From Glass Substrates to AI Inspection
Explore advanced packaging, high-speed PCBs, smart automation, and inspection technologies shaping AI hardware manufacturing.
Competition in AI hardware is bringing more engineering challenges into packaging and PCB manufacturing. Denser chip interconnects and lower transmission losses require coordinated progress in material adhesion, precision processing, and defect inspection.
TPCA Show 2026, scheduled for October 20–22 at Taipei Nangang Exhibition Center, Hall 1, will focus on AI, PCBs, and advanced packaging, including a dedicated advanced packaging area.
Source: TPCA Official Exhibition Announcement
Based on published exhibition and technical information, four developments deserve attention from R&D, hardware, and project teams:
Interest in glass-core substrates relates to dimensional stability, flatness, and interconnect density in large packages. Through-glass vias (TGVs) provide vertical electrical connections through the glass.
The technology requires attention beyond the glass itself, including coordination between via formation, metallization, and inspection. Nidec has announced a high-accuracy TGV inspection solution for this year’s exhibition, illustrating inspection’s role in technology adoption.
Source: Nidec TPCA Show 2026 Exhibition Preview
Glass-core package substrates and conventional FR-4 system PCBs occupy different interconnect levels. Engineers should track how package changes affect board-level interfaces. Glass material alone does not establish that an entire package’s thermal challenges have been resolved.
Panel-level packaging (PLP) focuses on the productivity and cost opportunities of larger processing carriers. The concurrent IMPACT-IAAC program includes cost and performance tradeoffs across panel sizes for AI and high-performance computing. Cost benefits still require evaluation against package size, processing requirements, and yield.
Source: IMPACT-IAAC 2026 Panel-Level Packaging Session
Redistribution layers (RDLs) and hybrid bonding are also advancing denser chip-to-chip connections.
As one example, imec’s exploratory RDL process design kit provides design conditions down to 1.3 µm line width and spacing, alongside a separate die-to-wafer hybrid bonding kit. These figures belong to a specific research platform and do not establish production capability across this year’s exhibitors.
Source: imec RDL and Hybrid Bonding Design Kits
What this means for development teams: Understand packaging design rules, technology maturity, and validation requirements earlier, and assess their implications for board-level connections, power delivery, and thermal interfaces.
High-speed PCB material selection also involves reliable bonding between copper and dielectric materials.
Atotech’s BondFilm combines copper surface roughening and an organometallic layer to provide mechanical and chemical bonding. NovaBond PX-S2 uses nanoscale surface structures to pursue adhesion with low roughness. The products should be distinguished by their specific mechanisms and application conditions.
Sources: Atotech BondFilm, Atotech NovaBond PX-S2
Specifying low-loss laminates and copper foils should be accompanied by confirmation of the fabricator’s surface treatment and material compatibility. Electrical requirements and lamination reliability need joint evaluation.
Microvia processing requires suitable equipment and material conditions. ESI identifies its Geode G2 as a CO₂ laser drilling system for HDI microvias, emphasizing calibration, energy monitoring, and processing accuracy.
Source: ESI Geode G2 Official Product Information
When evaluating equipment and processing options, useful questions include:
What this means for development teams: Equipment specifications must translate into actual process capability before they can support via design and tolerance decisions.
Products listed on the TPCA exhibition website include automatic PCB loading and unloading, AGV-integrated equipment, and vision-registration systems, showing automation’s continuing expansion into manufacturing.
Source: TPCA Show Official Website
When evaluating autonomous mobile robots (AMRs), robotic arms, and automated handling, we recommend examining two factors:
Stable handling and correct identification of materials and process status.
For example, suppliers of automated layup solutions can be asked how they verify core revisions, prepreg types, stacking sequences, and lot numbers. They should also explain how abnormalities trigger stops, material isolation, and recorded evidence.
| Evaluation area | Questions to confirm | |---|---| | Material identification | Can the system verify part numbers, revisions, and lots? | | Layup error prevention | How are material types and stacking sequences checked? | | Exception handling | How does the system stop and isolate nonconforming material? | | Production traceability | Are material, equipment, and operation records retained? |
These are adoption review questions; actual functionality requires individual confirmation.
What this means for project and quality teams: Automation’s value should extend from handling efficiency to error prevention and traceability that supports subsequent quality analysis.
Nidec’s exhibition announcement includes a high-speed CT-type X-ray machine for back-drilling, together with 2D/3D optical inspection for high-density substrates and AI visual inspection equipment.
Source: Nidec TPCA Show 2026 Exhibition Preview
The practical question is whether a solution can detect the defects relevant to the product. Suppliers should demonstrate representative samples and explain:
“High-speed” requires supporting test conditions. It does not establish that every sample can undergo complete defect inspection within seconds.
Systems such as the HIROX HRX-02 support surface observation and dimensional measurement. Hot Disk instruments focus on material properties such as thermal conductivity and thermal diffusivity. These tools answer different questions about geometry and thermal performance.
Sources: HIROX HRX-02 Product Information, TPCA Hot Disk Product Listing
For high-power products, material property measurements can support selection. System cooling performance still requires validation against the actual structure and operating conditions.
What this means for development teams: Define the defect or performance requirement before selecting the measurement method, so results can directly support design and quality decisions.
| Technology highlight | Information to request | Project use | |---|---|---| | Glass substrates and advanced packaging | Design rules, test vehicles, and technology maturity | Assess changes to packaging and board-level interfaces | | High-speed PCB materials and processing | Material combinations, surface treatments, and manufacturable tolerances | Establish material selection and DFM inputs | | Smart automation | Error-prevention logic, traceability records, and exception handling | Assess production management and quality traceability | | Inspection and thermal analysis | Sample conditions, acceptance criteria, and measurement limitations | Define validation methods and acceptance requirements |
These four TPCA Show 2026 highlights point toward closer coordination between packaging, materials, processing, and inspection. Development teams can turn that information into project conditions that can be confirmed and validated.
If your project is evaluating high-speed PCBs, HDI, or material alternatives, share your Gerber files, stackup, and electrical requirements with eCloud to discuss the checks needed before fabrication and establish clear manufacturing requirements.
