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Semiconductor Precision Dispensing Solutions

Source: FHATC 2026-08-23 Author: Fuheng
Semiconductor

Semiconductor Chip Packaging Precision Dispensing Solutions

Nano-level ultra-precision dispensing | Bubble-free process | Driving semiconductor manufacturing toward high-end
±1μm
Dispensing position accuracy
99.8%
Yield rate
<0.01%
Bubble rate

Core Challenges

Advanced packaging precision limits
With process nodes advancing to 3nm and below, ultra-fine pitch, irregular structures and multi-layer stacked packaging frequently suffer from uneven adhesive volume, overflow and bubbles. Advanced packaging (2.5D/3D, Chiplet, fan-out) demands nanometer-level dispensing accuracy that conventional processes cannot achieve.
Damage-free processing of sensitive components
MEMS sensors and optoelectronic devices are highly sensitive to mechanical stress and temperature fluctuation. Wafer-level packaging requires high-precision consistency across tens of thousands of dispensing points on a 300mm wafer.
Multi-package-format adaptability
BGA/QFN/CSP underfill, die attach and edge protection demand precise control of adhesive flow to prevent overflow. TSV filling, RDL protection coating and fan-out packaging call for CV value below 1% for adhesive volume control.
Hermeticity and long-term reliability
WLCSP wafer-level packaging, MEMS cavity sealing and LED/laser die bonding call for hermeticity and long-term stability across a working temperature range of -40°C to +150°C, meeting automotive-grade and medical-grade quality control requirements.

Core Technology Solutions

Nano-level motion control
Linear motors with air bearings achieve XYZ three-axis repeat positioning accuracy of ±0.5μm and response within 5ms. Piezoelectric jet valves with closed-loop flow control deliver adjustable adhesive volume from 0.1nl to 100nl with CV value below 1%.
Bubble-free process assurance
Bubble rate below 0.01% through proprietary bubble-suppression technology and stress-free dispensing path planning. Non-contact jetting avoids mechanical contact, and the temperature control system keeps dispensing-area temperature fluctuation within ±0.3°C to fully protect sensitive components.
Intelligent quality control
High-resolution CCD with deep-learning algorithms achieves alignment accuracy of ±2μm. In-line inspection of dot shape, size and position automatically rejects defective products, raising yield from 96.5% to 99.8% with UPH of 1200-1500 wafers and a 40% throughput increase.

Application Scenarios

Die Attach
Used for CPU, GPU and memory chip bonding and fixation with precise adhesive-volume and position control, supporting damage-free dispensing on ultra-thin bare dies below 50μm.
Underfill
Precisely controls underfill adhesive flow and direction for BGA and Flip Chip packages, ensuring complete void-free filling, dispersing thermal stress and improving reliability in temperature cycling tests.
Advanced Packaging (Chiplet/3D IC)
Supports 2.5D/3D stacking and Chiplet heterogeneous integration with nanometer-level dispensing accuracy in ultra-fine pitch and complex structures.
MEMS Device Sealing
Provides cavity sealing for MEMS microphones, pressure sensors and inertial sensors with MIL-grade hermeticity for long-term stability in harsh environments.
Wafer-Level Packaging (WLCSP)
Performs batch dispensing of tens of thousands of points on 300mm wafers with ±2μm point consistency and automated vision alignment, boosting throughput by over 40%.

Customer Benefits

±1μm dispensing accuracy
Nano-level motion control ensures ultra-high positioning precision for the most demanding advanced packaging processes, solving dispensing defects in fine-pitch and multi-layer stacking.
Yield rate raised to 99.8%
Intelligent vision inspection and closed-loop control lift yield from 96.5% to 99.8%, reducing rework and scrap to save millions in annual loss costs.
40% throughput increase
UPH of 1200-1500 wafers with automated loading systems increases output by 40% on the same floor area, meeting rapidly growing semiconductor demand.
Zero damage to sensitive components
Non-contact jetting eliminates mechanical stress, cutting damage rates of MEMS and optoelectronic devices to near zero and protecting high-value chips.
Application Video
The world's leading and only hovering solder paste dispensing solution: an ultra-high precision system with real-time dynamic collaborative adjustment of dispensing shape and real-time closed-loop inspection

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