System-in-Package (SiP) Manufacturing

System-in-Package, or SiP, enables heterogeneous integration by placing multiple chips with different functions (memory, logic, sensors) on a single substrate. SiP supports continued system performance increases without relying solely on transistor-level scaling. Laser processing is widely used in SiP for micro-vias, singulation, thinning, and substrate cutting across ceramics, organics, and glass.

Updated: 3/27/2026

SiP Manufacturing Challenges

SiP production requires micrometer accuracy and material-specific processes. Main challenges:

  • Micro-via formation
    • Diameters from a few microns to ~200 µm.
    • Chemical etching works for silicon and some glass, but not for many ceramics or organic laminates.
    • Etching adds waste, steps, and cost.
  • Material cutting and singulation
    • Requires low collateral damage and tight kerf control as feature sizes shrink.
  • Thin-material handling
    • Non-contact processing reduces mechanical damage and increases yield.
  • Material diversity
    • Ceramics, ABF, FR4, glass, laminates with embedded copper traces respond differently to mechanical saws, etching, and lasers.
Figure 1. Depaneling with ultrashort pulse laser

Laser approaches for SiP

Shorter wavelengths and shorter pulse widths reduce the heat-affected zone, improving precision and yield.

Ultrashort pulse (USP) vs nanosecond (ns) lasers

  • Nanosecond lasers
    • Good for many singulation and drilling tasks at UV and green wavelengths.
    • Higher thermal load can degrade dense layouts.
  • Ultrashort pulse (picosecond and femtosecond) lasers
    • High peak power induces nonlinear absorption and near-instant material removal.
    • Produce negligible HAZ, enabling high-precision drilling and cutting with reduced part failure.
Figure 2. The impact of laser pulse width on machining quality for a long pulse ms laser (left) versus an ultrashort pulse laser (right).

Picosecond Lasers

Typical uses by wavelength:

  • UV: micro-vias in ceramic, organic, glass interposers.
  • UV and green: ceramic interposer cutting, depaneling, silicon scribing/dicing.
  • IR: glass cutting.

IceFyre® Picosecond Lasers: Spectra-Physics IceFyre picosecond lasers set a new standard for picosecond micromachining and can provide the ultimate solutions for SiP manufacturing. The UV version enables premium quality drilling of micro-vias through ceramic, organic and glass interposers. Both the UV and green versions are great for cutting ceramic interposers, depaneling and scribing and dicing silicon dies. Additionally, the IR version can be used to cut glass interposers.

  IceFyre®  
Wavelengths UV Green IR IceFyre_1064-50
Power Up to >50 W
Pulse Width <12 ps <15 ps
Repetition Rates Single Shot to 10 MHz
Max Pulse Energy Up to >40 µJ Up to >60 µJ Up to >200 µJ

Nanosecond Lasers

Use cases: high-throughput micro-via drilling, interposer cutting, depaneling, scribing/dicing.

  • Talon® Ace™ Lasers: Delivering an industry-leading >100 Watts of UV power, Talon Ace offers the lowest cost-per-Watt and cost of ownership for high power nanosecond UV lasers. This laser can be employed for a whole host of applications including drilling micro-vias through ceramic, organic laminate and glass interposers, cutting ceramic and organic laminate interposers, depaneling, and scribing and dicing dies. Talon Ace also includes our proprietary TimeShift programmable burst-mode technology for the most versatile pulse control, leading to increased process speed and quality.
  • Talon® Nanosecond Lasers: For the best combination of performance, reliability and cost in SiP laser manufacturing, Spectra-Physics Talon lasers deliver excellent results. Talon works exceptionally well for cutting ceramic and organic laminate interposers, depaneling and scribing and dicing silicon dies. The UV version in particular is also able to drill micro-vias through ceramic and organic interposers. The Talon provides high quality results, but its cuts and drills may not be as pristine as the IceFyre’s. Talon’s advantage over IceFyre, though, is that it can cut and drill faster.
  • Quasar® High-Power Nanosecond Lasers: Other lasers highly suited for SiP manufacturing are the Spectra-Physics Quasar® and Talon® Ace nanosecond series of lasers. The Talon Ace UV100 is the highest-powered single mode UV laser in the industry, so it delivers fast micromachining and provides 24/7 industrial reliability. Like the IceFyre and Talon, the UV and green versions of the Quasar and Talon Ace can also be used for depaneling, scribing and dicing dies. And like the UV version of the IceFyre, the Quasar UV and Talon Ace UV can also drill micro-vias through ceramic, organic and glass interposers.
  Talon Ace Laser
Talon Ace
Talon
Talon
Quasar_UV
Quasar
Wavelengths UV UV or Green UV or Green
Power

>100 W

UV: Up to >45 W
Green: Up to >40 W
UV: Up to >80 W
Green: Up to >95 W
Pulse Width

<2 to >50 ns

UV: <25 or 40 ns
Green: <25 ns
<2 to >100 ns
Repetition Rates

Single shot to 5 MHz

0 to 500 kHz 0 to 3.5 MHz
Max Pulse Energy

Up to >500 µJ

UV: Up to >500 µJ
Green: Up to 1000 µJ
UV: Up to >400 µJ
Green: Up to >475 µJ

System-in-Package Laser Selection Guide

Presented here is a summary of recommended MKS lasers for various SiP manufacturing applications. Please use this as a reference guide only, and always contact us to discuss your application and requirements in detail so that we may provide the best solution for you.

