TOKYO--(BUSINESS WIRE)--Sep 3, 2025--
Resonac Corporation (President and CEO: Hidehito Takahashi, hereinafter “Resonac”) today announced the establishment of "JOINT3," a co-creation evaluation framework formed by a consortium comprising Resonac and 26 other companies from Japan, the United States, Singapore, etc. These companies, all significant global leaders in the semiconductor supply chain, will jointly develop materials, equipment, and design tools optimized for panel-level organic interposers—semiconductor packaging technology that utilizes organic materials to create a bridge between different components on a circuit board—using a prototype production line for the manufacture of 515 x 510mm panel-level organic interposers.
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The APLIC building (exterior Image)
JOINT3 Logo (Participating company logos)
The number of interposers obtainable from a circular wafer and a square panel
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Resonac will establish an "Advanced Panel Level Interposer Center (APLIC)" as the main hub for this initiative within its Shimodate Plant (Minami-yuki) in Yuki City, in Japan’s Ibaraki Prefecture. APLIC will house the prototype production line, which is scheduled to commence operations in 2026.
Here, the Consortium will accelerate development efforts by delivering verification results that closely mirror real-world structures.
In recent years, packaging for back-end processes has emerged as a key technology in the field of next-generation semiconductors. This includes 2.xD packages, whereby multiple semiconductor chips are arranged in parallel and connected via interposers, demand for which is expected to grow in line with the need for increased data communication capacity and speed. As semiconductor performance improves, interposers are becoming larger, and there is a shift from silicon interposers to organic interposers made from organic materials.
Conventional manufacturing methods involve cutting rectangular pieces from circular wafers. However, as interposers increase in size, the number of them that can be obtained from a single wafer decreases, posing a significant challenge. To address this issue, a manufacturing process that transitions from circular wafer shapes to square panel shapes is gaining attention, as it allows for an increased number of interposers to be produced from a given area of wafer.
As leader of the JOINT3 consortium, Resonac will propose R&D priorities, managing the operation of the prototype production line and driving the overall progress of the initiative. Through co-creation with participating companies, Resonac will also promote the development of materials optimized for panel-level organic interposers.
Hidehito Takahashi, President and CEO of Resonac Holdings Corporation stated "JOINT3 brings together world-class companies from a variety of fields. Combining the complementary strengths and expertise of each company allows us to collectively address challenges in areas that were previously unreachable. This endeavor goes beyond mere technological development and will lead to solutions that address societal challenges. We are excited by the potential that this initiative offers."
Sumie Segawa, Vice President & General Manager, Division Officer, Corporate Innovation Division of Tokyo Electron Ltd., a participating company, commented, "Advanced packaging for AI semiconductors depends on miniaturization for high speed signaling and lower power, together with scaling for greater capacity. By combining JOINT3’s interposer technology with Japan’s superior materials and processing expertise, we will enable high quality, reliable manufacturing and jointly pursue further advances in AI semiconductors."
William F. Mackenzie, Group Managing Executive Officer, Ushio Inc., another participating company, remarked, "Advanced packaging is entering a new era, demanding innovation and collaboration across the ecosystem. As a core enabler, lithography is key to meeting these challenges. Through our Digital Lithography Technology and partnership in the JOINT3 consortium, Ushio is working with industry leaders to deliver the precision and performance the future demands."
Resonac will leverage the knowledge gained from the semiconductor packaging technology development consortia "JOINT" and "JOINT2," which transcend the boundaries of semiconductor equipment and materials manufacturers, as well as that sourced from "US-JOINT," which is being developed in Silicon Valley in the United States. By doing so, Resonac aim to contribute to technological innovation in next-generation semiconductor packaging.
Overview of JOINT3
[About Resonac]
Resonac is a functional chemical company established as a result of the integration of Showa Denko and former Hitachi Chemical in January 2023. The Company is a world-class leader particularly in semiconductor materials for packaging process.
