Probing & Testing
Wafer Probers & ATE Testers
Pin electronics cards, test head boards, stage servo drivers, alignment cameras, and thermal chuck controllers.
TEL · Accretech (TSK) · Advantest · Teradyne
GK-SEMI / Global Semiconductor Repair Center
Save Up to 70% vs. OEM Replacement — Backed by 30+ Engineers & 2-Shift Rapid Repair
When a critical semiconductor machine goes down, waiting months for an expensive OEM replacement is not an option. Our in-house repair center restores complex boards, spindles, drivers, RF units, and robots with 100% on-machine load verification.
30+ Full-Time Senior Engineers
2-Shift Non-Stop Rush Repair
20+ Original Test Platforms
No Fix, No Fee · 180-Day Warranty
What We Can Repair
Send Part Number for Quote ↗
Full-Spectrum Semiconductor Equipment & Module Repair
We provide chip-level board repair, mechanical spindle/robot overhaul, and module calibration across major wafer fab, probing, dicing, packaging, and ATE test machines.
Probing & Testing
Dicing & Grinding
Dicing Saws & Wafer Grinders
High-speed air/ball bearing spindles, DC/AC servo drives, NCS height sensors, and high-frequency spindle inverters.
DISCO · Accretech · ADT · K&S
Die & Wire Bonding
Die Bonders & Wire Bonders
Ultrasonic transducers (USG), XY bond head linear motors, pattern recognition vision boards, and EFO controllers.
ASMPT · BESI · Kulicke & Soffa (K&S) · ESEC
Wafer Fab Modules
Wafer Robots, RF & Vacuum
Wafer transfer robots, pre-aligners, RF generators & matchboxes, turbo/dry vacuum pumps, and MFC flow controllers.
Brooks · AMAT · Lam · Advanced Energy · MKS
Detailed Repair Directory by Component Type
Machine Down with an Unclear Alarm Code?
Don't waste days guessing which board or drive is causing the trip. Send your alarm screen and machine model to our 2-shift engineering desk for free remote fault isolation.
- 15-minute fast response from senior equipment specialists.
- Free pre-shipment evaluation via alarm logs, photos, and videos.
- If your part is burned beyond repair, we can supply a tested replacement from stock.
- Browse our Semiconductor Troubleshooting & Repair Library.
Why Global Fabs & OSATs Trust Us
Hard Proof of Our Semiconductor Repair Capability
Semiconductor assemblies demand extreme precision. We prove our capability through full-time engineering scale, 2-shift speed, real-machine testing platforms, and massive chip inventory.
01 / Team Qualification & Speed
30+ Full-Time Senior Engineers & 2-Shift Non-Stop Repair
Every hour of wafer fab or OSAT line downtime costs thousands of dollars. Unlike small workshops or middleman brokers who outsource repairs, GK-SEMI operates an in-house team of over 30 full-time engineers—many with 10+ years of experience at original equipment manufacturers.
- ✓Dedicated divisions for RF/Power, Precision Motion/Spindles, Robotics, and ATE Boards.
- ✓Two-shift (2-Shift) rotation system keeps repair benches running 16+ hours a day for urgent down-tool orders.
- ✓Reverse-engineering and schematic tracing for obsolete (EOL) boards without OEM drawings.
Certified Engineering Team
Engineering Manpower & Shift Snapshot
30+ Specialists
Full-time in-house chip-level & mechanical engineers.
2-Shift System
Day & night bench relay for 24–48h rush turnaround.
Zero outsourcing. Your critical assemblies stay inside our controlled facility from intake to final load test.
02 / True On-Machine Verification
20+ Complete Equipment Test Platforms — Never Just "Multimeter Pass"
A repaired board or servo drive that simply powers on can still fail immediately under closed-loop feedback on your production floor. To guarantee stability, we have invested heavily in complete semiconductor machines, original controller racks, and closed-loop test fixtures.
- ✓100% Closed-Loop Load Testing: Servo drives run with matched motors/encoders; RF units run under full dummy-load wattage.
- ✓8-Hour Continuous Burn-In: Every repaired assembly undergoes thermal and cyclic endurance testing to eliminate intermittent faults.
- ✓Video Proof Before Dispatch: We record live on-machine test videos and diagnostic pass screens for your approval before shipping back.
On-Machine Load Verification
Testing Rigor & Quality Snapshot
20+ Test Rigs
Dedicated Prober, Dicer, Bonder & RF test beds.
98.5% Pass Rate
Plug-and-play installation back on your production tool.
Every shipment includes test waveform records, calibration offsets, and live verification video.
03 / Cost & Lead-Time Advantage
10,000+ Rare ICs in Stock — Save 50% to 70% vs. OEM Replacement
Most repair delays happen because repair shops have to wait weeks to buy discontinued chips, specialized relays, or ceramic bearings. Backed by our massive semiconductor parts warehouse, our engineers pull original-grade components directly from our own shelves.
- ✓Immediate access to rare DAC/ADC chips, high-speed pin drivers, IGBTs, air-bearing parts, and harmonic drives.
- ✓Restores 95%+ of new OEM performance at 30%–50% of the replacement cost.
- ✓Advance Core Exchange & Direct Replacement: If your board is burned in half, we can immediately dispatch a refurbished unit from stock.
In-House Component Warehouse
Cost & Supply Chain Snapshot
Up to 70% Saved
Dramatically lower maintenance OPEX vs. OEM new units.
10,000+ SKUs
Rare chips, sensors & assemblies ready for instant use.
Dual protection: Component-level repair + instant spare parts backup under one roof.
