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Board Talk | ||||||||||
Board Talk is presented by Phil Zarrow and Jim Hall of ITM Consulting.
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Should stencil the aperture be home plate or inverted home plate? You know the performance difference between the two types. Which one is better? Jim Hall and Phil Zarrow, The Assembly Brothers, discuss this question and share their own insights. Board Talk A non-aerospace customer's board was repaired without authorization. Does an IPC document state that customer approval is required for class 3 repairs? Board Talk What temperature should the solder pot in our selective soldering machine be? Should the temperature be different from our wave system? Jim Hall and Phil Zarrow, also known as The Assembly Brothers, address these questions and share their expertise. Board Talk Our pallet manufacturer recommends titanium inserts to allow larger apertures near closely spaced surface mount components. Are they worth it? Board Talk When selective soldering the secondary side, we are producing solder balls on the primary side. What can be done to prevent this from happening? The Assembly Brothers, Phil Zarrow and Jim Hall, address this questions and share their own experiences. Board Talk A reader wonders about the current trends and practices for printing ultra-miniature chips, a la 01005. Seeking advice, they contacted Board Talk. Board Talk We have populated boards with components on both sides that are warped. Components are varied height. What methods can we use to flatten them? Phil Zarrow and Jim Hall, The Assembly Brothers, discuss their recommendations. Board Talk We clean R.F. assemblies by hand but want to switch to an automated process. Which process would be better vapor degreasing or aqueous? Board Talk Is there a calculation that can be used to predict solder balling? We would like to design our stencil apertures to ensure no mid-chip solder balls. The Assembly Brothers, Jim Hall and Phil Zarrow, discuss design suggestions to prevent solder balling. Board Talk On average, how many locations should we measure our PCBs to confirm our solder paste thickness? Our PCBs are approximately 10" by 10". Board Talk |
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