  Talon® Ace™ IceFyre® Talon® Quasar®
  UV UV Green IR UV Green UV Green

Drilling Ceramic Micro-vias

       
Drilling Organic Laminate Micro-vias        
Drilling Glass Micro-vias          
Cutting Ceramic Interposer    
Cutting Organic Laminate Interposer        
Cutting Glass Interposer              

Cutting SiP Package Substrate (Depaneling)

   

Scribing/Dicing* Silicon Die

 

* Dicing thin wafers < 100 µm

Laser Beam Beam Measurement and Monitoring

Lasers and optics degrade from thermal effects, contamination, and vibration. Regular monitoring prevents process drift and downtime.

Laser Power Sensors

MKS offers a comprehensive portfolio of Ophir® laser thermal power sensors for pulsed and ultrashort lasers with high damage thresholds and ISO/IEC 17025 calibration. 

  F150(200)A-CM-16 30(150)A-SV-17 F80(120)A-CM-17  
Spectral Range 0.248-9.4 µm 0.19-11 µm 0.248-9.4 µm laser-power-energy-meters
Power Range 300 mW - 200 W 100 mW - 150 W 100 mW - 120 W
Energy Range 50 mJ – 200 J 50 mJ – 300 J 50 mJ – 200 J
Max Avg Power Density 35 kW/cm2 60 kW/cm2 35 kW/cm2
Max Energy Density (2 msec) 45 J/cm2 50 J/cm2 45 J/cm2
Aperture Ø16 mm Ø17 mm Ø17.5 mm
Response Time 3 sec 1.7 sec 2 sec

Virtual Power Meters and Software

  • USB or Ethernet connectivity for sensor networks, remote control, data logging, and analysis.
  • Example tools support multiple sensors on a single PC and remote monitoring.
  • User-friendly software with extensive graphic displays, advanced measurement processing and data logging.

Beam Profilers

Ophir beam profiling cameras allow real-time viewing and measuring of a laser’s structure in high resolution while also measuring cross-sectional intensity providing a complete 2-dimensional view of the laser mode.

Industrial Grade Positioners

Micron-level positioning at high speed is essential for SiP throughput and accuracy.

 
IDL-LM Series
Travel Range 100 to 1200 mm IDL-LM Series motorized stage stack
Speed 2000 mm/s
Load Capacity 450 to 2,000 N
Accuracy ±2 to ±5 µm
Repeatability ±0.25 to ±0.5 µm
Pitch ±15 to ±65 µrad
Yaw ±15 to ±40 µrad

Motion Controllers

Multi-axis controllers synchronize galvos and stages, provide extensive I/O, and support complex trajectories for industrial production.

XPS-D
XPS-D
XPS-RLD
XPS-RLD
  • High performance, complex motion trajectories
  • Up to 8 axes
  • Extensive analog and digital I/O
  • Can synchronize galvos and positioners
  • Best for the most demanding applications
  • High performance, complex motion trajectories
  • Up to 4 axes
  • Analog and digital I/O
  • Can synchronize galvos and positioners
  • Good for demanding R&D and low volume production

High-Energy Laser Optics

For the SiP manufacturing lasers required, wavelength-optimized optics (355, 532, 1064 nm) with high LIDT for high-fluence are required.

CO2 Laser Lenses

For SiP operations that utilize CO2 lasers, Ophir low absorption Zinc Selenide (ZnSe) lenses have transmission above 99% for kW-class lasers, extending lifetime in high-power CO2 setups.

  CO2 Laser Lenses
Coating Duralens™ Black Magic™ Clear Magic™
Wavelength 10.6 µm
Transmission >99.3% >99.35% >99.37%
Absorption <0.2% <0.15% <0.13%
Reflection <0.2% <0.25% <0.25%
Diameters 1.1 to 2.5 in. 1.1 to 2.5 in. 1.1 to 2.0 in.
Shapes Plano-Convex
Meniscus

Opto-Mechanical Components

Stable mounts, mirror holders, lens positioners, and post assemblies reduce drift and maintain beam quality in production environments. Typical materials include stainless steel and aluminum. Components should be designed for vibration resistance and thermal stability.

Sip Manufacturing Quick Reference Table

Issue Preferred Laser Positioning Measurement
Micro-vias in ceramic UV picosecond or UV ns Micron stages, synchronized galvo High-damage-threshold power sensor, beam profiler
Thin silicon dicing UV/green picosecond High-repeatability linear positioner In-line power monitoring
Glass interposer cutting IR picosecond Low-vibration stages Camera-based profiler or slit profiler