ASMPT SD8312 Soft Solder Die Bonder

The ASMPT SD8312 soft solder die bonder platform integrates closed-loop solder melting, inert atmosphere control and precision thermocompression adjustment technologies to reduce common yield defects in mass production of power device packaging, such as solder voids, uneven wetting and chip tilting. The machine handles 12-inch wafers and large high-density lead frames for manufacturing TO series, SOT223 and DPAK matrix power devices. Built-in solder deposition and real-time bonding environment control cut down manual process tuning efforts when packaging houses scale up semiconductor production lines for automotive, industrial power and UPS applications.

We provide this used and refurbished ASMPT SD8312 soft solder die bonder. All motion modules, optical inspection units and thermocompression assemblies are fully disassembled, overhauled, calibrated and process-validated before shipment, with actual power device production trials performed. Power semiconductor manufacturers can expand production capacity using this system without heavy capital spending on brand-new equipment.

Core Technologies of the ASMPT SD8312 Soft Solder Die Bonder

1. Controlled Atmosphere Soft Solder Bonding Module

The core differentiator of SD8312 lies in its tightly regulated oxygen-level control chamber. It suppresses solder oxidation during reflow, securing consistent solder wetting and lowering void rates. This closed atmosphere control directly stabilises long-term thermal resistance performance of finished power dies, a critical metric for power semiconductor reliability.

2. Dynamic Thermal & Bond Force Closed-Loop System

Programmable multi-zone heating tunnel couples with real-time bond force feedback. Instead of fixed preset parameters, the system adjusts heating profile and applied force dynamically according to die size, lead frame flatness and solder material properties. It maintains coplanarity across large lead frame arrays, reducing die shift and tilt on warped substrates.

3. High-Throughput 12” Wafer & AB Die Handling

The wafer stage and pick-and-place motion system are optimised for 12-inch wafer input, supporting AB die sorting and selective die pickup. Its universal workpiece holder accommodates large high-density lead frames up to 300 × 100 mm, allowing one platform to run multiple power package formats without heavy fixture rework.

4. Uplook Vision Alignment & Bond Quality Inspection

Integrated uplook optical vision performs die and lead frame fiducial alignment before solder bonding. On-the-fly position correction compensates for frame expansion or warpage under heat, sustaining placement accuracy across continuous production runs and flagging abnormal bonding candidates at early stage.

Target Applications