Solder Paste Group - Page 2

Group Administrators: 1 | Group Member: 198 | Group Threads: 217

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: 217 Threads，22 Pages Submit Project

1 comments

1205 views

Soldering PTH

Hi Folk's, a quick and easy? question. Got a card with PTH edge stiffeners fitted to it so we need to flow solder them. Having problems getting hole fill, mainly I think due to 2 things, poor pi...(view more)

anjenkuhn

2017/5/6 4:27:32

1 comments

884 views

Re-soldering QFP

Anybody with experience on such a rework ? The QFP has thermal pads underneath the body and needs to be re-connected when subjected for rework... Any ideas ?(view more)

kelvint

2017/5/6 4:16:53

1 comments

888 views

Wave solder capability study

I wanted to know what other folks are doing for wave CpK studies. I thought that conveyor speed, preheat temperature, solder pot temp (never did see a large pt (>1500 lbs) vary by a couple of degre...(view more)

peter.moloi

2017/5/5 3:43:52

0 comments

972 views

QFP144 soldering problem

hi, I have a big problem with soldering uP QFP144 package.All components in PCB are small, only this chip is big and I can't make good temperature profile.Solder joints of other components are s...(view more)

francesco81rs

2017/5/4 21:41:41

0 comments

1022 views

When to use Tin/Lead/Silver paste ?

When do you use Tin/Lead/Silver paste ? What is the advantage of using Tin/Lead/Silver paste comparing to Tin/Lead? Do you have to use Tin/Lead/Silver paste only if the components are made from Tin/Le...(view more)

theo_bestenlehner

2017/5/4 4:49:48

1 comments

881 views

Seho Wave Solder

We have an issue with our Seho Wave solder machine. The machine is an 8040C, early 90's model. The problem is that continues to heat the solder up, even once it has reached its specified temp. ...(view more)

erhanarslan75

2017/5/4 2:50:32

1 comments

854 views

Conformal over No-Clean

I was talking with my Paste and Flux Supplier about concerns of coating over "No-Clean" flux. Supplier informs me that this should not be a problem, but I wanted to poll the industry. 1. D...(view more)

Gregor Macek

2017/5/3 4:41:49

2 comments

868 views

Latex solder masks

Is there a peelable solder mask which can withstand an automated aqueous wash ? I need to prevent water ingress into SMT modules during the wash cycle.(view more)

sangngean4

2017/5/1 16:19:55

1 comments

976 views

Excess solder on pins

We are wave soldering a board having 24 similar thru hole connectors on it, using a wave soldering pallet. The problem is that one particular pin of connector in around 6-9 connectors get excess solde...(view more)

Brook

2017/5/1 14:47:36

1 comments

840 views

wave solder upgrade

Hi, I'm wondering what the average price of a conversion on a wave solder oven from leaded to lead free is in the uk, has anyone had theirs done recently? Would you let me know roughly what it c...(view more)

frmendozat

2017/4/27 1:34:23

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