Wuxi Tongbu Claims Main Yield Breakthrough in Excessive-Frequency Hybrid PCB Manufacturing
In a strategic transfer to dominate the high-end electronics market, Wuxi Tongbu Digital Expertise has filed a patent for a novel high-frequency mixed-pressure Printed Circuit Board that guarantees yield charges between 83.3% and 92.5%.
The patent, filed in early 2026 and now being reported by Chinese language media, particulars a producing course of that solves the power business headache of bonding mismatched supplies right into a single, high-performance motherboard. The know-how facilities on a classy interconnect construction. By integrating a number of sub-boards with every using specialised high-frequency cores and prepregs, Tongbu has engineered a vertical interconnect system utilizing copper paste sintering. Not like conventional drilling and plating strategies that usually fail in ultra-thick or advanced hybrid boards, this methodology makes use of sintered copper columns to fill cross-blind holes. This creates a extremely dependable electrical path that may face up to the acute thermal and sign necessities of 6G telecommunications and aerospace {hardware}.
For American companies like TTM Applied sciences and Sierra Circuits, Tongbu’s reported yield charges are a major information level. Whereas Western producers have historically held the sting in quick-turn prototypes and high-reliability aerospace boards, they typically face a yield hole when scaling advanced hybrid constructions to mass manufacturing.
In the US, attaining over 80% yield on ultra-thick, hybrid-material boards is commonly thought of a gold customary for specialised batches. Tongbu’s declare of reaching as much as 92.5% suggests an automatic precision that might underprice American opponents who depend on extra handbook, iterative high quality management.
Western leaders like MacDermid Alpha have pioneered copper sintering supplies, however Chinese language companies are more and more integrating these chemical improvements instantly into proprietary all-in-one fabrication patents. For the U.S. protection and medical sectors, this patent highlights a narrowing hole.
Whereas American corporations like Sanmina prioritize ITAR compliance and IP safety, Chinese language companies are specializing in mass-market complexity—the flexibility to construct extremely troublesome {hardware} at a scale and reliability that was as soon as unique to Western boutique fabricators. By fixing the sintering integration puzzle, Wuxi Tongbu is signaling that the following era of high-speed {hardware} could be cheaper and extra dependable to construct in Wuxi than in Silicon Valley.
