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Results tagged with manufacturing
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user 6334
2
votes
Do any SMT components require hand soldering due to heat limitations?
I can think of a few realistic situations that could have been distorted just slightly to get someone thinking there's SMT parts that can't take automated soldering:
An old part (SMT or through-hole …
- 131k
2
votes
Any script for detecting PCB size or the trace width/spacing
You should normally choose these limits before you begin layout, and set up design rules in your layout tool so that it will warn you if you violate them. Then generate your gerber from layout design …
- 131k
29
votes
Accepted
Why put unpopulated components on a BOM?
If you don't explicitly document that these components are not to be placed, you will inevitably have your manufacturing team notice that there is a location on the board with no corresponding line in …
- 131k
16
votes
Why are we still using resistors with 5% tolerance while they can even manufacture a 14.3181...
0.1% resistors are widely available. Digikey lists 59,000 part numbers. But the price is higher, like @ $0.04 in reel quantities, instead of $0.001 each for 5% tolerance.
If your design needs high t …
- 131k
41
votes
How do I make sure my electronics design is good from manufacturing perspective?
There's a thousand things to consider to reduce manufacturing costs, but some of the important ones are
Build in high volume. This spreads the set-up costs for a batch across more units. … For example, via-in-pad plated-over adds steps to board manufacturing, and mixing SMT with through-hole components adds steps to assembly.
Reduce the number of lines in the BOM. …
- 131k
2
votes
Do Professional Manufacturers Violate IPC Standards?
IPC rules don't really depend on the PCB manufacturing process. They're mainly about the PCB assembly process. …
- 131k