KYOTO, Japan--(BUSINESS WIRE)--Apr 27, 2026--
Kyocera Corporation (President: Shiro Sakushima; “Kyocera”) today announced that it is commercializing a new multilayer ceramic core substrate for advanced semiconductor packages, such as xPUs (1) and switch ASICs, which are rapidly scaling in complexity as AI data center architectures evolve. The new product will be unveiled at ECTC 2026, an international conference on semiconductor packaging technologies, in Orlando, Florida, USA, May 26-29, 2026.
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Built from Kyocera’s proprietary Fine Ceramic materials, the new core substrate is engineered for high‑density wiring and exceptional rigidity. According to the company, these characteristics dramatically reduce deformation (warpage) in high-performance semiconductor packages, a key challenge as demand for greater device integration and higher processing speed continues to rise.
(1): xPU is a general term for various processing units (PUs) such as CPUs and GPUs that handle AI processing.
Key Features
Development Background
The growth of generative AI and large language models is fueling a global proliferation of AI data centers and creating demand for higher-performance xPU and ASIC semiconductors that require larger, denser package substrates, especially for 2.5D packaging (2). Core substrates made of organic materials create a bottleneck to higher performance, especially at larger dimensions, due to warpage and wiring-miniaturization challenges. Kyocera is addressing these limitations with a new multilayer ceramic core substrate, leveraging its expertise in laminated ceramic materials to offer higher rigidity and finer wiring in advanced semiconductor packaging.
(2) 2.5D packaging refers to a structure in which multiple IC chips are placed side-by-side on a high-density interposer (relay substrate) using fine circuit patterning and vertical interlayer wiring to enhance processing speed.
Features
1. Highly rigid multilayer ceramic core substrate minimizes warpage, a key challenge affecting large package substrates
Kyocera’s multilayer ceramic core substrate provides greater rigidity and resistance to deformation (bending) than core substrates made of organic materials, minimizing warpage during each mounting phase. As a result, Kyocera’s multilayer ceramic technology can enable higher device performance using slimmer substrates (3) while facilitating further miniaturization.
(3): Based on Kyocera’s simulation results (February 2026).
2. Multilayer ceramic structure enables finer wiring
In multilayer ceramic substrates, conductive paths between layers of ceramic are called vias. Formed while the ceramic is pliable (before firing or sintering), these vias enable finer wiring through superior micro-fabrication as compared to the drilling processes used to create vias in conventional organic core substrates. The smaller via diameters and tighter via pitches made possible in ceramic substrates address the challenges associated with high-density wiring in traditional organic-core substrates.
3. Supports custom design requirements, and performance simulations in the design phase
During the design phase, Kyocera provides thermal, electrical, and substrate-warpage simulations based on device performance objectives and specified mounting processes. This simulation data ensures greater customer development efficiency and the achievement of design objectives in the finished device.
Kyocera remains committed to developing new packaging materials and technologies that meet evolving customer needs in the semiconductor industry.
About KYOCERA
Kyocera Corporation (TOKYO:6971, https://global.kyocera.com/ ), the parent and global headquarters of the Kyocera Group, was founded in 1959 as a producer of Fine Ceramics (also known as “advanced ceramics”). By combining these engineered materials with metals and integrating them with other technologies, Kyocera has become a leading supplier of ceramic components for a wide range of industries, as well as automotive components, semiconductor packages, electronic devices, smart energy systems, printers, copiers, and mobile phones. During the year ended March 31, 2025, the company’s consolidated sales revenue totaled 2.0 trillion yen (approx. US$13.2 billion). Kyocera appears on Forbes magazine’s 2025 “Global 2000” list of the world’s largest publicly traded companies, and has been named among “The World’s 100 Most Sustainably Managed Companies” by The Wall Street Journal. In January 2026, Kyocera was named to Clarivate’s list of the “Top 100” Global Innovators for the fifth consecutive year.
© 2026 Kyocera Corporation
2.5D integration warpage comparison and simulation model
Multilayer ceramic core substrate for advanced semiconductor packaging
WASHINGTON (AP) — The man who authorities say tried to storm the White House Correspondents’ Association dinner with guns and knives was charged Monday with the attempted assassination of President Donald Trump as federal authorities suggested an attack that disrupted one of Washington's glitziest events had been planned for at least several weeks.
Cole Tomas Allen appeared in court Monday to face federal charges after the chaotic encounter Saturday that resulted in shots being fired, Trump being hurried off the stage unharmed and guests ducking for cover underneath their tables. He was ordered to remain jailed pending additional court hearings, and faces up to life in prison if convicted of the assassination count alone.
An FBI affidavit filed in the case reveals additional details about the planning behind the assault, with authorities alleging that Allen on April 6 reserved a room for himself at the Washington hotel where the event would be held weeks later under its typical tight security. He traveled by train cross-country from California last week, checking himself into the Washington Hilton one day before the dinner with a room reserved through the weekend.
The event had barely begun when officials say the 31-year-old Torrance, California, man, armed with a shotgun and pistol, tried to race past a security barricade near the cavernous ballroom holding hundreds of journalists and their guests, prompting an exchange of gunfire with Secret Service agents tasked with safeguarding the event.
