Roger Hill


  • Hello, as I understand your description, the test “passes” in that the failure (bond or substrate) is always greater than the requirement, correct?

    since you are testing to destruction something will always fail.  Does the failure mode matter if you are well above the requirement. Given you use C/R, and it seems you have lots of data, can you…[Read more]

  • Hello, I have some questions.

    1 is the socket the interface between the DUT and the testing electronics?  If so, does it contain signal conditioning electronics?

    2 are sockets dedicated to test bays or can they move from test bay to test bay?

    your description sounds like multiple assembly lines each with a final dedicated test bay.  Depending o…[Read more]

  • Just a comment that echos what others have said. Is this effort for new product introduction? I worked at a company where design engineering regularly designed product made with “special processes” like bonding and welding. I could never get them to define the strength requirement (or get their management to see this as a problem). They exp…[Read more]

  • Guys, thanks for the quick response and sharing past war stories. I’m sure I can use these. I’m hoping for other contributions related to product development.

    3 years, 10 months ago

  • Hello everyone. I’m going to be doing a presentation soon on selecting key features for inspection. I’m looking for a good opening story or real life example of what can go very wrong when a key feature is not inspected because there was no method to selecting them, just the best guess of the part design engineer as what is important.

    Can ana…[Read more]

  • In place of a mentor is a great book ( and quick read ) on this kind of transactional-charting: Understanding Variation by Donal Wheeler. I wish I had read this books years ago. 5 years ago

  • Roger Hill became a registered member 5 years ago