Electronics Forum: engineered conductive materials (Page 1 of 49)

High temp conductive material needed

Electronics Forum | Tue Jun 22 17:14:41 EDT 1999 | Dennis Fall

I am looking to apply 10-15�m of a conductive material that will withstand 280�C. Our product consists of an alumina substrate sputtered with NiCr (2000�) and Copper (2000�) and 15-60 �m of electroplated copper (all metals patterned on the substrae)

Silver conductive glue in syringe - mixing

Electronics Forum | Mon Sep 11 07:36:04 EDT 2023 | tommy_magyar

See attached snippet from a datasheet: Syringe 1. Twist and remove the cap from the syringe. Do not discard cap. 2. Measure 1 part by volume of A. 3. Measure 1 part by volume of B. 4. Dispense material on a mixing surface or container, and thoroughl

Re: High temp conductive material needed

Electronics Forum | Wed Jun 23 10:21:25 EDT 1999 | Chrys Shea

| I am looking to apply 10-15�m of a conductive material that will withstand 280�C. Our product consists of an alumina substrate sputtered with NiCr (2000�) and Copper (2000�) and 15-60 �m of electroplated copper (all metals patterned on the substra

conductive circuit printer on thin film

Electronics Forum | Wed Aug 25 00:10:13 EDT 2021 | sarason

The company that does this is McDermid. There are multiple different ways of doing it. Screen print silver paste onto the mylar, "activate" the film to be conductive, then plate in copper. These processes are found in the patent literature which is e

Re: G Tech materials for PCB fab

Electronics Forum | Thu May 11 21:15:01 EDT 2000 | Dave F

Cecep Wahyu: A fairly broad topic for an online forum, don�t you think? 1 People write books on plating. Buy one: "Electroplating: Fundamentals of Surface Finishing" Lowenheim, FA (0070388369) "Graham's Electroplating Engineering Handbook" 4Ed, Dur

Re: cracks between electrical conductive adhesive and round the edge of the Chip-leds

Electronics Forum | Mon Aug 21 20:31:49 EDT 2000 | Dave F

George: I�d like to help, but I�m sorry I�m not familiar with your Matthey adhesive, can�t find information about it on the web, and can not picture the problem you are describing. Please post a picture and give us more detail. At least give us a

What is the QFN or Device Voiding Levels Needed for Automotive Industry for Power Devices for Electric Vehicles?

Electronics Forum | Wed Mar 15 09:53:58 EDT 2017 | rob

Hi Etimov, Understood that to us assembling parts that IPC is king, however it isn't neccesarily the bible for design engineers. We've had customers demand almost zero voiding, or had to use conductive epoxy to avoid it. For some of us solder joi

Etchback

Electronics Forum | Wed Oct 19 07:44:33 EDT 2005 | davef

When a hole is drilled during board fabrication, it can transfer resin from the base material (eg, FR4 core or prepreg) to cover the exposed edge of conductive material in the wall of a drilled hole. This is called resin smear. Etchback is a control

Solderless Methods for Tuning RF Circuits

Electronics Forum | Fri Oct 25 13:23:02 EDT 2019 | SMTA-Joe

Hello SMTA, This may be beyond the scope of the SMTA since it does not strictly deal with assembly of electronics, rather, it is about potential solderless methods for manually tuning RF circuits. Our Engineers & QC have tasked manufacturing with

Thermal Conductivity Of Copper

Electronics Forum | Mon Dec 18 17:56:26 EST 2000 | Dave F

Does the thermal conductivity of a copper trace on a printed circuit board change as the copper oxidizes? Is the oxide on copper a thermal insulator? If so, should it be considered in an analysis of thermal resitivity between a ground plane and a h

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