This thread may give you an insight into the amount of work required to 'prove' RoHS compliance.... Remember that this will be required if you want to ship electronic/Electrical equipment into the EU after 01 June......
http://www.eng-tips.com/viewthread.cfm?qid=136031
Steve
Quality and...
If you read between the lines, it appears that the foundations are being laid for getting manufacturers to comply with RoHS (presumably to reduce problems with exporting non-compliant products).
Tucked away on P43 of the latest proposed version of the Electronic Waste Recycling Act (14 Feb, 06)...
Lead Free solders appear physically different to leaded solders.
IPC-A-610 D gives inspection critera for evaluating lead free solder
Off the top of my head you should expect to see
Duller Finish
Graininess
Fillet Lift
Fillet Cracking
Different Wetting Angles
Stress marks caused by differing...
My understanding is that RoHS compliant parts will NOT be required to be used within Air-Frame products
The Directive applies to the following types of product
(these categories culled from the WEEE directive)
1. Large household appliances
2. Small household appliances
3. IT and...
Hi Has anyone had any problems with a C-Cube device (DVX6110) used for MPEG compression suffering from failures?
We have failures on two different types of assemblies, but initial analysis of dead components is proving to be inconclusive.
Details of any previous experience with this device...
Hi.
We've a Motorola Power BGA device(MPC860 PowerQUIC)) that was originally developed for use on very thin boards (something like 0.6mm material), when we solder the component on, we get a lot of opens because the device does not stay flat, we've increased the amount of solder paste applied...
Hi,
I am trying to find out what (if any) standards exist to define what the minimum gap between a track on a pcb and the routed edge.
The boards will usually be multilayer, 10-16 layers and 1.6mm, the boards will be coated in soldermask, and conformal coating can be done but tends to hinder...
Thanks for the replies, I'm after a general standard that can be applied to a range of products. Our customer (in digital broadcasting) is after setting up a whole load of design rule checks relating to boards, and whilst wanting to get the board as well packed as can be, also wants to guard...
Hi.
I am having trouble finding recommendations relating to the minimum spacing betwee the edge of a PCB (PWB) and the tracks or ground/powerplanes.
Any information would be much appreciated.
Steve Bull
Quality and Circuit Engineer.
Seth, Thanks for the post,
JBartos....I'm not sure what you are talking about. Plastic is not one of the materials that makes up a PCB, also metal holes are not inserted into a PCB, they are electroplated after the drilled substrate has been 'seeded' or catalysed, usually with carbon or...
Does anyone have any experience of the effects of thermal contraction/expansion on plated through holes in PCB (PWB) assemblies.
I appreciate that whilst expansion due to excess heat or shock caused by rapid heating can cause fractures in the copper barrel of a circuit board, it is unclear if...
I should be very careful, this sort of thickness will be very likely to suffer from voids in the barrel of the via, and dependant on the method of manufacture, you may not even get the copper to meet in the centre of the hole.
Ally this to the fact the 6um is likely to break open under...
The removal of gold plating on components is covered in MIL spec, and is dealt with using a 'double dipping' method.
Darn frustrating too, you pay extra for the components, and then have to purchase and maintain equipment, and pay staff to remove it before the componet can be used.
That...
Does anyone have any experience of the effects of thermal contraction/expansion on plated through holes in PCB (PWB) assemblies.
I appreciate that whilst expansion due to excess heat or shock caused by rapid heating can cause fractures in the copper barrel of a circuit board, it is unclear if...
