Common Unit Conversion Formulas for Printed Circuit Boards (PCBs) - Shenzhen PCB Factory
Time:2019-04-10
Common unit conversion formula for PCB:
For personnel engaged in the PCB industry, it is inevitable to encounter various units of data. Conversion between various units is also often necessary. It is often necessary to search for conversion values. In order to facilitate the use and learning of PCB practitioners, PCB engineering, PCB electronic engineers, and other personnel. Below are examples of conversion values between various units for your reference. Both Chinese and English abbreviations are indicated. We believe that the unit conversions below are worth learning. Below are examples of conversion values between various units for your reference. Both Chinese and English abbreviations are indicated. We believe that the unit conversions below are worth learning
Common units for line width/line spacing/coating thickness: 1um (1 micron)=0.001mm (0.001 millimeter)
1um=0.03937 mil
1um=40uin (some companies refer to micro inches as microphones, but they are actually micro inches)
1um (1 micron)=0.001mm
1mil=0.0254MM (conversion reason: 1mil=1/1000inch=0.00254cm=0.0254mm)
It is known that 4mil/4mil=0.1mm/0.1mm line width and line spacing 1mil=25.4um 1mil=1000uin mil. Sometimes, it is also known as a wire gauge (commonly used unit for PCB board copper thickness) 1OZ (ounce)=35UM (micrometer)=28.35 grams/square foot
1OZ (ounce)=28.35 grams, which is an imperial unit
1OZ (ounce)=28.35 grams per square foot=35UM micrometers H/H=18um/18um micrometers double-sided panel, both sides are 18UM copper thick, three relatively uncommon digits conversion:
1 foot equals 12 inches
1 inch=1000 mil
1ASD=1 ampere per square decimeter=10.76 ampere per square foot (1 square decimeter=10.76 square feet)
1AM=1 ampere minute=60 coulombs is mainly used for precious metal electroplating such as gold plating
1 square foot=9.29 square decimeters 1 gallon (Imperial)=4.5 liters
1 gallon in US system=3.785 liters
1KHA=1000 ampere hours
1 ampere hour=3600 coulombs
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