Electronics Forum: reach vs rohs (Page 1 of 5)

SAC305 vs SN100?

Electronics Forum | Sat Apr 21 14:50:17 EDT 2012 | edmentzer

We are using SN100C in both our wave and selective machines and have very good results. We also using it for ROHS hand soldering. It flows better than SAC305, the joints are shinny just like Sn63/37. We are looking into using SN100C as our paste b

Bake vs Dry Box

Electronics Forum | Thu Jul 25 08:58:22 EDT 2019 | Matt

Hey all, i'm hoping to get some feedback from the community on baking process versus a dry box. current process we have for rework of PCBs is to perform a 16 hour bake cycle on hardware before BGA rework is performed. however this process is ineffi

Tombstones? Pb vs Pb Free

Electronics Forum | Tue May 09 15:02:46 EDT 2006 | Chris (2)

Hi Chris, We have only produced a few RoHS assemblies as of yet but we have not had one tombstone so far (knock on wood) I'm hoping that will not become a problem. We have enough of them now! Good Luck Chris

Impact Value vs Placement Force

Electronics Forum | Thu Mar 15 13:39:06 EDT 2018 | gregp

Impact is the instantaneous force at the time the component first reaches the PCB. F=M*a....so the acceleration is the key factor. If charted on a graph it would look like a spike...higher force for a short duration. The placement force is typical

Clean vs No Clean PCB assembly process

Electronics Forum | Sat Jul 28 10:51:38 EDT 2001 | nifhail

I'm curious over what would happen if we continue to use the WS paste when dealing with uBGA. Definitely the cured flux under uBGA package couldn't be cleaned/reached and as I understand correctly they are corrosive. if that so, how long do you guys

Dymax vs Humiseal Urethane Confomals.... Anyone?

Electronics Forum | Tue Feb 03 13:39:08 EST 2009 | grics

Good morning Jamie. I work at a CM and can offer some input on process flexability. I do not have any data on how reliable the coating is but I can say that they are both very difficult to control. Will you be selective coating or full coating? Ho

Solder mask vs non solder mask defined pads

Electronics Forum | Tue Feb 09 16:53:06 EST 2021 | SMTA-64387083

The size of the pad changes among the two. A solder mask defined pad will always be larger than a copper defined by your mask expansion setting. This will affect paste volume, if your standard paste aperture is designed for copper defined pads you m

Solder Paste Cleaning Procedure

Electronics Forum | Fri Mar 08 03:21:18 EST 2013 | sdhmuni12

Can a ROHS PCB with ROHS solder paste can be cleaned in same basin/sink when Non-ROHS solder paste PCB are cleaned? Any detail procedure or cleaning technics for NON ROHS Solder Paste PCB VS ROHS Solder based PCB?

ROHS compliance for contract manufacturer

Electronics Forum | Fri Jul 24 17:08:04 EDT 2015 | cnotebaert

little behind are we? look in the archives from 2002-2005 when ROHS was implemented. however no real requirement here, ask your customer what they are after, most simply want a c of c stating its ROHS compliant, if your are talking REACH, that's a en

Son of RoHS...

Electronics Forum | Thu Jul 27 08:48:18 EDT 2006 | Chunks

I think several of us have predicted this. Once the boys at RoHS get things rolling they have nothing to do. So, why not look into bigger and better things? I like their fancy buzz name too "REACH". I guess it's an oxymoron. Didja know large amo

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