Electronics Forum: antioxidant (Page 1 of 1)

consumption of lead free solder alloy SN100C

Electronics Forum | Tue Mar 18 05:32:09 EDT 2008 | gregoryyork

What volume of boards are you putting through. 1Kg per hour does sound very high but then again it does depend on volume Using an antioxidant is a must with Lead Free some alloys have additions in them to start with but those drop out with use so th

Solder Joint Discolouration

Electronics Forum | Mon Jan 21 11:41:39 EST 2019 | SMTA-Tony

Lead free HASL coatings can be susceptible to yellowing during reflow due to oxidation of the tin in the coating. Some HASL solder suppliers use anti-oxidant additives in the solder to limit or prevent yellowing of the coating. You may want to ask

No-Lead solder defect - No solder on pads

Electronics Forum | Mon Dec 22 19:43:43 EST 2003 | Dean

I have seen this affect on Immersion Tin and OSP. 70 to 90 % of the solder wicks to the lead and forms a "single" homogenous solder mass. This even though the pad was 100 % covered with paste... Evaluated different solder paste...did find variatio

exessive yellow-gold coloring in the solder pot with tin-silver-copper alloy

Electronics Forum | Mon Sep 25 15:32:21 EDT 2023 | joeljacobo

hello colleagues, Hoping that everyone is doing well, I am reaching out to you in the hope that your experience can help me. We have a wave solder with sac0307 alloy and the pot has turned a golden color, at first I thought it was common tin oxidat

Re: Tin-Lead thickness on PWB's/Let's Hear More

Electronics Forum | Wed May 27 21:05:30 EDT 1998 | Steve Gregory

Hey yooze guys! Enough of the jokes between you and Earl (GRIN), let's get back to the topic...well, okay... you can tell a few more...(but good ones, 'kay?) Anyhoo...I'm not sure if ya'll are on the IPC Technet list or not, I've not seen any posts f

Moisture absorbtion in circuit boards

Electronics Forum | Tue May 21 20:27:05 EDT 2002 | davef

No N2. We could not fix a benefit for N2 in our minds. Just fold the excess bag material over to expell most air and then seal the bag. [Have you assessed the benefit of N2?] F Monette can tell you stories about little versus more pressure. If he

Re: Tin-Lead thickness on PWB's/Let's Hear More

Electronics Forum | Thu May 28 07:25:58 EDT 1998 | Earl Moon

| Hey yooze guys! | Enough of the jokes between you and Earl (GRIN), let's get back to the topic...well, okay... you can tell a few more...(but good ones, 'kay?) | Anyhoo...I'm not sure if ya'll are on the IPC Technet list or not, I've not seen any p

Re: Tin-Lead thickness on PWB's/Let's Hear More

Electronics Forum | Thu May 28 05:43:33 EDT 1998 | Earl Moon

| Hey yooze guys! | Enough of the jokes between you and Earl (GRIN), let's get back to the topic...well, okay... you can tell a few more...(but good ones, 'kay?) | Anyhoo...I'm not sure if ya'll are on the IPC Technet list or not, I've not seen any p

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