New SMT Equipment: rough grainy solder joints (3)

Desktop Reflow Oven R1825

Desktop Reflow Oven R1825

New Equipment | Reflow

This oven is used for electron production and maintain of SMT technique. The product adopts the far-infrared heating components and excellent sense temperature materials. Through the precise control of the microcomputer, make the temperature control

HuiKe Tech

Lead Free Desktop Infrared  Reflow Oven 1816

Lead Free Desktop Infrared Reflow Oven 1816

New Equipment | Reflow

The R1816 infrared reflow oven is used for electron production and maintain of SMT technique. The product adopts the far-infrared heating components and excellent sense temperature materials. Through the precise control of the microcomputer, make the

HuiKe Tech

Electronics Forum: rough grainy solder joints (113)

Open joints

Electronics Forum | Wed Oct 03 17:07:52 EDT 2001 | davef

We have had soldering problems with fine pitch QFP in the past [and probably will in the future]. Several questions leap to mind: * When you took your profile on the component pads, do you profile on the pads that did not solder well? * When you say

Problem with solder joints in wave solder

Electronics Forum | Wed Jan 15 21:55:41 EST 2014 | padawanlinuxero

we do that and there's a variation on the solder temp. sometimes around 10 degrees, we have 2 solder pallets that are run in intervals of roughly 3 1/2 minutes a part (the time that take the operator to put all 3 terminals in a 42 pcbs per board, and

Industry News: rough grainy solder joints (9)

IPC MIDWEST TECHNICAL CONFERENCE BRINGS EXPERTISE IN MANUFACTURING DEFECT-FREE, RELIABLE ELECTRONICS

Industry News | 2011-08-18 21:23:09.0

For an industry that is constantly advancing, the technical conference at IPC Midwest Conference & Exhibition on September 21–22, in Schaumburg, Ill., will feature five sessions offering the latest research, methodologies and insights from industry experts to address critical challenges of manufacturing defect-free, quality electronics.

Association Connecting Electronics Industries (IPC)

IPC MIDWEST TECHNICAL CONFERENCE BRINGS EXPERTISE IN MANUFACTURING DEFECT-FREE, RELIABLE ELECTRONICS

Industry News | 2011-08-18 21:24:08.0

For an industry that is constantly advancing, the technical conference at IPC Midwest Conference & Exhibition on September 21–22, in Schaumburg, Ill., will feature five sessions offering the latest research, methodologies and insights from industry experts to address critical challenges of manufacturing defect-free, quality electronics.

Association Connecting Electronics Industries (IPC)

Technical Library: rough grainy solder joints (1)

Lead-Free BGA Rework-Transition Issues

Technical Library | 2007-08-16 13:34:31.0

While experienced inspectors may be able to determine the aesthetic differences between a lead-free PCB assembly and a tin-lead version, one cannot rely on the "experienced eye". "Less wetting out to the pad edges" (Figure A) and "graininess and lack of shininess of the solder joint" (Figure B) are typical comments about some lead-free solder joints. However, in cases where a Nitrogen atmosphere was present during the reflow of the solder joint (Figure C), there will be little visual differences between the lead free alloys and their tin-lead counterparts.

BEST Inc.

Videos: rough grainy solder joints (1)

Motorized PCB Separator MDS 508

Motorized PCB Separator MDS 508

Videos

Quick Overview: Motor-driven MDS-508-500/509-500 separates v-scored PCBs without stress to boards, components or solder joints. it is suited for medium to high-volume production,available with 460 mm or 600 mm (option) maximum cutting length. Cut le

1ClickSMT Technology Co., Ltd.

Express Newsletter: rough grainy solder joints (985)

Partner Websites: rough grainy solder joints (25)

Solder Dictionary of Terms | Nordson EFD

ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-glossary-of-terms

temperature joints.     T Tackiness Ability of solder paste to hold surface-mount components in place after placement.   Tensile Strength Characteristic of a material that describes its resistance to fracture when the material is under tension.   Through hole A

ASYMTEK Products | Nordson Electronics Solutions

5 Common Solder Mistakes and How to Resolve Them

| https://www.eptac.com/blog/5-common-solder-mistakes-and-how-to-resolve-them

.   4. Cold Solder Joint A   cold solder joint   occurs when the solder does not melt completely. A result of insufficient heat, cold joints are often characterized by being rigid, rough, and uneven in appearance


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