A single BOM line is costing roughly 100-200 CHF (ordering,
putting roll on machine etc.) and you will save time for
yourself (checking BOM, ordering).
It will also reduce the risk of mounting the wrong components.
Print the BOM, check the resistor values used and see if you can
remove some values by putting them in parallel or series (or
actually taking existing values that are as good).
The same for capacitors (cf.
SVEC: 9 C-types, 16
Check if high precision or high power components that are used
(e.g. 0.1% or 0.5W) are really needed.
Avoid through-hole components as they should be manually
See if potentiometers in the final design can be replaced by a
fixed value resistor (reduces production and calibration costs).
Print out the power and ground list for all ICs and check if they’re
Print out the netlist, sort alphabetically and check for any
inconsistencies (in naming, bus signals all used).
This takes some time, but really can show non-obvious mistakes.
For any newly created symbols, check the pin numbering.
CERN specific: check if only symbols created by the design
office are used.
Verify that the BOM is describing fully the components used.
Manufacturer, Manufacturer full ordering number (including
package and speed): e.g., LINEAR TECHNOLOGY LT1931ES5#TRMPBF.
For generic components: all parameters are defined in the
symbol: e.g., GENERIC R0603_220R_1%_0.1W_100PPM.