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This month, our expert contributors discuss the impact of advanced packaging on stackup design—from SI and DFM challenges through the variety of material tradeoffs that designers must contend with in HDI and UHDI.
Rules of Thumb
This month, we delve into rules of thumb—which ones work, which ones should be avoided. Rules of thumb are everywhere, but there may be hundreds of rules of thumb for PCB design. How do we separate the wheat from the chaff, so to speak?
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Our expert contributors provide a complete, detailed view of partial HDI this month. Most experienced PCB designers can start using this approach right away, but you need to know these tips, tricks and techniques first.
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U.S. Economy Remains Resilient, but Headwinds Loom in Months Ahead
September 8, 2023 | IPCEstimated reading time: 1 minute
The forecast for U.S. economic growth, initially expected to be 0.5 percent at the beginning of 2023, is now expected to grow by 2 percent. While the U.S. economy has surpassed expectations, the Federal Reserve has raised rates significantly over the last year, signaling tremendous headwinds as those rates take effect. In Europe, growth in the Eurozone expanded by 0.3 percent compared to the previous quarter, marking the most substantial growth since the second quarter of 2022, according to IPC’s August 2023 Economic Outlook report.
According to Shawn DuBravac, IPC chief economist, “The coming months will be crucial in determining the trajectory of the U.S. economy, with a keen eye on the Federal Reserve’s strategies to balance growth and inflation concerns.”
Additional data in the August IPC Economic Outlook show:
- In the U.S., infrastructure investments are poised to give a boost to the construction sector, potentially offsetting some of the slowdown in other areas of the economy.
- The U.S. manufacturing sector recorded a strong month, reporting output gains rose 0.5 percent in July, the first gain in three months. Auto and non-auto manufacturing both posted increases, rising 5.2 percent and 0.1 percent, respectively.
- The U.S. New Orders Index suggests orders remain soft, but manufacturers appear to be managing slower orders well.
- In Europe, the economies of France and Spain demonstrated positive growth, spurred by a surge in exports in France and a rebound in domestic demand in Spain.
- In the second quarter of 2023, employment rose by 0.2 percent in both the Eurozone and the EU. During the first quarter of 2023, both regions witnessed a more substantial increase in employment, with a growth rate of 0.5 percent.
Suggested Items
Are Our Stackup Rules No Longer Valid?
12/19/2024 | Cherie Litson, EPTAC MIT CID/CID+Are the stackup rules we used to follow no longer valid? It depends on what you’re designing. Electrical rules change depending on your circuit. Fabrication rules change depending on which fabricator you’re working with. Today, we just have more options, and sometimes, cost is a bigger rule than anything else. If you search online for information about layer stackups, trace widths, and hole sizes in PCBs, you’ll find a variety of resources.
IPC/WHMA Launches Groundbreaking Online Course on Wire Harness Design
12/18/2024 | IPCIPC/WHMA is excited to announce the launch of its new online instructor-led training course, "Introduction to Wire Harness Design I," available now through the IPC EDGE Learning Management System.
IPC Releases Latest List of Standards and Revisions
12/17/2024 | IPC Community Editorial TeamEach quarter, IPC releases a list of standards that are new or have been updated. To view a complete list of newly published standards and standards revisions, translations, proposed standards for ballot, final drafts for industry review, working drafts, and project approvals, visit ipc.org/status. These are the latest releases for Q4 2024.
IPC, FED Partner for New Design Conference in Vienna
12/12/2024 | Andy Shaughnessy, Design007 MagazineIPC and its German partner FED have teamed up to create a new PCB design conference in Vienna, Austria. The Pan-European Electronics Design Conference (PEDC) is scheduled for Jan. 29-30 at the NH Danube City hotel in Vienna. IPC’s Peter Tranitz, one of the show organizers, discussed how this new show came about, pointing out that, unlike many of the regional conferences in Europe, PEDC will host curated, peer-reviewed presentations, not promotional content or product pitches. Will PEDC become an annual event?
Happy’s Tech Talk #35: Yields March to Design Rules
12/12/2024 | Happy Holden -- Column: Happy’s Tech TalkUltra high density interconnect (UHDI) has many forms, structures, and alternatives, so capturing all the variations and reducing them to design rules has required some departures from traditional IPC design standards. In this column, I’ll be discussing the IPC UHDI design guidelines and standards. The fundamental question is: “Do you need HDI or microvias?”