How to: Cold Bump Pull


We have added an extensive how-to on Cold Bump Pull (CBP) to our website. By doing this we aim to spread knowledge about bond testing in the industry.

Please feel free to use this guide to bond testing and we invite you to let us know if you have any comments or specific questions regarding the application of it to your samples, whether you use our equipment or not.

The how-to consists of 12 paragraphs and 7 pages:

  1. Introduction
  2. What is CBP?
  3. What types of balls can be tested?
  4. Objectives
  5. Jaw size
  6. Jaw quality
  7. Setting up and doing a test
    1. Alignment jaw opening and back relief
    2. Jaw alignment in X, Y and Z
    3. Grip force and getting used to X and Y alignment
    4. Closing time
    5. Landing force and alignment height
    6. Optimizing the test
    7. Test speed
  8. XYZTEC USB Tweezers
  9. Test sequence recap
  10. What test force should I expect?
  11. Cleaning the jaws
  12. JEDEC failure mode standards


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