Layer Count: 2L Board Thickness: 0.8mm Dimension: 140*85mm Material: Rogers RO5880 Surface Copper: 35μm Min Hole Diameter: 2.0mm Min line Width/Space: N/A Surface Finish: ENIG Do you need a PCB for special signal requirement into your products? High
New Equipment | Assembly Services
Rigid PCB assembly PCB assembly, also known as PCBA, is a process of mounting various electronic components to a PCB. The board is called a PCB before assembling the electronic components on it. After the electronic components have been welded toget
Electronics Forum | Wed Jul 31 17:35:16 EDT 2002 | davef
* Finally, when soldered by hand, do the problem pads take solder? Yes, the XRF analysis will be interesting.
Electronics Forum | Mon Jul 29 16:43:55 EDT 2002 | mcm4me
I have a customer with up to 8% scrap from one board supplier and 1% from another supplier for solder dewett and no wet over ENIG finish with mask defined pads. Initially I suspected mask residue on pads because of the no wets but I have come to find
Industry News | 2019-11-05 22:07:01.0
Tenting a via refers to covering via with soldermask to enclose or skin over the opening. A via is a hole drilled into the PCB that allows multiple layers on the PCB to be connected to each other. A non tented via is just a via that is not covered with the soldermask layer. Leaving these vias exposed or covered has pros and cons depending on the your design and manufacturing requirements.
Industry News | 2015-05-13 14:00:03.0
The evolution of soldering processes in the Microelectronics Industry has made a paradigm shift away from Sn/ Pb to Pb-free. Compounded with advancements in miniaturization, Pb- free soldering's higher re-flow temperature and the nature of solder has resulted in poor reliability relative to: mechanical strength of the solder joint, warpage and thermal cycling performance. In response, YINCAE engineered low temperature solder joint encapsulation adhesives.
Technical Library | 2019-06-07 14:49:54.0
ACI Technologies was contacted in regards to poor solder joint reliability. The customer submitted an assembly that was exhibiting intermittent opens at multiple locations on a ball grid array (BGA) component. The assembly’s functionality did not survive international shipping, essentially shock and vibration failures, immediately making the quality of the solder joints suspect. The customer was asked about the contract manufacturer and the reflow oven profile as well as the solder paste and surface finish used. The ACI engineering staff evaluated the contract manufacturer’s technique and determined that they were competent in the methods they used for placing thermocouples in the proper locations and developing the reflow oven profile. The surface finish was unusual, but not unheard of, in that it was hard gold over hard nickel, rather than electroless nickel immersion gold (ENIG). The customer was able to supply boundary scan testing data which showed a diagonal row of troublesome BGA pins.
Technical Library | 2016-11-30 21:30:50.0
Mid-chip solder balling is a defect typically associated with solder paste exhibiting poor hot slump and/or insufficient wetting during the reflow soldering process, resulting in paste flowing under the component or onto the solder resist. Once molten, this solder is compressed and forced to the side of the component, causing mid-chip solder balling.This paper documents the experimental work performed to further understand the impact on mid-chip solder balling from both the manufacturing process and the flux chemistry.
Career Center | Oldsmar, Florida USA | Engineering,Maintenance,Production
Job Title: Assembler 2 – IPC 610 – 1st Shift Address: 3655 Tampa Rd, Oldsmar FL 34677 Duration: 1 year Pay Rate: $15-$18 Hours: 9/80 schedule Monday – Thursday 6:00AM – 3:30PM, Friday 6:00AM to 2:30PM Job Description: Use microscope to verify
Career Center | Oldsmar, Florida USA | Maintenance,Production
Job Description: • Uses microscope to verify correct part placement and orientation, manually align parts before soldering and perform post re-flow inspection and touch-up. • Able to identify and touch up poor wetted solder joints, solder voids / i
,989, Users: 41,258 Room Temperature Fast Flow Reworkable
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/00600-248.pdf
How Challenging Conventional Wisdom Can Optimize Solder Reflow With solder reflow, relying on commonlyaccepted practices can lead engineers tooverlook some relatively simple factors thatare critical
| https://www.eptac.com/faqs/ask-helena-leo/ask/solder-selection-for-printed-circuit-boards-and-terminals
? My second question is what kind of solder would you suggest for doing repair or adding a component to a surface mount board? Answer: The type of flux to be used is determined by the surfaces being soldered, such as HASL, OSP, ENIG, Gold, Pd, etc
