a result, signal integrity testing has become more complex. Allion’s team of professionals and precise instruments can help vendors to identify potential risks in products so as to avoid the need to debug and revise the products after they are launched to the market. The following are Allion’s testing items. If the test result is a fail, it corresponds to the potential risks of the product:

A Complete Signal Integrity Solution for Your Products

Our labs are equipped with versatile instruments, fixtures, and a technical team that provides consultation for our clients while creating diverse signal testing solutions based on their needs.

The Scope of Allion Test Capabilities

Through the following cases of eMMC HS200 Data testing, Allion demonstrates how the use of fixtures will affect the results.

The reflective signal (red circle in the center) in the graph below indicates that signal jitter is smaller when using fixtures, thereby providing a more stable signal. Signals without any fixture panels have greater fluctuations and are not as stable.

Introducing Allion Test Instruments

Introducing Our Main Test Fixtures