Design Optimization: How to Avoid Incomplete Milling of Internal Corners in PCB Panels
2 min
When panelizing PCBs with no gap between boards, the outlines of adjacent boards can sometimes form sharp internal corners that cannot be accurately routed without artefacts such as spurs or indents. Panels like this need to be redesigned to ensure complete, spur-free board outlines.
| Example V-Cut Panel With Three Boards |
Two Possible Routing Strategies And Results
Because the router bit is round, it's unable to reach into tight corners. The unreached parts become sharp spurs after separating the boards. | In order to recreate the rounded corners of each board, the router bit must cut into their adjacent boards, altering their outline. |
Optimization Strategies
Four Improvement Strategies for the Example Panel
| 1. Add drilled holes at internal corners | 2. Add separation and mouse bites between boards |
Pro: Removes the majority of unreachable material Con: Small spurs remain | Pro: Clean outlines with no spurs Con: Jagged edges at the mouse bites after separation |
3. Add separation between boards and connect on sides with tooling strips | 4. Add sacrificial strips between boards |
Pro: Clean outlines with no spurs Con: Need tooling strips to hold boards together | Pro: Clean outlines with no spurs by allowing overcut Con: Slightly larger board area – higher cost |
Keep Learning
Design for Manufacturing and Assembly (DFMA): Optimizing Efficiency in Product Development
Design for Manufacturing and Assembly (DFMA) is an essential engineering tool that helps products be simpler to manufacture and assemble. DFMA enables businesses to reduce costs, prevent errors, and hasten product introduction, by combining the design and manufacturing processes. In areas such as electronics, automotive, aircraft, and consumer goods where exact and complex products are highly valued, this approach performs particularly effectively. highlighting fundamental ideas, advantages, and the b......
Design for Manufacturing (DFM): A Comprehensive Guide for Optimizing Production
Maintaining quality while improving the manufacturing process is critically important in the competitive fields of electronics and industry. Design for Manufacturing (DFM) here comes in handy. DFM is a design tool stressing the simplicity of manufacturing during the product development stage. Early on manufacturing limitations help DFM to guarantee that goods are not only useful but also reasonably priced, dependable, and easily produced at large-scale production. This article covers the importance of......
Understanding the Importance of DFM Analysis in PCB Design
Design for Manufacturing (DFM) analysis helps you on whether a printed circuit board (PCB) is fit for manufacturing, assembly, and sales. Early in the planning process, it looks for and fixes any possible problems arising throughout production. This will increase manufacturing efficiency and help to save expenses. DFM analysis is quite vital in the complex world of electronics, where even little design errors can create delays costing a lot of money. This article discusses the different types of DFM i......
Role of DFM Manufacturing in PCB Design
Design for Manufacturing (DFM) is crucial to make sure Printed Circuit Board (PCB) manufacture runs smoothly and fast. DFM manufacturing main focus is to makes PCBs as simple as feasible since it reduces errors, expenses, and production time. Engineers make a more stable product with fewer design-to-production problems when they think about manufacturing limitations during the design phase. This article will discuss about the basics of DFM manufacturing in PCB design, show why it is important, and giv......
SMT or Through Hole Technology？Which is Better for Your Project？
When designing and manufacturing electronics, one of the most important steps is selecting the appropriate assembly method. Nowadays we have through-hole technology and surface mount technology, which become the industry standards and are the two main approaches. The surface-mount technology (SMT) uses components that are perfectly aligned with the PCB surface. On the other hand through-hole technology (THT) uses leads that are placed into pre-drilled holes in the PCB and thereafter soldered. Consider......
FPC Panelization Design Standards and Requirements
FPC (Flexible Printed Circuit Board ) panelization is the process of arranging multiple FPC boards onto a single panel for efficient production. Proper panelization is crucial for optimizing material utilization, reducing production costs, and ensuring product quality. This article provides comprehensive FPC panelization design standards and requirements to guide engineers in creating optimal panel designs. General Panelization Guidelines Irregularly Shaped Frames: For irregularly shaped FPC frames, c......