Electronics Forum: tarnish after reflow (Page 1 of 202)

Component drop after reflow

Electronics Forum | Tue Jun 25 23:54:54 EDT 2019 | anhsang38

Dear Everyone, I'm having problem. the Switch component drop after reflow. First, this component placed on top side and through Reflow. Next, the Bottom side is placed component and through reflow. After that, the switch drop and have a gap. We are u

board delaminated after reflow

Electronics Forum | Tue Apr 07 22:34:14 EDT 2009 | 1036

Board delaminated after reflow - see attached picture. Does moisture cause this problem?

Component drop after reflow

Electronics Forum | Thu Jun 27 11:56:40 EDT 2019 | slthomas

It seems to me that it would be easier to manually apply a little bit of chipbonder on the edge of the part after the first reflow than to tape the part down. The epoxy would cure sufficiently before the second reflow to secure the part after the s

Solder height after reflow

Electronics Forum | Wed Dec 08 19:16:20 EST 2010 | jgalarza

Can anyone tell me if there is a formula for finding the after reflow height of solder with no part attached? I have to print some pads that do not have any parts but there can not be more than 1.5mil of solder on the pad after reflow. I am going to

Part drop after reflow

Electronics Forum | Sat Jun 27 10:45:18 EDT 2020 | SMTA-Davandran

Hi Indhu, Check for solder paste height. Please manually add solder, mount component and reflow.

Part drop after reflow

Electronics Forum | Fri Jun 26 14:08:49 EDT 2020 | indhu

Hi, I am having a issue that SMT nut drop after reflow. The solder height all in specifications. Had tried adding flux inand the solder paste. But shows no improvement. Is the nut easily oxidize? Can anyone help me on this?

Part drop after reflow

Electronics Forum | Sat Jun 27 02:15:33 EDT 2020 | indhu

Hi Victor, The part drop after the first side reflow itself. The part seems like didn't catch solder.

PCBA delam after reflow

Electronics Forum | Fri Aug 27 00:26:14 EDT 2004 | charly

hi, encounter few cases PCB was delam after reflow, and the supplier was refuse that this is a PCB manufacturing defect as the fallout is low within one lot. the cost for this scrap is high after PCBA level, my query here are 1) is there any way

Part drop after reflow

Electronics Forum | Sat Jun 27 04:14:01 EDT 2020 | rsatmech

Hi Indhu, Kindly check the data sheet of the part for Reflow details and what type of past is been used for Reflow?

Bad wetting after reflow

Electronics Forum | Fri Apr 09 09:08:40 EDT 2010 | cast2010

Hello, I produce two types of board. - 100% Thru Hole - 50% thru hole and 50% SMT For the second, I have a bad wetting after the reflow on the top. The pcb board have Au-Ni pad. I use a water soluble paste. I clean the board with a solution with

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