-
- News
- Books
Featured Books
- design007 Magazine
Latest Issues
Current IssueAll About That Route
Most designers favor manual routing, but today's interactive autorouters may be changing designers' minds by allowing users more direct control. In this issue, our expert contributors discuss a variety of manual and autorouting strategies.
Creating the Ideal Data Package
Why is it so difficult to create the ideal data package? Many of these simple errors can be alleviated by paying attention to detail—and knowing what issues to look out for. So, this month, our experts weigh in on the best practices for creating the ideal design data package for your design.
Designing Through the Noise
Our experts discuss the constantly evolving world of RF design, including the many tradeoffs, material considerations, and design tips and techniques that designers and design engineers need to know to succeed in this high-frequency realm.
- Articles
- Columns
- Links
- Media kit
||| MENU - design007 Magazine
Ucamco Seeks Comments on Including Fab Documentation in Gerber
March 8, 2017 | Karel Tavernier, UcamcoEstimated reading time: 2 minutes
At Ucamco, we are dedicated to excellence in everything that we do. That includes our decades-long stewardship of Gerber, the de facto standard image format for PCB design: our ongoing work on Gerber ensures that this free, open format keeps abreast of, and indeed drives, beneficial developments in PCB design and engineering. Our work draws on our deep understanding of the needs of the PCB industry and its design and engineering functions, but also on the invaluable feedback that we receive from you as designers and engineers—because your day-to-day experience of what it means to use our hardware and software makes you the real experts.
Now, we welcome your input on our latest proposal, which is to include the fabrication documentation in Gerber. Our principal aim in doing so is to make life easier for electronics design, manufacturing and assembly professionals by facilitating clear, unequivocal communications prior to production. Our draft document proposes an evolutionary extension of Gerber that enables production parameters to be communicated in a standard format that can be put through an automatic workflow. Far from being a full and final draft, it is intended as a discussion document to solicit input and reach a consensus in the user community on how to handle these parameters. The proposal will probably go through several revisions based on this input.
Further reading
Since time immemorial, Gerber has been the standard for describing the 2D images – copper layers, solder mask, drills – in PCB fabrication data. Now, attributes added with Gerber X2 provide a standard for defining the layer structure, a “which layer is which” file, and to "add intelligence" to the image by providing information such as via and SMD identification, pin numbers and reference descriptions.
But PCB fabrication data is not just about describing images. It must also include general information about the final PCB; production parameters such as solder mask color, finish, overall thickness, materials and the assembly array definition. These parameters cannot be conveyed effectively by an image and yet they are essential for the quoting, planning, engineering, CAM and fabrication of the bare board as well as for determining the optimal assembly array.
As there is currently no standard for this sort of data, it is typically transferred informally using drawings, PDF files and e-mail messages. None of these are designed for automatic workflow, so the information must necessarily be handled by people, which takes precious time and carries the risk of errors.
Our aim is to create, with your input, a simple, standard way of conveying this sort of data in a format that can be handled automatically. The standard must be easy to adopt and to implement, it must be compatible with existing workflows, and it must allow for partial implementations as some applications may only “know” a few production parameters.
Please read the proposed new draft specification here and let us know what you think by sending your comments to us at gerber@ucamco.com.
We invite you to look at the proposal, and we look forward to hearing from you.
Thank you.
Karel Tavernier,
Managing Director,
Ucamco
Suggested Items
Driving Innovation: Direct Imaging vs. Conventional Exposure
07/01/2025 | Simon Khesin -- Column: Driving InnovationMy first camera used Kodak film. I even experimented with developing photos in the bathroom, though I usually dropped the film off at a Kodak center and received the prints two weeks later, only to discover that some images were out of focus or poorly framed. Today, every smartphone contains a high-quality camera capable of producing stunning images instantly.
Hands-On Demos Now Available for Apollo Seiko’s EF and AF Selective Soldering Lines
06/30/2025 | Apollo SeikoApollo Seiko, a leading innovator in soldering technology, is excited to spotlight its expanded lineup of EF and AF Series Selective Soldering Systems, now available for live demonstrations in its newly dedicated demo room.
Indium Corporation Expert to Present on Automotive and Industrial Solder Bonding Solutions at Global Electronics Association Workshop
06/26/2025 | IndiumIndium Corporation Principal Engineer, Advanced Materials, Andy Mackie, Ph.D., MSc, will deliver a technical presentation on innovative solder bonding solutions for automotive and industrial applications at the Global Electronics A
Fresh PCB Concepts: Assembly Challenges with Micro Components and Standard Solder Mask Practices
06/26/2025 | Team NCAB -- Column: Fresh PCB ConceptsMicro components have redefined what is possible in PCB design. With package sizes like 01005 and 0201 becoming more common in high-density layouts, designers are now expected to pack more performance into smaller spaces than ever before. While these advancements support miniaturization and functionality, they introduce new assembly challenges, particularly with traditional solder mask and legend application processes.
Knocking Down the Bone Pile: Tin Whisker Mitigation in Aerospace Applications, Part 3
06/25/2025 | Nash Bell -- Column: Knocking Down the Bone PileTin whiskers are slender, hair-like metallic growths that can develop on the surface of tin-plated electronic components. Typically measuring a few micrometers in diameter and growing several millimeters in length, they form through an electrochemical process influenced by environmental factors such as temperature variations, mechanical or compressive stress, and the aging of solder alloys.