With this product, it is possible to test eight units simultaneously. Connections to each module are run across the breakout tabs and brought to a header on the panel that allows a connection to a test fixture. In this instance, the connector at the top is connected to a bed of nails. (Click here to see a larger image.)
Thanks for the other links, I'll check it out. I found your blog in the right column when I open the main EE TImes web page. I check out EE Times every morning (M-F). You're one of the authors I check out when ever I see a new entry. --Best Regards.
Nice article Aubrey, thank you. At my current company, I have found that In-Circuit-Test has become much more cost effective than a purpose built functional tester (when considering all NRE charges + test time). Especially as you have mentioned, a micro is involved, as that is used to test signal "strings" as I call them. We have found a 10:1 reduction in test fixturing development costs at best, and at worst, a 1.3:1 reduction (depending on complexity). The key is to design the board (PWB) with enough "targets" for the bed-of-nails to cover enough nodes.
I must admit that our move pales in comparason to the ones you are tal;king about. Nevertheless there are many frustrations, especially if the logistics haven't been well thought out. In our case we moved from a location where we were renting space within another organization to one that we own. So issues like stocking the bathrooms, kitchen, picking up the garbage and snowplowing were all new to us and someone has to look after that, but who? That is to say nothing about the responsibilty for the layout, fitting existing furniture iton that space, redeploying partitions, storage space and on and on. It didn't help that the guy organizing this first had bypass surgery and then a detached retina slap dab in the middle of all the preparations.
antedeluvian, I think many of us have been through location changes. My biggest one was from Burlington, Mass. to Andover, Mass. with a stop in Sunnyvale. We were moving into the new Andover facility and I was in charge of moving a product line from Sunnyvale to Andover. It was a great experience and I got to spend six weeks in Silicon Valley. I was single at the time and thus didn't mind.
Can you tell me where to get the Yellow and white board hold downs from I can not seem to find them
The name on the latches is "hua rong" and it has a logo of a spring loaded test probe of the type you see on the jig to make the elcetrical connections. A quick google search seems to show these guys as the likley candidate, (http://www.hrfnet.com/). I have tried working through the site and haven't had much joy. If you contact me at akagan at emphatec dot com I will give you the name of the compnay that makes our jigs. They do sell the latch on its own.
P.S. we are in the process of moving our location and the internet access is very iffy. Please forgive me if it takes a little time.
Aubrey, I tried using the Video Comment link but it didn't work. The video uploaded but EET said the video was not avaialble. So, I uploaded it to my YouTube Channel and used the embedding code, but first I had to resize the video to fit.
If you need help with posting photos etc. search for "How to Use the New EE Times."