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Board Talk | ||||||||||
Board Talk is presented by Phil Zarrow and Jim Hall of ITM Consulting.
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We mistakenly assembled circuit boards using BGA components that were not properly stored. Can we now rebake the assemblies? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss this question and share their own experiences and expertise. Board Talk IPC 610 defines class three to include products where the end use environment may be uncommonly harsh. How is uncommonly harsh defined? Board Talk Rework on a coated assembly happens often. How do you verify cleanliness of the rework site prior to re-coating? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss this question and share their expertise. Board Talk Are old components such as resistors and circuit breakers more likely to cause blowholes during wave soldering compared to newer components? Board Talk How long will the industry continue to use through hole components? I can envision connectors being used for some time, what about component types? Phil Zarrow and Jim Hall, The Assembly Brothers, discuss this question. Board Talk What are the pros and cons of assembling circuit boards with BGA components on both sides? Should we first place BGAs on side one or side two? Board Talk What is a good test for flux penetration through plated hole barrels on plated through hole circuit boards? Jim Hall and PHil Zarrow, also known as The Assembly Brothers, answer this question and share their own experiences and knowledge. Board Talk We are setting up an assembly line for small line production. We prefer a 5-zone oven. Will five zones be enough to ensure a reliable reflow process? Board Talk We are having problems achieving the minimum hole fill of 75% on electrolytic capacitors using our wave soldering. What do you suggest? The Assembly Brothers, Jim Hall and Phil Zarrow, discuss this question and share their own advice. Board Talk We have a PCB with a HASL surface finish, the assembly includes a 256 ball BGA. The component balls are .6 mm pitch. Is coplanarity a concern? Board Talk |
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