The APLIC building (exterior Image)
JOINT3 Logo (Participating company logos)
The number of interposers obtainable from a circular wafer and a square panel
The U.N. Security Council scheduled an emergency meeting Thursday to discuss Iran's deadly protests at the request of the United States, even as President Donald Trump left unclear what actions he would take against the Islamic state.
Tehran appeared to make conciliatory statements in an effort to defuse the situation after Trump threatened to take action to stop further killing of protesters, including the execution of anyone detained in Tehran’s bloody crackdown on nationwide protests.
Iran’s crackdown on the demonstrations has killed at least 2,615, the U.S.-based Human Rights Activists News Agency reported. The death toll exceeds any other round of protest or unrest in Iran in decades and recalls the chaos surrounding the country’s 1979 Islamic Revolution.
The sound of gunfire faded Thursday in the capital, Tehran. The country closed its airspace to commercial flights for hours without explanation early Thursday and some personnel at a key U.S. military base in Qatar were advised to evacuate. The U.S. Embassy in Kuwait also ordered its personnel to “temporary halt” travel to the multiple military bases in the small Gulf Arab country.
Here is the latest:
Canada’s foreign minister says a Canadian citizen has died in Iran “at the hands of the Iranian authorities.”
“Peaceful protests by the Iranian people — asking that their voices be heard in the face of the Iranian regime’s repression and ongoing human rights violations — has led the regime to flagrantly disregard human life,” Canadian Foreign Affairs Minister Anita Anand posted on social media Thursday.
“This violence must end. Canada condemns and calls for an immediate end to the Iranian regime’s violence,” she added.
Anand said consular officials are in contact with the victim’s family in Canada. She did not provide details.
The International Federation of Red Cross and Red Crescent Societies announced Thursday that a local staff member was killed and several others were wounded during the deadly protests in Iran over the weekend.
Amir Ali Latifi, an Iranian Red Crescent Society worker, was working in the country’s Gillan province on Jan. 10 when he was killed “in the line of duty,” the organization said in a statement.
“The IFRC is deeply concerned about the consequences of the ongoing unrest on the people of Iran and is closely monitoring the situation in coordination with the Iranian Red Crescent Society,” the statement continued.
U.S. President Donald Trump has hailed as “good news” reports that the death sentence has been lifted for an Iranian shopkeeper arrested in a violent crackdown on protests.
Relatives of 26-year-old Erfan Soltani had said he faced imminent execution.
Trump posed Thursday on his Truth Social site: “FoxNews: ‘Iranian protester will no longer be sentenced to death after President Trump’s warnings. Likewise others.’ This is good news. Hopefully, it will continue!”
Iranian state media denied Soltani had been condemned to death. Iranian judicial authorities said Soltani was being held in a detention facility outside of the capital. Alongside other protesters, he has been accused of “propaganda activities against the regime,” state media said.
Trump sent tensions soaring this week by pledging that “help is on its way” to Iranian protesters and urging them to continue demonstrating against authorities in the Islamic Republic.
On Wednesday Trump signaled a possible de-escalation, saying he had been told that “the killing in Iran is stopping.”
In a joint statement, the foreign ministers of Canada, France, Germany, Italy, Japan, the United Kingdom, the United States and the European Union’s main foreign policy chief said the G7 members were “gravely concerned” by the developments surrounding the protests, and that they “strongly oppose the intensification of the Iranian authorities’ brutal repression of the Iranian people.”
The statement, published on the EU’s website Thursday, said the G7 were “deeply alarmed at the high level of reported deaths and injuries” and condemned “the deliberate use of violence” by Iranian security forces against protesters.
The G7 members “remain prepared to impose additional restrictive measures if Iran continues to crack down on protests and dissent in violation of international human rights obligations,” the statement said.
China’s Foreign Minister Wang Yi has spoken with his counterpart in Iran, who said the situation was “now stable,” China’s Ministry of Foreign Affairs said.
Abbas Araghchi said “he hoped China will play a greater role in regional peace and stability” during the talks, according to the statement from the ministry.
“China opposes imposing its will on other countries, and opposes a return to the ‘law of the jungle’,” Wang said.
