Nisene Jetetch Pro & JetEtch TotalPROTECT Automated Plastic Package Decapsulation Systems

Overview

The Nisene Jetetch Pro and JetEtch TotalPROTECT are fully automated electrochemical decapsulation systems engineered for precise, repeatable removal of molded plastic encapsulants from semiconductor devices—without mechanical stress, thermal damage, or metallization corrosion. Unlike manual grinding or plasma ashing, these systems employ controlled, pressurized acid etching under inert nitrogen or argon atmosphere to selectively dissolve epoxy-based molding compounds (e.g., EMC-700, EMC-800) while preserving die surfaces, bond wires (Al, Cu, Au), lead frames, and solder balls. The core principle leverages electrochemically modulated acid delivery—where programmable flow rate (1–6 mL/sec), temperature-controlled reagent mixing (HNO₃, H₂SO₄, fuming variants, or 13 pre-calibrated blends), and dynamic etchant routing (vortex or pulsed mode) ensure stoichiometric control over the de-encapsulation reaction. This enables sub-micron surface integrity across IC packages ranging from legacy DIPs to advanced QFNs, PBGAs, and die-down configurations—critical for root-cause analysis in reliability testing, counterfeit detection, and design verification per JEDEC JESD22-A108 and A114 standards.

Key Features

• Patented electrochemical etch head with integrated precision peristaltic pumps and inert-gas purged chamber—eliminates oxidation of Cu/Al bond wires and minimizes NOₓ/SOₓ off-gassing
• Real-time temperature regulation (±0.5°C) with rapid ramp-up/down (<90 sec) between nitric and sulfuric acid protocols
• 100-user-programmable decapsulation recipes, each storing acid type, concentration, flow rate, dwell time, cooling setpoint, and purge cycle parameters
• High-brightness 6-line alphanumeric display—optimized for visibility inside fume hoods with ambient lighting ≥500 lux
• Modular tooling support: standard kits include DIP/SIP, PLCC, SOIC, QFP, PBGA, QFN/MLP, and die-down BGA fixtures; custom fixtures available for non-standard package geometries
• JetEtch TotalPROTECT adds bias-voltage control (0–5 V DC) and active coolant circulation—enabling safe decapsulation of temperature-sensitive MEMS, RF modules, and stacked-die assemblies
• Fail-safe interlocks: lid sensor, acid level monitoring, pressure relief valve, and emergency stop compliant with IEC 61010-1

Sample Compatibility & Compliance

The system accommodates all common plastic-encapsulated microcircuits (PEMs) per MIL-STD-883 Method 2022 and JEDEC J-STD-020. Verified compatibility includes wire-bonded and flip-chip packages with Al, Cu, or Au interconnects; lead-free (SnAgCu) and SnPb terminations; and high-Tg mold compounds. No sample pre-treatment is required—devices mount directly into standardized fixtures. All acid handling conforms to OSHA 29 CFR 1910.1200 (HazCom) and EPA 40 CFR Part 262 for hazardous waste storage. Optional audit-ready software logs operator ID, timestamp, recipe ID, acid lot numbers, and chamber pressure/temperature history—meeting FDA 21 CFR Part 11 requirements for electronic records in regulated environments.

Software & Data Management

The embedded firmware supports USB export of full session logs (CSV format) including etch start/end times, acid consumption volume, thermal profiles, and fault codes. Optional PC-based Nisene Control Suite (v4.2+) provides remote monitoring, recipe versioning, and integration with LIMS via HL7 or ASTM E1384 interfaces. All software modules undergo annual validation per ISO/IEC 17025 Clause 5.9.2 and include built-in calibration verification routines traceable to NIST SRM 1921b (certified reference acids).

Applications

• Fault isolation in electrical overstress (EOS) and electrostatic discharge (ESD) failure analysis
• Verification of die attach voiding, wire sweep, or mold compound delamination
• Counterfeit detection via die marking authenticity, metallization layer inspection, and process signature analysis
• Reliability qualification per AEC-Q200 and automotive PPAP submissions
• Process development for advanced packaging technologies (fan-out WLP, 2.5D/3D IC)

FAQ

What acid types are supported?

Nitric acid (concentrated and fuming), sulfuric acid (cold and fuming), and 13 factory-validated binary mixtures—including HNO₃/H₂SO₄ ratios optimized for low-residue removal of high-fill epoxy compounds.

Can the system handle copper wire-bonded devices?

Yes—JetEtch TotalPROTECT’s bias voltage control and chilled acid delivery suppress Cu oxidation and prevent intermetallic formation during extended etch cycles.

Is operator training required?

Minimal: system operation requires <2 hours of hands-on instruction; safety certification and routine maintenance are covered in the included ISO 9001-aligned training module.

How is waste acid managed?

Spent reagents drain into standardized HDPE acid bottles (1L or 2L); neutralization and disposal follow local RCRA Subpart D guidelines—no on-board neutralization hardware is included.

Does the system comply with cleanroom requirements?

The enclosure meets ISO Class 5 particulate limits when operated inside a laminar flow hood; no internal HEPA filtration is provided as standard.