Electronics Forum: wearable consumer devices (Page 1 of 4)

Contaminated product from field

Electronics Forum | Wed Feb 10 13:47:39 EST 2010 | davef

At a previous employer, we made a wearable medical device. When a customer finished using the device, she/he returned it to the company. Then, the company refurbished the device and rented it to other customers. Before it could be refurbished, it ne

Lower Temperature Processing- Solder Paste

Electronics Forum | Thu Feb 09 04:28:05 EST 2017 | soldertraining

Solder Pastes are used particularly in the assembly of printed circuit boards (PCBs) for a wide variety of applications, including hand-held electronic devices such as smart phones and tablets, computer motherboards, consumer electronic products, net

Stencil cleanliness and inspection

Electronics Forum | Thu Jun 07 13:40:12 EDT 2001 | kerryn

Dave, We have very short runs (less than one hour). We have stencils all over the place waiting to be cleaned. It is too time consuming to scope each stencil to inspect for cleanliness. Do you know of any automated or scanning devices that can ra

Rollback the Lead-Free Initiative by Dr. Howard Johnson

Electronics Forum | Tue Jul 08 12:04:31 EDT 2008 | patrickbruneel

Military is outside the scope of the directive. The RoHS directive is mainly focused on electronic equipment with a high potential to end up in the normal waste stream such as consumer products. The EU commission also knows that removing lead from a

Board Stress

Electronics Forum | Tue Jan 19 12:25:23 EST 1999 | Mike Cox

I need some opinions (And I know everybody has one). I am mounting a board into a case, after mounting the board I am loading it with stress in the middle causing it to bend around .030 inch. The board is 4" X 6" and is Bending in the 4" direction.

JUKI and USB 2 Floppy Disk emulator

Electronics Forum | Fri Aug 26 10:55:31 EDT 2022 | kumarb

a DOS USB stack will be required. If Windows -> the USB driver for this device will be required. If Juki has a custom OS then even less of a chance of a success. In all cases, you are introducing far too many layers of unnecessary software that is d

Handheld stencil cleaner

Electronics Forum | Thu Jun 20 15:05:41 EDT 2002 | carln

I saw this system at one of the last APEX Shows. I was not impressed because of the many downsides and potential hazards. Strapping an electrical device on your hand and placing the device into a liquid is kind of like blow-drying your hair in a ba

Re: FR4 vs Ceramic mismatch

Electronics Forum | Fri May 15 09:07:12 EDT 1998 | Earl Moon

| | I hear that there is a problem with using ceramic parts that are sizeable. Apparently, there is a mismatch in the Temperature Coefficient of Expansion between the FR4 and ceramic materials which causes the soldered erminations to weaken and event

BGA Picture Evaluation

Electronics Forum | Thu Apr 10 19:21:02 EDT 2003 | tony_sauve

Kevin, One point that I'd like to make is that in order to get an accurate reading of the solder joint temp's you need to have the thermocouple right at the ball/PCB interface. I'd recommend precision drilling a mechanical sample of the unpopulated P

Manufacturing and test room cleanliness

Electronics Forum | Mon Feb 05 10:12:32 EST 2007 | slthomas

The use of booties isn't required per se, just considered a standard step necessary to reach the 10,000 target. You also need to vacuum (central vac system, NOT exhausting into the room) daily, mop weekly, have a one piece floor, blah, blah, blah....

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