Category:PCB PCB Industry Information

Group Administrators: 0 | Group Member: 139 | Group Threads: 892

This Group provides continually the latest information on the most recent trends, forecasts and analysis in the printed circuit board space.

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Search Results: 411 Threads,42 Pages
5 answers
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How to add a trace to a PB

We have a need to add a trace to a large quantity of bare PB's. The trace goes from a 25 mil QFP pad to a via. The rework must be done before we process the board. The rework cannot interfere with the... (See More)

sam adnan
2017-03-01 05:11:42
Ahern
2017-03-03 05:11:42
5 answers
161 views

Has anyone had any problems with surface mounting on CEM - 1

We are considering adding surface mount components to a board we currently produce. The board is made from CEM-1. Has anyone had any problems with surface mounting to this material? We use a glue/plac... (See More)

pmaggi
2017-03-01 05:04:07
uooa
2017-03-03 05:04:07
5 answers
53 views

Need help on Tomb Stoning

We have been asked to rework several thousand bare circuit boards. A design change now requires 2 chip components where 1 was originally required. Round test pads near this area will be used to comple... (See More)

MARCO AURELIO
2017-03-01 05:04:04
Breton
2017-03-03 05:04:04
5 answers
149 views

Survey on PCB Solder Finishes

PCB Solder Finishes Survey Questions Results for the 1996-7 survey are located at www.smartgroup.org As a number of SMART people have requested an update on the solder finishes survey SMAR... (See More)

hisham.i
2017-03-01 05:03:25
Don Caprio
2017-03-03 05:03:25
5 answers
145 views

I need assistance in selecting SMT equipment

I'm trying to start a small SMT contract shop and I need assistance in selecting equipment. Quad seems to be the leader but if there is something else out there that can better suit me please let me k... (See More)

andrea.pirovano
2017-03-01 04:52:58
Carlos Ruiz
2017-03-03 04:52:58
5 answers
118 views

Anyone know what reductions are typical for stencils

Can people let me know what reductions are typical for stencils. This can obviously be affected by the technology of the board, but for chip caps and R's do you use 1:1 and only reduce for finer pitch... (See More)

luizleo2001
2017-03-01 04:34:47
Gareth
2017-03-03 04:34:47
5 answers
146 views

I am seeking the source of a PIND Tester

This message is for the "packaging" types in our industry. I am seeking the source of a PIND Tester (Particle Impact Noise Detector). It is used to detect whether loose bodies or contaminants may be p... (See More)

andrea.pirovano
2017-03-01 04:12:01
Abner
2017-03-03 04:12:01
5 answers
231 views

Process Issues of PCMCIA QFP

Currently manufacturing double-sided PCMCIA cards with a nickel/gold finish, which are 0.0235thou in thickness, using surface mount carriers. Problem we are seeing is when building the densely populat... (See More)

Brook
2017-03-01 04:04:21
Gustavo Santaolalla
2017-03-03 04:04:21
5 answers
157 views

Where can i find some information about wave solder land patterns?

Where can i find some information about wave solder land patterns...? I'm especially looking for how to prevent solderbridges (with solder thief) on diffrent componet types (only leadede, no SMD). So ... (See More)

Allen Litton
2017-03-01 03:57:58
ErikLee
2017-03-03 03:57:58
5 answers
124 views

any other experiences and results in flux vision

I've been asked to "heat up the oven profiles" to "burn off" the excessive flux so our vision equipment can inspect solder joints. 1. I am using Multicore SN 63 no clean solder paste. 2. W... (See More)

quintendesmyter
2017-03-01 03:32:36
Darcy
2017-03-03 03:32:36
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Search Results: 411 Threads,42 Pages