CHPT
Chunghwa Precision Test Technology Co., Ltd.
With extensive experience in PCB layout design — including transmission lines, differential pairs, delay lines, RF, and mixed-signal circuits — the company also possesses advanced PCB manufacturing capabilities such as thick boards, fine traces, and high aspect ratio processes. In addition, it offers a total solution service encompassing component assembly (including relays, sockets, and stiffeners) and after-sales maintenance.
Main Products / Services
Printed circuit boards (Probe PCBs) for wafer testing probe cards
Probe heads
Interposer substrates for vertical probe cards
Load boards for IC testing
DUT boards for memory testing
Implementation Benefits
Challenges and Countermeasures for Material Shortages and Rush Orders
Challenge
Urgent rush orders require time-consuming rescheduling by production control.
Material errors or shortages complicate the procurement process.
Production control and procurement staff face heavy workloads and frequent overtime.
Solution
Basic standardization of working hours, processes, and material usage.
Systematic implementation of standardized material planning.
Challenges and Countermeasures in In-Plant Scheduling and Production Reporting
Challenge
• Manual scheduling is inaccurate, time-consuming, and labor-intensive.
• Production parameters are not integrated with standard parameters.
• Scheduling is based on infinite capacity, making it impossible to provide real-time delivery feedback.
• Production information is disconnected from the scheduling system.
Solution
Execute production scheduling and planning systematically based on capacity and material availability.
Automatically download production parameters to equipment.
Schedule production according to finite capacity to define realistic delivery dates.
Feed production reports back into the scheduling system to update plans in real time based on shop-floor conditions.
Challenges and Countermeasures in In-Plant Scheduling and Production Reporting
Challenge
•Unable to track individual wafer history.
•Time-consuming process for generating shipment reports.
Solution
Management granularity refined down to the panel ID level.
Automatic panel status transfer enabled through RFID.
Standardized definition and generation of panel traceability records.
| Core Competencies | Management Enhancement | Solutions |
|---|---|---|
|
Systematic process management. |
• Production process control and exception management. • Printing of shipment inspection reports. • Management of line-side warehouse and temporary storage areas. • Management of processing equipment, stack-up diagrams, parameters, and process changes. |
• Integration of enterprise operations and production management. • Batch work-in-progress (WIP) tracking and management. • Automatic determination and printing of shipment inspection report results. • Management of product data, workstation parameters, process stack-ups, and engineering documents. • Automatic printing of 2D labels after molding. |
|
Increase production output and ensure on-time delivery |
• Automated posting via RFID • Integration of production scheduling plans with early overtime warnings • Automated assignment of equipment parameters • Equipment data acquisition • Enhanced cycle time control |
• Automatic posting of batches and panel IDs via RFID. • Automated download of equipment parameters. • Production progress tracking and control. • Visualized factory management and dashboards. • Management indicator statistics. • Management of multi-layer lamination materials, pre-lamination replenishment, and unit conversions. |
|
Quality Assurance |
• Control Plan management and prevention of batch mix-ups • Monitoring of yield rates at each workstation and final yield performance • Automatic collection of production history, inspection records, and measurement data |
• Equipment maintenance, inspection, and servicing management. • Yield traceability before and after lamination and molding processes. • Event recording and working hours management. |
Solution Implementation Benefits
Through the APS intelligent scheduling management system
– AS-IS: Day and night shift planners each create schedules separately, taking about 2 hours per session.
– TO-BE: Scheduling is updated based on real-time shop-floor changes, reducing scheduling time to about 5 minutes under normal conditions.
• Transparent delivery scheduling
– Plans each process stage using a finite capacity approach to estimate start and completion dates, feeding data back to ERP and MES systems for cross-verification between planning and execution.
• Enhanced scheduling agility
– Enables real-time rescheduling upon changes, allowing planners to clearly track urgent order status and in-plant production progress, and reissue updated schedules when necessary.
Through the MES intelligent shop-floor execution system
– Batch posting by production lot: applied before lamination and after molding to effectively control production records for each batch.
– Single-panel posting by panel ID: applied after lamination and before molding to accurately track the production history of each individual panel.
• Process Parameter Management
– Comprehensively establish complete product information, including basic specifications, panel cutting, pre-production stack-up, material stack-up, drilling, impedance, routing, and workstation parameters.
– Provide automated parameter downloads through RFID to retrieve machining parameters for each machine, preventing manual setup errors.
• Production Control
– Manage the entire process for multi-layer lamination, offering complete solutions for pre-lamination material replenishment, workstation adjustments, and unit conversions.
– Enhanced cycle time control with monitoring of Move In, Check In, Check Out, and Move Out at each workstation.
• Quality Control
– Conduct real-time quality measurement immediately after production.
– Flexibly configure various shipment inspection reports and related projects, with instant determination of inspection results and automatic generation of shipment reports.
