I used a 3M SOIC-8 Clip with the same problem.
Next time, put a header on the board and connect to that rather than directly to the chip. Or you can use some of those tiny pincer-type test clips if you only need to grab one or two pins, I've found those to work well.
You can dream up many work-arounds while you are missing the intended point that 3M is selling SOIC clips that don't work. If the SOIC clip works then the method works.
Same problem here, I'm livid ! this is discusting, these clips are so useless. Yes I noticed the same, the contacts are too short, in fact the plastic at the bottom is wearing as the pins do not "stop" the chip the the chip teminals are digging into the clips plastic as it puts pressure to make contact with the pins that are too small.
I'm getting mine returned
Due to my board house fitting 50+ PIC12F629 chips onto a board before programming them, I found I had to re-program the devices in-circuit.
This shouldn't have been to much trouble since I purposefully avoided using the ICSP pins for GPIO, since I only needed 1 bit of input and 1 bit of output.
To reprogram the chips which are SOIC8 I should simply have needed to attach an SIOC test clip and wire it to my programmer.
I purchased these from farnell but could not get the chips to reprogram.
After a while it became obvious that the test clip was not making contact with the pins of the chip.
Taking a closer look with an electronic microscope it was obvious there is a clear air-gap between the contacts in the test clip and the pins of the chip.
I double-checked the spec of both the chip and the clip and in theory it should be a good fit.
Using a fresh SOIC-8 chip which was not soldered to a board and placing it in the clip reveals that the contacts in the test clip just appear to be too-short.
Unfortunately this was one of those situations where the project just had to be completed over the weekend, so I had to take drastic action and re-model the end of the test clip - so I cannot return them for credit, and there's no alternatives listed anyway.
Has anyone else had any experience of piggy-backing onto SOIC devices for test or development purposes?
Anyone else used these same clips and had success or failure?
The link above points to :