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 10 paragraphs:

1. Introduction
2. What is CBP?
3. What kind of balls can be tested?
4. Objectives
   1. Rule #1:
   2. Rule #2:
   3. Rule #3:
5. Jaw quality
6. 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
7. Setting up and doing a test
   1. Closing time
   2. Landing force and alignment height
   3. Optimizing the test
   4. Test speed
8. USB Tweezers
9. Test sequence recap
10. What test force should I expect?