Electronics Forum: 650 (Page 15 of 26)

SMD flatness standard

Electronics Forum | Mon Nov 20 19:49:03 EST 2006 | davef

Sorry for stating this incorrectly. It should been: Bow & twist for bare boards and panels: IPC-A-610 Acceptability of Electronic Assemblies, 10.6: 1.5% for PTH only and 0.75% for SMT, acording to test method TM-650, method 2.4.22 IPC-6012, par. 3.

Ionic Cleanliness testing

Electronics Forum | Tue Apr 03 17:13:33 EDT 2007 | kmorris

Just wanted to do a poll to see how others are determining their test time for Ionic testing. Test Method IPC-TM-650 number 2.3.25, section 5.3.3, says "The test time should be in accordance with the monitoring plan criteria (set time or auto-shutof

Nitrogen (N2) Costs

Electronics Forum | Fri Jun 29 09:40:46 EDT 2007 | dphilbrick

We have 2 ovens and 2 wave solder machines using nitrogen. When we were running 2 shifts a day 6 days a week we were spending about $3500 per month. Currently running 1 line 5 days a week we are at about $650 per month. These costs include taxes, tan

Ionic - MIL-P-28809A vs IPC TM650 (2.3.25C)

Electronics Forum | Wed Nov 19 06:02:22 EST 2008 | caerleon

Hi all, I have been in the game for near on 15 years and finally something has stumped me! As this site has always provided a wealth of knowledge and at times some amusement I have decided to post it here. Ok. My company uses a test method on an Om

Deionized Water Standards

Electronics Forum | Thu Feb 05 18:16:37 EST 2009 | adamcrum

Can somebody help me to understand what standards are in place for deinozed water for cleaning circuit boards. I know they are supposed to be in acordance with J-STD-001D, but what does that entail? All I can find on the internet is that J-STD-001D a

Conformal Coating

Electronics Forum | Tue Nov 01 09:16:03 EDT 2011 | austinpeterman

Hello, Looking for a solution to silicon conformal coating wicking up into connectors. We build IPC-A-610 class 2. We are using a PVA 650 with Dow Corning 1-2577 conformal coating. We have solder joints that must be coated 1.25mm from the connecto

AOI Bench top

Electronics Forum | Wed Jun 20 04:43:01 EDT 2012 | ruthar

you can search for the following AOI that fits for your assembly shops and may depend in what application you are going to use.Ive'd known a few out there in the market naming some: 1.NORDSON Yestech BX AOI its a 5 mega fixel color imaging 2.OMRON VT

I am looking for an IPC spec for intentional PCB warp

Electronics Forum | Mon Dec 22 16:20:03 EST 2014 | warwolf

Basically the contract comes first, then the design drawings then IPC. if your costumer is asking you to bend the PCB then it becomes apart of the design drawings. as for looking for a cover, get it in writing that that's what they want you to do. I

Rework Station for Large PCBs

Electronics Forum | Mon Jul 23 08:52:20 EDT 2018 | mgerrior

Hey Everyone, looking to purchase a new rework station to support large PCBs. Currently up to a maximum of ~ 21" x 18". Does anyone have experience with any of the following equipment or can recommend from other manufacturers? - VJ: Summit 2200

Excessive Heat / Thermal Excursions From Baking

Electronics Forum | Fri Sep 03 16:43:13 EDT 2021 | djenkins62

Hello Everyone, We are building devices to remove moisture from boards prior to rework where it does not require the use of ovens as stated in IPC-TM-650, Method 2.6.28. Instead of evaporation, we use moisture magnets to pull out the part......even


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