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
A man who gave his son the gun he used to kill two students and two teachers at Apalachee High School in Georgia was sentenced Thursday to 15 years in prison.
Colin Gray’s sentencing comes days after his son, Colt Gray, was sentenced to life in prison without the possibility of parole in the Sept. 4, 2024, shooting at the school 45 miles (70 kilometers) northeast of Atlanta. Colt Gray had pleaded guilty to murder and other charges.
A jury in March, found Colin Gray guilty of second-degree murder in the deaths of two 14-year-old students, Mason Schermerhorn and Christian Angulo. Georgia law defines second-degree murder as causing the death of a child by committing the crime of cruelty to children. Gray was also found guilty of involuntary manslaughter in the killings of teachers Richard Aspinwall, 39, and Cristina Irimie, 53.
Another teacher and eight other students were wounded, seven of them hit by gunfire. Colin Gray was also convicted of multiple counts of reckless conduct and cruelty to children.
He is among a handful of American parents who have been criminally charged after their children were accused in shootings.
Prosecutors said Colin Gray gave his son the rifle as a Christmas gift along with ammunition, a gun sight and other shooting accessories.
THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below.
A prosecutor asked a judge for what would effectively be a life sentence for a man who gave his son the gun used to kill two students and two teachers at Apalachee High School in Georgia after he was convicted of second-degree murder and involuntary manslaughter.
Colin Gray's sentencing hearing comes just days after his 16-year-old son, Colt Gray, was sentenced to serve life in prison without the possibility of parole. Colt Gray had pleaded guilty to murder and other charges in the Sept. 4, 2024, shooting at the school about 45 miles (70 kilometers) northeast of Atlanta.
A defense attorney for Colin Gray asked the judge for a sentence that would amount to 10 years in prison followed by 10 years on probation. The district attorney said Gray deserves a sentence of 80 years in prison. Judge Nicholas Primm, who sentenced Colt Gray earlier this week, is expected to announce Colin Gray's sentence Thursday afternoon.
The elder Gray is one of a handful of American parents who have been criminally charged after their children were accused in shootings.
A jury in March found Colin Gray guilty of second-degree murder in the deaths of two 14-year-old students, Mason Schermerhorn and Christian Angulo. Georgia law defines second-degree murder as causing the death of a child by committing the crime of cruelty to children. Gray was also found guilty of involuntary manslaughter in the killings of teachers Richard Aspinwall, 39, and Cristina Irimie, 53.
Another teacher and eight other students were wounded, seven of them hit by gunfire.
Family members of those who died and victims of the shooting condemned what they said were Gray's failures as a parent and urged the judge to give him the maximum sentence possible.
“This wasn’t unavoidable. This was preventable. Because of the choices made inside the Gray household, four families were handed life sentences of grief,” said Breanna Schermerhorn, whose son was killed.
“He did not pull the trigger but purchased and left a firearm accessible to a minor," said Shayna Aspinwall, whose husband was killed. She said the sentence must take into account "the families left behind who must carry the grief and trauma for the rest of our lives.”
Prosecutors say Colin Gray gave his son the rifle as a Christmas gift along with ammunition, a gun sight and other shooting accessories.
Barrow County Sheriff’s Office Investigator Jason Smith testified that Colt Gray carried the semiautomatic rifle onto the school bus with the barrel sticking out and wrapped in poster board. The teenager left his second-period class and went to a bathroom, emerged with the rifle and shot people in the hallway and a classroom, the investigator said.
Colt Gray, who was 14 at the time of the shooting, had shown signs of deteriorating mental health in the weeks leading up to the killings, according to testimony during his sentencing hearing. He belonged to a “true crime community” online where he and other young people discussed their obsession with mass shooters, an investigator testified.
The teen's mother, Marcee Gray, who was separated from Colin Gray, told investigators that she had argued with her estranged husband weeks before the shooting, asking him to secure his guns and restrict their son's access.
Colin Gray's attorney argued that Colt Gray “actively hid the depth of his involvement” in an online community obsessed with mass shooters. The red flags enumerated by prosecutors were spaced out and “surrounded by stretches of a child who laughed, who was bright, who loved his computer, video games, who played guitar, who went into the woods with his father,” attorney Brian Hobbs said.
A decades-long sentence would effectively be “death in prison” for his 55-year-old client, he said. By giving Gray essentially the same sentence as his son, the actual killer, the judge would be erasing the line in Georgia law “between the harm a person intends to do and the harm a person fails to prevent,” Hobbs argued.
Barrow County District Attorney Brad Smith countered that Colin Gray “was convicted for what he did know." Gray ignored “a substantial and unjustifiable risk," Smith said, displaying photos and news articles about the 2018 massacre at Florida’s Marjory Stoneman Douglas High School that hung on Colt Gray's bedroom wall.
“This was the risk that he was ignoring, that there would be a mass shooting of children at a school, and he gave his son the exact tool he would need to accomplish this," Smith said. "He is the reason four people are dead, seven were injured and countless others were traumatized, and he is the reason a 16-year-old boy was sentenced two days ago to the rest of his life in prison.”
Prosecutors have in recent years held parents responsible when they believe they can prove a parent contributed to a killing.
Jennifer and James Crumbley were the first U.S. parents to face such charges after their son, Ethan, killed four students and wounded others at Michigan’s Oxford High School in 2021. Like Colin Gray, they were unaware of their son’s plans but had gifted him a gun before the shooting. They are serving 10-year prison terms for involuntary manslaughter. Hobbs, the defense attorney, urged the judge to use that sentence as a guide.
This story has been corrected to show the school is called Apalachee High School, not Appalachee.
Colt Gray, the 16-year-old Apalachee High School shooting suspect, is led in by deputies for his sentencing at Barrow County Superior Court, Monday, July 27, 2026, in Winder, Ga. (Jason Getz/Atlanta Journal-Constitution via AP, Pool)
Colt Gray, the 16-year-old convicted in the Apalachee High School shooting, stands to be handcuffed following his sentencing at Barrow County Superior Court in Winder, Ga., on Tuesday, July 28, 2026. (Arvin Temkar/Atlanta Journal-Constitution via AP)
FILE - Colin Gray, the father of Apalachee High School shooting suspect Colt Gray, arrives to the courtroom at the Barrow County courthouse, Dec. 18, 2025, in Winder, Ga. (AP Photo/Brynn Anderson, File)
