The Right Approach: Get Ready for ISO 9001 Version 6
Dan’s Biz Bookshelf: ‘Still Broke: Walmart’s Remarkable Transformation'
Driving Innovation: Depth Routing Processes—Achieving Unparalleled Precision in Complex PCBs
OKI Develops 124-Layer PCB Technology for Next-Generation AI Semiconductor Testing Equipment
April 28, 2025 | BUSINESS WIREEstimated reading time: 1 minute
OKI Circuit Technology, the OKI Group printed circuit board (PCB) company, has successfully developed 124-layer PCB technology for wafer inspection equipment designed for next-generation high bandwidth memory, such as HBM mounted on AI semiconductors. This is a roughly 15% increase in the number of layers over conventional 108-layer designs. OTC is seeking to establish mass production technology by October 2025 at its Joetsu Plant in Joetsu City, Niigata Prefecture, which has a proven track record and advanced development and production capabilities in the field of high multilayer, high-precision, large-format PCBs for semiconductor inspection equipment.
AI processing requires the transmission of vast data volumes between graphics processing unit (GPU) semiconductors and memory. As semiconductor performance increases, the memory installed is also required to have high-speed, high-frequency, and high-density data transfer capabilities. HBM features a stacked DRAM structure, requiring technology capable of fabricating wafers even more thinly and precisely. This configuration also requires that the PCBs used in inspection equipment meet even higher levels of performance and quality.
Since the latest semiconductors process an enormous number of signals and the number of wafer-mounted chips increases due to process miniaturization, it is necessary to increase density and more layers on the PCBs used in inspection equipment. Nevertheless, PCB thickness has been limited to 7.6 mm due to various constraints, and 108 layers was the maximum limit with conventional technology. This time, by developing ultra-thin materials and tools and handling technologies suitable for ultra-thin materials, together with developing and introducing a proprietary automatic transport system for ultra-thin materials into its production line, OTC has successfully developed 124-layer PCB technology with a board thickness of 7.6 mm.
OKI is actively engaged in its EMS business based on the core idea of providing comprehensive manufacturing services from design to production and reliability testing. OKI places a particular focus on technology development in the PCB business, and this new technology was developed in response specifically to the areas expected to show future growth, including AI semiconductors, aerospace, defense, robotics, and next-generation communications. OKI will continue to develop PCBs and manufacturing technologies to respond to future progress in technology.
OTC will exhibit at the OTC booth (No.305) at PCB East 2025, which will be held at the Boxboro Regency Hotel and Conference Center in Massachusetts, USA from April 30 to May 2, 2025, to introduce this technology.
Share on:
Testimonial
"The I-Connect007 team is outstanding—kind, responsive, and a true marketing partner. Their design team created fresh, eye-catching ads, and their editorial support polished our content to let our brand shine. Thank you all! "
Sweeney Ng - CEE PCBSuggested Items
EV Group Achieves Breakthrough in Hybrid Bonding Overlay Control for Chiplet Integration
09/12/2025 | EV GroupEV Group (EVG), a leading provider of innovative process solutions and expertise serving leading-edge and future semiconductor designs and chip integration schemes, today unveiled the EVG®40 D2W—the first dedicated die-to-wafer overlay metrology platform to deliver 100 percent die overlay measurement on 300-mm wafers at high precision and speeds needed for production environments. With up to 15X higher throughput than EVG’s industry benchmark EVG®40 NT2 system designed for hybrid wafer bonding metrology, the new EVG40 D2W enables chipmakers to verify die placement accuracy and take rapid corrective action, improving process control and yield in high-volume manufacturing (HVM).
ROHM Develops Ultra-Compact CMOS Op Amp: Delivering Industry-Leading Ultra-Low Circuit Current
09/11/2025 | ROHMROHM’s ultra-compact CMOS Operational Amplifier (op amp) TLR1901GXZ achieves the industry’s lowest operating circuit current.
I-Connect007 Launches New Podcast Series on Ultra High Density Interconnect (UHDI)
09/12/2025 | I-Connect007I-Connect007 is excited to announce the debut of its latest On the Line With... podcast series, which shines a spotlight on one of the most important emerging innovations in electronics manufacturing: Ultra-High-Density Interconnect (UHDI).
I-Connect007 Launches New Podcast Series on Ultra High Density Interconnect (UHDI)
09/10/2025 | I-Connect007I-Connect007 is excited to announce the debut of its latest podcast series, which shines a spotlight on one of the most important emerging innovations in electronics manufacturing: Ultra-High-Density Interconnect (UHDI). The series kicks off with Episode One, “Ultra HDI: What does it mean to people? Why would they want it?” Host Nolan Johnson is joined by guest expert John Johnson, Director of Quality and Advanced Technology at American Standard Circuits (ASC).
KYZEN to Feature High-Reliability MICRONOX Chemistries at IMAPS Symposium
09/10/2025 | KYZEN'KYZEN, the global leader in innovative environmentally responsible cleaning chemistries, is pleased to announce its participation at the International Symposium on Microelectronics or IMAPS Symposium, taking place September 29-October 3 at Town & Country Resort in San Diego, CA.