Industry Directory | Manufacturer
Jinan Scientific Test Technology Co., Ltd. is a high technology manufacturer and designer devoting on researching and developing, sales and service of material testing instrument in Jinan city, China.
Industry Directory | Manufacturer
The exclusive supplier of SIPAD Solid Solder Deposit in North America and the only SIPAD Solid Solder Deposit (SSD) coating service bureau in the world.
New Equipment | Test Equipment - Bond Testers
Easy and automatic CBP cavity cleaning with no mechanical jaw contact. During use solder builds up in the cavity in cold bump pull (CBP) jaws. This reduces their grip efficiency and affects the quality of your measurements. Cleaning the cavities is
Introduction 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 tempe
Electronics Forum | Thu May 05 17:15:46 EDT 2005 | russ
You got what I think someone has called a "cold melt". If you were to run your removal profile awhile longer you would not see this. Anyway, you don't have any issues as this is very common (at least in my experience). FYI I was thinking your oxid
Electronics Forum | Tue Apr 29 09:43:30 EDT 2003 | davef
With a nickel barrier and 'tin' plating, reconsider your reflow recipe to reduce the leaching of the termination into the solder during reflow. Points are: * In designing a reflow temperature recipe, it is important that the temperature be raised at
Industry News | 2018-10-18 09:37:27.0
How To Set Profile In SMT Reflow Oven
Industry News | 2018-10-18 08:17:09.0
How to Prevent Solder Joint Voiding and Cold Solder Defects during the SMT Reflow Process
Technical Library | 2019-05-29 01:47:22.0
1.Vias near SMD pads: Solder can flow into the via after melted. As a result cold joint will appear in the end. Check the picture below. 2.Vias on SMD pads: Solder can flow into the via more easier after melted. Check the picture below. 3.Via opening without soldermask covered. When workers solder TH parts by hand, soldering iron can touch vias sometime, then tiny amounts molten solder will stay on vias. This can lead to electrical short easily. We recommend you make all vias tenting (covered by solder mask) if it is possible.
PCBNPI-Professional PCB Fab/PCB Assembly Service Provider From China
Lyra Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board
Application product: straight line box, crash lock box, 4 & 6 corner box, hamburger box, folding, etc Model: KPM-PJ-V24 Controller model: HZ4 Pump model: HB6 Head :1-4pcs; 1-8pcs Input power :AC220V 50-60Hz Air pressure request: 6 bar Adhesive viscos
| https://www.eptac.com/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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. So then solder the other PCB side, The rail of reflow oven is easy to deform. The rail of reflow oven will not contract through thermal expansion and cold, and when the temperature drops, it is impossible for the track to change back to its original appearance
