Electronics Forum | Thu Aug 01 04:57:10 EDT 2019 | ameenullakhan
hi Team, observed component skew during reflow process. Inductor location. I have attached the image for the same. Please provide your valuable feedback. Attached are the images for the same. Its SAC305 alloy , R0L1 flux chemistry. Regards, Am
Electronics Forum | Fri Aug 02 01:54:24 EDT 2019 | ameenullakhan
Hi All, Any method to check any vibration in reflow oven. Regards, Ameen
Electronics Forum | Thu Aug 01 11:43:57 EDT 2019 | slthomas
I noticed that your solder mask registration is off some. Does it cover a significant portion of any of the pads for these parts? If so, is it possible that the surface tension of the solder at liquidus is enough to skew the part when the solder i
Electronics Forum | Fri Aug 02 09:55:41 EDT 2019 | davef
While I agree there is "too much solder" on this board, I don't think that is the sole explanation of what's going on here. I don't think the pads on the board match up well with the terminations on the components.
Electronics Forum | Fri Aug 23 12:51:03 EDT 2019 | ameenullakhan
Hi , We are using 5 mil thickness. Sure will very the PAD with component data sheet recommendation. Regards, Ameen
Electronics Forum | Thu Aug 01 13:15:52 EDT 2019 | davef
if the inductors were your only problem. My mom wouldn't be pleased with the V30200C dual voltage rectifier just below the inductors
Electronics Forum | Thu Aug 01 14:18:35 EDT 2019 | huske
Looks like you have too much solder, looks like is balling out of the side of your pads.
Electronics Forum | Thu Aug 01 23:52:12 EDT 2019 | ameenullakhan
Hi ALL, Thanks for your valuable inputs. Will go through the suggestions and come back. Regards, Ameen
Electronics Forum | Thu Aug 22 16:13:47 EDT 2019 | scotceltic
I have to agree with Dave here. Can you compare the datasheet pad recommendations to your design ? It may help to show the forum a picture of the bare PCB pad design along with a pic of the bottom terminations on the part. What Stencil thickness a
Electronics Forum | Thu Dec 12 02:46:31 EST 2019 | ameenullakhan
Dear Javi, Thanks for such a detailed study and idea. Will try to prove it to customer. And let you know. Ours is high mix low volume EMS. We may get this PCBA back in next month. Will try to implement all your suggestions. Thanks once again.