“Violence has no place in civic life,” acting Attorney General Todd Blanche said at a news conference. “We will ensure accountability is swift and certain.”
Allen was injured but was not shot. A Secret Service officer was shot but was wearing a bullet-resistant vest and survived, officials say.
Questions remain about how many shots Allen fired and how many officers discharged their weapons.
Blanche said investigators believe that a Secret Service agent fired five shots and that Allen discharged his shotgun at least once. But Blanche didn’t say whether authorities have confirmed it was Allen’s bullet that struck the agent in the vest, or whether any other officers used their weapons. Blanche said ballistics experts are still examining evidence to provide more clarity on those questions.
The Justice Department charged Allen with two additional firearms counts, including discharging a weapon during a crime of violence, but the affidavit does not directly say that Allen was responsible for shooting the officer.
The shooting resulted in the cancellation of the dinner, the first Trump had attended as president.
White House press secretary Karoline Leavitt on Monday said the night was supposed to be one of joy but instead was “hijacked by a crazed anti-Trump individual who traveled across the country to assassinate the president and as many administration officials as possible.”
Allen invoked his constitutional right to remain silent after his arrest, but authorities say an email he sent to family members and a former employer helps shed light on a motive.
In the message, a copy of which was included in the affidavit, Allen referred to himself as a “Friendly Federal Assassin,” alluded obliquely to grievances over a range of Trump administration actions. The rambling text moves between confession, grievance and farewell, with Allen apologizing to family members, co-workers and even strangers he feared could be caught in the violence while at the same time seeking to explain the attack.
A magistrate judge granted a prosecutor's request to keep Allen locked up pending additional hearings, including a detention hearing set for Thursday.
Allen did not speak at length during the quick appearance, as is customary, though one of his lawyers, Texira Abe, noted that he has no criminal record.
“He also is presumed innocent at this time," she said.
The Associated Press called multiple phone numbers listed for Allen and relatives in public records, and there was no answer when a reporter knocked on the door of his home.
Records reveal that Allen is a highly educated tutor and amateur video game developer. A social media profile for a man with the same name and a photo that appears to match that of the suspect show he worked part-time for the last six years at a company that offers admissions counseling and test preparation services to aspiring college students.
Voter registration records from California lists Allen’s home address as his parent’s house on a tree-lined street in one of the most historic neighborhoods in Torrance, a city within the Los Angeles metro area. No one answered the door Sunday when an Associated Press reporter knocked. By the afternoon, several people who appeared to be law enforcement agents were canvassing the neighborhood, with one wearing an FBI sweatshirt.
A yard sign displayed at the family home supported a local candidate for judge who was endorsed by the Los Angeles County Democratic Party. Federal campaign finance records show Cole Allen contributed $25 to a Democratic Party political action committee in support of Kamala Harris for president in 2024 and listed his employer as C2 Education.
He earned a bachelor’s degree in 2017 in mechanical engineering from the California Institute of Technology in Pasadena, according to his profile on the social networking site LinkedIn. The small university is academically prestigious with a very low acceptance rate. He also listed his involvement there in a campus group that battled with Nerf guns and a Christian student fellowship.
Allen’s profile photo on LinkedIn shows him wearing a cap and gown when graduating with a master’s degree in computer science from California State University, Dominguez Hills. The photo appears to have been taken May 2025.
Associated Press writers Gary Fields and Collin Binkley contributed to this report.
Acting Attorney General Todd Blanche, with U.S. Attorney Jeanine Pirro, left, and FBI Director Kash Patel, right, speaks during a news conference at the Department of Justice, on Monday April 27, 2026, in Washington, following the initial appearance in federal court of the suspected White House Correspondents Dinner gunman, Cole Tomas Allen of Torrance, California. (AP Photo/Manuel Balce Ceneta)
This courtroom sketch depicts Cole Tomas Allen, left, the California man arrested in the shooting incident at the correspondents dinner in Washington, seen appearing before Magistrate Judge Matthew J. Sharbaugh, in federal court, Monday, April 27, 2026 in Washington. (Dana Verkouteren via AP)
Law enforcement respond to an incident at the Washington Hilton during the White House Correspondents Dinner, Saturday, April 25, 2026, in Washington. (AP Photo/Allison Robbert)
Secret service agents respond during the White House Correspondents Dinner, Saturday, April 25, 2026, in Washington. (AP Photo/Tom Brenner)
Pedestrians walk past the home, middle back, connected to Cole Tomas Allen, who was identified as the suspect at the White House Correspondents Dinner shooting, as members of the media stage, in Torrance, Calif., Sunday, April 26, 2026. (Stephen Lam/San Francisco Chronicle via AP)
Members of law enforcement control shooting suspect Cole Tomas Allen during the White House Correspondents Dinner, Saturday, April 25, 2026, in Washington. (AP Photo/Alex Brandon) ADDITION: Adds name of shooting suspect after name shared by law enforcement officials
Attendees and hotel workers evacuate after an incident at the Washington Hilton during the White House Correspondents Dinner, Saturday, April 25, 2026, in Washington. (AP Photo/Mark Schiefelbein)
