Category:PCB Assembly Solder Paste

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Solder paste is a material used in the manufacture of printed circuit boards to connect surface mount components to pads on the board. It is also possible to solder through hole pin in paste components by print solder paste in/over the holes.

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Search Results: 220 Threads,22 Pages
5 answers
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Flux paste volume

Hello, Is the volume of flux paste critical over reflow temp. profile and belt speed?. (See More)

Garcia Villalobo
2017-02-27 05:49:39
Malcolm Evans
2017-03-01 05:49:39
5 answers
155 views

Tools / Methods to remove solder balls

I am looking for suggestions on " How to remove solder Balls". We have some designs and tools where nothing can be done economically except to remove the solder balls manually. We are using "Probe" pi... (See More)

Oguz AGCELI
2017-02-27 05:20:32
Holger
2017-03-01 05:20:32
5 answers
136 views

Wave Soldering Flus Selection

Hi, I read an article that says "Flux selection usually depends on the following factors": a) Solderability of pcb base metal or coating b) Corrosivity of vapours and residues c) electrica... (See More)

kyleahampton
2017-02-27 04:16:15
Bernard REMOND
2017-03-01 04:16:15
5 answers
158 views

about wavesoldering

Is it possible to achieve a 100% top-side solder fillet where pin 1 on the device is attached to a ground plane ? we've optimized the wave soldering and fluxing operations, but without much success on... (See More)

rownickijan
2017-02-27 04:14:26
Emre Karabek
2017-03-01 04:14:26
5 answers
162 views

lead-free mixed technolgy

hi, NEMI recommends separate solders for reflow soldering and wave soldering. Reflow soldering- Sn-3.9Ag-0.7Cu Wave soldering- Sn-0.7CU Wave soldering- Sn-0.7Ag What will happen if a mixed technology ... (See More)

a.boehm
2017-02-27 03:37:52
Charles
2017-03-01 03:37:52
4 answers
159 views

Reduction of solder paste usage

We are exploring ways to reduce the waste of solder paste. Here are some of the ideas I have in mind: 1) To use paste supplied in Syringe instead of jar. Paste that are opened more than 8 hours ... (See More)

gigisi1
2017-02-26 23:19:01
Artur Assun??o
2017-02-28 23:19:01
4 answers
158 views

Soldering wires to through holes

Hi I do not work for a board house but a manufacturing facility where we do a considerable amount of soldering wires to through holes. We pretin our through holes on both sides of the PCB prior to ref... (See More)

tomasarizacrespo
2017-02-26 17:33:45
Dennis
2017-02-28 17:33:45
4 answers
91 views

solder paste storage to -40 degree celsius

Hi I have solder paste that suppose to be stored to 0 - 10 degree Celsius. However due to broken fridge, we decided to stored on -40 degree Celsius freezer. Does the solder paste still good to b... (See More)

Gareth
2017-02-26 17:30:44
Nikolay Dovgilov
2017-02-28 17:30:44
4 answers
217 views

Soldermask Compensation

I am looking for opinions on how much larger soldermask pads should be versus the copper. I am aware that some pcb manufacturers can hold tighter tolerances than others but is there an IPC recommendat... (See More)

Artur Assun??o
2017-02-26 17:05:48
Darcy
2017-02-28 17:05:48
3 answers
95 views

Solder Volume Shipment Data

Is there any published data for solder volume shipment? Possibly broken down by country. (See More)

Keven Lohuds
2017-02-26 10:40:21
OSCAR GOMEZ
2017-02-28 10:40:21
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