Electronics Forum | Fri Aug 17 01:40:55 EDT 2001 | V.RAMANAND KINI
We are in the watch & clock Business. We have a Watch IC chip that has to be wirebonded using Ultrasonic aluminium wedge bonder. The wire dia is 1.25mil. The PCB is made of G10 Glass epoxy copper clad laminate. The copper thickness is 18 microns. The
Electronics Forum | Sat May 17 10:38:49 EDT 2014 | sarason
I hate to say this but in all probability this wont work. I have built real strain gages and they depend on the change(Co-effiecent) of resistence with strain(or Stretch). since you are connecting you elements up with copper wire it will frm part of
Electronics Forum | Fri May 16 05:17:13 EDT 2014 | julianf
Interesting. How did you connect the gauges in the press? Our press only has connections for thermocouples. But in essence, it's only a wire and an electical output. If you placed these prefabricated gauges on top and on the bottom surface, weren't
Electronics Forum | Mon Nov 14 17:09:07 EST 2005 | davef
From Alpha Metals: "The test for copper dissolution was conducted by dipping a pre-fluxed copper wire specimen into the test alloys for a specified time period. The change in diameter of the copper wire is measured and a rate of erosion is determined
Electronics Forum | Tue Oct 04 20:31:16 EDT 2016 | davef
IPC-7721, Section 6.1, Jumper Wires, Jumper Wire Selection #5 states: "Recommended wire is solid, insulated, plated copper wire, 22 to 32 AWG with a heat resistant insulation. Wire with tin-lead plating may be restricted due to environmental laws."
Electronics Forum | Mon Jul 06 16:46:39 EDT 2020 | emeto
If I was you, I would use solid copper wire and modify the new switch to have contacts same location and size as the old one. Then solder the same spot a s a full replacement.
Electronics Forum | Tue Sep 26 07:46:49 EDT 2023 | robertanderson
A transformer winding machine is a specialized piece of equipment used in the manufacturing of transformers. Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction. They cons
Electronics Forum | Fri Oct 16 14:36:11 EDT 1998 | Jeff Sanchez
| With current soldering of stranded wires to pcb assy's the wire tends to be very brittle and can break with very little movement of the wire. We use a low residue cored wire. Anybody with advice or who has seen a similar problem/knows how to overco
Electronics Forum | Sat Dec 21 13:03:52 EST 2002 | V.RAMANAND KINI
Hi to all, All of us are familiar with the conventional way of making PCB...I mean...photo tools/expose/develop/etch/plate etc., These involve lots of chemicals and the work place is toxic. I have a small PCB with just two curves (circuit tracks)and
Electronics Forum | Tue Jul 05 17:16:01 EDT 2005 | davef
We agree with Pat, but it's far from straight forward. [er maybe we should say we don't understand it.] We duplicated the results of a posting on the web. Flux, then dunk copper wire into tinning pots set at 250*C for measured periods of time. The
