FPC manufacturer：What is PCB Bow and Twist?
PCB Bow and Twist are parameters that determine alignment errors in a PCB board based on its flatness. The PCB Bow tests the spherical or cylindrical curvature of the board, when its four corners lie in the same plane. The PCB twist tests if any one corner of the PCB is different from the others four in terms of flatness. A board in FPC manufacturer with a bow issue will lift off the surface despite all corners of the board making contact with the plane. The twist occurs when three of the PCB corners are in contact with the surface while the fourth corner is elevated.
According to the IPC-A-600 standard in FPC manufacturer industry, boards with less than 1.5% of bow and twist are acceptable. In the case of the boards with SMD components, this percentage needs to be less than 0.75%.
PCB Bow and Twist can be used by a number of factors that include high temperature exposure, heavy thermal shocks during soldering etc. The board design, thickness, layers and materials also play a role in the board showing Bows and Twists over various fabrication, assembly or operating conditions.
Other news about S&L
- PCB factory china Challenges—Improve Your Switched-mode Power Supply Designs
- PCB supplier china：What is PCB?
- PCB manufacturer China: Talking about the application fields and characteristics of PCB
- Automotive PCB
- What is multilayer PCB?
- The Rigid flex PCB that can save the sales volume of Xiaopeng is the G7, an additional electric car
- High Frequency PCB (HFP)
- FPC Manufacturer
- Flexible PCB Manufacturer
- Top four Flexible PCB supplier china
Your browsing history
- Metal core PCB：Copper Weight in a PCB，Do You Know it?
- Flexible PCB supplier china：What Is The Etching Process In PCB Manufacturing
- PCB supplier china gives you 5 tips to expel bad mood in winter
- maintenance of equipment of PCB factory
- Mechanical drilling machine
- A handy VCR about flexible PCB manufacturing process flow
- PCB manufacturer China tells you the root cause of solderability issue
- How will Flex rigid PCB factory Sun&Lynn blow your mind at Electronica 2018?
- Flex rigid PCB：The Many types of Circuits Boards
- PCB factory china： PCB bonding process
A total of -comments【I want to comment】