Elementary, Mr. Watson: High Power: When Physics Becomes Real
The Shaughnessy Report: Watt About Power Integrity?
Global PCB Connections: Understanding Your Fabricator’s Capabilities (or Niche)
A Challenge Facing Aerospace Designers In 2023
January 24, 2023 | Lee Ritchey, Speeding EdgeEstimated reading time: Less than a minute
As the aerospace industry has been tasked with fitting increasingly complex electronics in existing airframes the demands on PCB substrates have begun to overtask the existing state of the art in PCB fabrication.
Recently, I was called in to troubleshoot some reliability problems with a very dense PCB that had components on both sides and required the use of stacked blind vias and buried vias. The usual name for this kind of design is “build-up fabrication,” requiring many trips through the lamination, drilling, and plating operations at a fabricator.
The designers decided to reach down from the outer layer to the third layer below the surface using stacked blind vias.
The process used to create the structure in Figure 1 is to fabricate a PCB using the ordinary lamination, drilling, and plating processes employed for any multilayer PCB. Once this is done, a laser drill is used to create the first blind via at the bottom of the stack as shown in Figure 1.
To read this entire article, which appeared in the January 2023 issue of Design007 Magazine, click here.
Share on:
Testimonial
"Advertising in PCB007 Magazine has been a great way to showcase our bare board testers to the right audience. The I-Connect007 team makes the process smooth and professional. We’re proud to be featured in such a trusted publication."
Klaus Koziol - atgSuggested Items
Molex Announces Agreement to Acquire Smiths Interconnect
10/17/2025 | MolexMolex, a leading global electronics connectivity innovator, announced that it has signed an agreement to acquire Smiths Interconnect.
American Standard Circuits Achieves Successful AS9100 Recertification
10/14/2025 | American Standard CircuitsAmerican Standard Circuits (ASC), a leading manufacturer of advanced printed circuit boards, proudly announces the successful completion of its AS9100 recertification audit. This milestone reaffirms ASC’s ongoing commitment to the highest levels of quality, reliability, and process control required to serve aerospace, defense, space, and other mission-critical industries.
Kodiak Assembly Solutions Renews ITAR Registration, Providing Secure and Compliant Manufacturing for Defense & Aerospace
09/25/2025 | Kodiak Assembly SolutionsKodiak Assembly Solutions LLLP, a leading electronics contract manufacturer, has successfully renewed its ITAR (International Traffic in Arms Regulations) registration.
Cyient DLM, A Voice from the Frontlines
09/24/2025 | Arpita Das, Global Electronics AssociationOnce seen as a low-cost, build-to-print destination, India’s EMS sector is rapidly emerging as a global hub for high-reliability electronics, particularly in strategic sectors like aerospace, defense, and medical. As such, we highlight some companies that exemplify the strength and potential of Indian manufacturing.
Nortech Systems Achieves Enhanced Fiber Optic Performance
09/16/2025 | Nortech SystemsNortech Systems Incorporated, a leading provider of design and manufacturing solutions for complex electromedical devices and electromechanical systems, announced significant advancements in its fiber optic capabilities.