“China believes that the Iranian government and people will unite, overcome difficulties, maintain national stability, and safeguard their legitimate rights and interests,” he added. “China hopes all parties will cherish peace, exercise restraint, and resolve differences through dialogue. China is willing to play a constructive role in this regard.”
“We are against military intervention in Iran,” Turkish Foreign Minister Hakan Fidan told journalists in Istanbul on Thursday. “Iran must address its own internal problems… They must address their problems with the region and in global terms through diplomacy so that certain structural problems that cause economic problems can be addressed.”
Ankara and Tehran enjoy warm relations despite often holding divergent interests in the region.
Fidan said the unrest in Iran was rooted in economic conditions caused by sanctions, rather than ideological opposition to the government.
Iranians have been largely absent from an annual pilgrimage to Baghdad, Iraq, to commemorate the death of Imam Musa al-Kadhim, one of the twelve Shiite imams.
Many Iranian pilgrims typically make the journey every year for the annual religious rituals.
Streets across Baghdad were crowded with pilgrims Thursday. Most had arrived on foot from central and southern provinces of Iraq, heading toward the shrine of Imam al-Kadhim in the Kadhimiya district in northern Baghdad,
Adel Zaidan, who owns a hotel near the shrine, said the number of Iranian visitors this year compared to previous years was very small. Other residents agreed.
“This visit is different from previous ones. It lacks the large numbers of Iranian pilgrims, especially in terms of providing food and accommodation,” said Haider Al-Obaidi.
Europe’s largest airline group said Thursday it would halt night flights to and from Tel Aviv and Jordan's capital Amman for five days, citing security concerns as fears grow that unrest in Iran could spiral into wider regional violence.
Lufthansa — which operates Swiss, Austrian Airlines, Brussels Airlines and Eurowings — said flights would run only during daytime hours from Thursday through Monday “due to the current situation in the Middle East.” It said the change would ensure its staff — which includes unionized cabin crews and pilots -- would not be required to stay overnight in the region.
The airline group also said its planes would bypass Iranian and Iraqi airspace, key corridors for air travel between the Middle East and Asia.
Iran closed its airspace to commercial flights for several hours early Thursday without explanation.
A spokesperson for Israel’s Airport Authority, which oversees Tel Aviv’s Ben Gurion Airport, said the airport was operating as usual.
Iranian state media has denied claims that a young man arrested during Iran’s recent protests was condemned to death. The statement from Iran’s judicial authorities on Thursday contradicted what it said were “opposition media abroad” which claimed the young man had been quickly sentenced to death during a violent crackdown on anti-government protests in the country.
State television didn’t immediately give any details beyond his name, Erfan Soltani. Iranian judicial authorities said Soltani was being held in a detention facility outside of the capital. Alongside other protesters, he has been accused of “propaganda activities against the regime,” state media said.
New Zealand’s Foreign Minister Winston Peters said Thursday that his government was “appalled by the escalation of violence and repression” in Iran.
“We condemn the brutal crackdown being carried out by Iran’s security forces, including the killing of protesters,” Peters posted on X.
“Iranians have the right to peaceful protest, freedom of expression, and access to information – and that right is currently being brutally repressed,” he said.
Peters said his government had expressed serious concerns to the Iranian Embassy in Wellington.
Women cross an intersection in downtown Tehran, Iran, Thursday, Jan. 15, 2026. (AP Photo/Vahid Salemi)
A demonstrator lights a cigarette with a burning poster depicting Supreme Leader Ayatollah Ali Khamenei during a rally in support of Iran's anti-government protests, in Holon, Israel, Wednesday, Jan. 14, 2026. (AP Photo/Ohad Zwigenberg)
Protesters participate in a demonstration in support of the nationwide mass protests in Iran against the government, in Berlin, Germany, Wednesday, Jan. 14, 2026. (AP Photo/Ebrahim Noroozi)
Protesters participate in a demonstration in support of the nationwide mass protests in Iran against the government, in Berlin, Germany, Wednesday, Jan. 14, 2026. (AP Photo/Ebrahim Noroozi)