04 / Facility Qualification & Warranty
ISO-Standard ESD & Cleanroom Facility Serving 400+ Global Clients
Handling precision wafer robots, optical modules, vacuum valves, and high-density ATE boards requires strict environmental control. Our repair center operates under full electrostatic discharge (EPA) protection and cleanroom assembly protocols.
- ✓Full ESD-safe workbenches, ultrasonic cleaning stations, and helium mass spectrometer leak detectors.
- ✓No Fix, No Fee Policy: Free bench evaluation—if we cannot repair it to specification, you pay zero repair labor.
- ✓90 to 180-Day Warranty: Comprehensive warranty with anti-static / vacuum-sealed packaging for safe global transit.
ESD & Cleanroom Compliant
Global Compliance & Trust Snapshot
400+ Clients
Serving global wafer fabs, OSATs, and electronics leaders.
30+ Countries
Experienced in ATA Carnet & repair customs clearance.
Strict NDA protection available for all customer equipment logs, parameters, and proprietary assemblies.
Fast & Transparent Workflow
From Faulty Unit to Verified Return in 4 Simple Steps
Zero hidden fees, fast 24-hour bench diagnosis, and live test video confirmation before you pay for the return shipment.
STEP 01
15-Min Pre-Ship Triage
Send us the part number, label photo, and alarm symptom. Our engineers confirm test-bench readiness and provide shipping/customs instructions immediately.
STEP 02
24H Free Diagnosis & Quote
Upon receipt, our 2-shift team inspects the unit, pinpoints the exact root cause, and issues a fixed-price repair quote and turnaround commitment.
STEP 03
Chip-Level Repair & Burn-In
We replace failed components with original-spec parts, calibrate mechanical/optical offsets, and run 8-hour closed-loop burn-in on our test platform.
STEP 04
Video Proof & Fast Dispatch
We send you the live test video and diagnostic pass report. Once confirmed, the unit is ESD/vacuum-packed and shipped via DHL/FedEx express.
01
No Fix, No Fee Guarantee
If a unit is damaged beyond repair, we charge zero evaluation or labor fees—and can quote a ready-to-ship replacement unit from our stock.
02
100% Test Video Confirmation
You see your actual unit running and passing diagnostics on our test rig via video before it leaves our repair center.
03
90–180 Days Full Warranty
Every repair is backed by up to 6 months of warranty plus direct remote technical support from our engineers during re-installation.
Trusted by Leading Semiconductor Packaging, Test & Wafer Manufacturers
Our repair quality and ESD/cleanroom standards meet the strict procurement requirements of publicly listed OSAT and electronics manufacturers worldwide.
AMKOR TECH
ASE GROUP
INFINEON
BOSCH
NXP SEMI
FOXCONN
JABIL
CONTINENTAL
SAMSUNG
VALEO
FLEX
INTEL SUPPLY
Direct Engineering Desk
Get a Fast Repair Quote & Feasibility Check
Submit your part number and machine fault below. Our on-duty repair specialist will respond within 15–30 minutes on WhatsApp to confirm test platform availability, estimated cost savings, and lead time.
- Send Nameplate & Alarm Photos: Quickly verify exact hardware revision and test rig compatibility.
- Rush Line-Down Priority: Tell us if your machine is stopped so we can reserve an immediate 2-shift bench slot.
- Repair + Replacement Quote: Ask for both repair pricing and our in-stock refurbished unit price to compare your best option.
Buyer & Engineer FAQ
Questions About Speed, Testing & Warranty
Everything you need to know before sending your high-value semiconductor assemblies to our repair center.
How fast is your turnaround time for an urgent "machine-down" repair?
Because our repair center runs a 2-shift continuous operation with 30+ full-time engineers and over 10,000 spare components in stock, emergency line-down repairs are prioritized immediately upon arrival and typically completed within 24 to 48 hours. Standard repairs take 5 to 7 business days.
How do you prove the repaired part will actually work on my machine?
We never ship a part based on a simple multimeter or power-on check. We maintain 20+ sets of original test platforms and closed-loop load fixtures. Before return shipment, we run your part under simulated production load for 8+ hours and send you a live verification video and test report.
What if my part is severely burned and cannot be repaired?
We operate under a strict No Fix, No Fee policy—there is zero inspection charge if a unit is unrepairable. Better yet, because we are also a major supplier of semiconductor equipment parts, we can immediately offer you an in-stock refurbished or original replacement unit so your line doesn't wait.
How much can we save compared with buying a new assembly from the OEM?
On average, our component-level repair and overhaul service saves clients 50% to 70% compared to OEM list prices, while restoring 95%+ of original performance and extending the lifecycle of legacy 150mm, 200mm, and 300mm equipment.
What warranty do you provide after the repair?
All repaired assemblies carry a 90 to 180-day functional warranty. If any issue occurs within the warranty period, our two-shift engineering team provides immediate remote troubleshooting and free warranty service.
How do we ship high-value parts internationally without customs trouble?
We serve over 400 manufacturers across 30+ countries. Before you ship, our logistics team will provide complete temporary import/export repair documentation guidance and commercial invoice templates to ensure fast, smooth customs clearance.
Cut Your Equipment Maintenance Costs by Up to 70% Today
30+ Senior Engineers · 2-Shift Rapid Turnaround · 100% On-Machine Load Tested. Send your part number and fault details now for a free evaluation.
30+ Engineers · 2-Shift Rush
Semiconductor Repair Get Instant Quote ↗
Semiconductor Repair Get Instant Quote ↗