Electronics Forum: tamper (Page 1 of 2)

tamper proof (but removable) labels

Electronics Forum | Wed Jan 30 13:45:59 EST 2019 | slthomas

I'm wrestling with the infamous adjustable torque drivers on the production floor. Despite a procedure that clearly forbids it, we still have the occasional know-it-all that will just crank the knob until the desired setting is visible in the windo

Mothballing

Electronics Forum | Thu Dec 13 11:06:35 EST 2001 | Dermot

Hi Guys, Quick question I want to mothball a full SMT line ie shut it down so it dose not lose any deprication...I need a way of tamper proofing the equipment so that our technians do not canibal spares from the machines. Any ideas...of how to do thi

Epoxy Covered PCBAs Means to prevent hacking?

Electronics Forum | Mon Sep 22 22:19:16 EDT 2003 | Dean

Questions: 1. Is this a retail product sold as PCB only? Or is this in a finished chassis / case (like an external modem)? 2. Are the customers damaging only the BGA devices? Like prying them up with a screw driver? What? You can dam and fill

Epoxy Covered PCBAs Means to prevent hacking?

Electronics Forum | Wed Sep 24 20:04:44 EDT 2003 | Michel Moninger

http://www.mgchemicals.com/products/832.html Loctite makes a version too, if I recall. Designed to be tamper evident, but yes, rework is a bear. We had similar results using one of Lord Chemical's urethane potting compounds. It was a filled black fi

What's The Dealy-O With Smocks?

Electronics Forum | Sat Dec 17 08:07:47 EST 2005 | Ola

Washing the clothes is just for removing dust & dirt outside the coat that eventually can tamper with the ESD. The metal threads in a matrix grid inside the coat, will always work! You don't need to wash them more often than You normally do with Your

CM402 - lead check option

Electronics Forum | Thu Mar 24 16:46:29 EDT 2016 | tombstonesmt

The recognition system uses a image histogram for the lead tip check. So, perhaps you were scanning the area from the lead edge to .1-.2 towards the body of your QFP and not fulfilling the required pixel count for that area; increasing it allowed yo

Re: Popcorn @ reflow

Electronics Forum | Thu May 20 18:08:57 EDT 1999 | DEON NUNGARAY

hello...can somebody help me regarding the POPCORN at Reflow. What is this POPCORN at reflow, what it looks like, its cause and corrective action if there is... your help is greatly appreciated...thanks omat marasigan Deon Response:

What is the solution for removing epoxy on BGA chips?

Electronics Forum | Sun May 21 09:38:25 EDT 2006 | davef

Epoxy Removal and IC Delidding [Hardware Hacking: Have Fun While Voiding Your Warranty, Chapter 14] Encapsulation of critical components using epoxy or other adhesives is commonly done to prevent tampering and device access (the microprocessor shown

Inspection Marking after Conformal Coating????

Electronics Forum | Sun Mar 09 09:15:21 EDT 2008 | davef

Q1. What kind of labels/ink/sharpe can be used under conformal coating without disolving etc...? A1. While we're not familiar with the conformal coat you have selected, this might help. Label selection: The following chemically durable materials are

SMT Production Tips

Electronics Forum | Sat Nov 26 00:02:17 EST 2011 | kevintough

I agree with this post about new and standard component names. Standard components should not be changed outside of perhaps widening the tolerance to accept poorly produced components. By purchasing poor quality/cheep components your purchasing depar

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