Electronics Forum: 42.0 (Page 121 of 131)

Alternatives to CircuitCam

Electronics Forum | Thu Sep 15 07:20:42 EDT 2022 | spoiltforchoice

Why oh why can companies like Aegis not just bundle up this clearly common requirement, put a price tag on it and an online purchase option. What is with the haggling and special quotes and a sales rep? OK so you have some features to upsell, but its

Automated Inspection vs Manual Inspection

Electronics Forum | Mon Jul 31 12:04:42 EDT 2023 | spoiltforchoice

You could spend 30 mins inspecting a modestly complex board manually using a magnifier/scope and still miss things. Humans get distracted, bored and tired. It is also difficult or impossible to visually inspect some faults like mild tombstones or qu

Cleaning PCBs with a MEMS microphone on it

Electronics Forum | Thu Oct 05 13:24:42 EDT 2023 | rgduval

So, a couple of things... First, you're asking about water washing a part, but, note that the manufacturer says to NOT ultrasonically clean their microphones. Those can be two different cleaning types...assembly shops using water wash may not be us

Large Radius Curved LED Lighting Designs (Multiple feet)

Electronics Forum | Wed Dec 06 05:50:42 EST 2023 | calebcsmt

For typical small sized circle LED panels, you can simply have a PCB routed to said circle... but when lighting fixtures are sizes 2-3 feet+, and a circular, typically how are the LEDs being spread across the radius? I can see flex LED strips being

Immersion Silver - Sulphur

Electronics Forum | Sun Feb 23 14:32:42 EST 2003 | davef

Sources of sulphur in PCB fabrication are: * Some locales have high H2S concentrations in the air. * Metal etching steps that use sulfuric acid or a sulfonated buffering compound may result in sulfate residues. * Sulfates can come from contact with

Re: High temp solder

Electronics Forum | Wed Aug 30 16:00:42 EDT 2000 | Dave F

Russells: You can mix the two solders you mentioned, assuming by "96s" you meant "96Sn / 4Pb". If you heat the two tin / lead alloys to a liquid state, you�ll form a tin / lead solution with properties different from either of the two solders. The

Electroless Nickel/Gold finish

Electronics Forum | Tue Apr 17 10:16:42 EDT 2001 | davef

Welcome to SMTnet. Awww, those assemblers are always whining about something. Just tell him to shut-up and build the blankin� boards. Jeesh!!! We used to have copious archives on the topic on SMTnet and our friend Brian is working his fingers t

debridging hot air knife.

Electronics Forum | Sat Jul 14 10:34:42 EDT 2001 | davef

This portion of SMTnet is intended for people whining about the operation of the forums and what-not. A lot of the people asking questions like your use the production forum. We don't have an air knife on our wave, but I recall some threads on SMTn

Re: Dull Solder

Electronics Forum | Fri Nov 12 10:00:42 EST 1999 | Dave F

Edmund, following-on from Wolfy: Back in the old days, anyone who could spell "sodder" considered "bright and shiny connections" GOOD and "dull and grainy connections" BAD. Now, "dull and grainy" connections can be either GOOD or BAD, depending on

Re: More informations on water clean for CSP/BGA package

Electronics Forum | Wed Oct 06 08:41:42 EDT 1999 | Dave F

| | Hi, | | | | Help! Could anyone help to enlighten me on this? | | | | Question: | | | | If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a n


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