Every pad carries a complete manufacturing record, from raw material to delivery
Connecting work orders, raw material lots, equipment process parameters, inspection results and finished-goods identification into one digital data chain that runs from material preparation and forming through precision machining and laboratory testing to finished-goods delivery.
The real challenge is connecting material lots, equipment process parameters, precision machining and laboratory results — and continuously monitoring the stability of product performance and production lots.
Premixing, casting and vulcanization involve key variables such as temperature, pressure, flow rate, mixing speed and time. When these records are scattered, it is difficult to reconstruct the manufacturing conditions after a quality deviation occurs.
PLCs, CNCs, inline inspection equipment and controllers from different vendors use different interfaces, and some parameters still rely on manual transcription, increasing the risk of missing or incorrect data and making cross-process analysis harder.
Density, hardness, thickness, compressibility, peel force, SEM and groove data come from different instruments. Only when these results are linked to work order, product and lot can quality causes be analyzed alongside the manufacturing process.
Even when a reading is still within specification, a sustained shift may already be developing. Manufacturers need SPC / CPK analysis, WECO Rule detection, OCAP handling and first-article interception to work together.
CMP polishing pad production involves material preparation, precision machining and multiple physical property tests. Only by linking every key process through work orders and product barcodes can raw materials, equipment, operators, process parameters and inspection results form a queryable data chain.
Raw Material Registration → Incoming Inspection → Preheating → Window Making → Premixing
Before production begins, raw material lots are registered, verified by scanning and linked to inspection data, establishing the material origin for all subsequent manufacturing records.
Casting → Vulcanization
Casting temperature, pressure, mixing speed, defoaming time and material flow rate are collected, while vulcanization temperature, time and mold position are recorded — establishing the manufacturing records that most affect product performance.
Slicing / Laser Engraving / Sanding / Grooving / Cleaning / 3D Inspection
Machining equipment, tool type and remaining life, production barcode and inspection results such as groove depth, width and pitch are linked together; first-article judgment and tool mounting verification provide shop-floor error-proofing.
Lamination → Labeling → Final Inspection → Packaging → Finished-goods Receipt → Shipping
Lots of liner and adhesive auxiliary materials and lamination conditions such as roller temperature, air pressure and tension are linked, connecting final inspection with labels, carton codes and shipping data.
Running through the whole process: unit-level traceability, process track-in/track-out, key parameter collection, laboratory inspection, and forward and backward product traceability.
The processes above are grouped according to the reference project to present a typical CMP polishing pad digital manufacturing scenario. They are not a fixed production sequence for every manufacturer; the actual routing follows each company's own process design.
Six industry application scenarios covering material input, process data collection, shop-floor error-proofing, laboratory data, quality analysis and full traceability.
Every material input has a traceable source.
Raw materials are registered and verified by PDA scanning against the production work order, the actual lot used is recorded, and incoming inspection and key material indicators such as MOCA purity are linked. When a product anomaly occurs, the relevant raw material lots can be checked against the manufacturing record.
Turning key forming conditions into analyzable data.
Mixing temperature, rotational speed, pressure, defoaming time, melt temperature and material flow rate are obtained through equipment interfaces; in vulcanization, process temperature, time and mold position are recorded and linked to the corresponding production lot.
Turning process requirements into enforceable control rules.
For slicing, sanding, grooving and edge trimming, tool type, mounting verification, usage count and life are managed. 3D inspection captures groove depth, width and pitch; when first-article inspection fails, the system can intercept subsequent production accordingly.
Results from different instruments enter the same quality record.
RockPlus LIMS centrally manages inspection tasks and test reports. For hardness testers, thickness gauges, universal tensile machines, SEM and density meters, test data is obtained by PDF parsing, Access database reading, device interfaces or assisted entry, depending on each instrument's capability.
Test items include density, hardness, thickness, compressibility, peel force, air permeability, light transmittance, groove dimensions, SEM and MOCA purity.
Not only whether it passes, but whether the process is changing.
SPC analysis is established for product, equipment and raw material indicators, CPK is used to observe process capability, and WECO Rule identifies potential out-of-control signals such as sustained shifts. When an anomaly occurs, OCAP records the cause analysis, corrective actions and outcome.
Trace a pad to its full manufacturing history, or an abnormal lot to affected products.
Raw material lots, work orders, processes, production equipment, process parameters, tooling and fixtures, laboratory results, product labels, packaging and shipping information are all linked; the ERP interface connects orders, work orders, materials, inventory and shipping.
The physical properties of a CMP polishing pad are closely tied to manufacturing conditions. Meaningful quality management should not stop at a laboratory report — it requires continuous analysis across production lots, equipment parameters and process records.
| Dimension | Typical analysis objects | Business purpose |
|---|---|---|
| Product SPC | Density, hardness, thickness, compressibility, SEM, etc. | Observe lot-to-lot differences and trends in material properties |
| Equipment SPC | Casting, vulcanization, slicing, grooving and related production indicators | Observe the stability of equipment and process conditions |
| Raw material SPC | MOCA purity and other key material indicators | Analyze the potential impact of incoming material variation on downstream quality |
The system judges results not only against specification limits but also against the trend and distribution of consecutive data points. Once a potential anomaly is identified, cause analysis can be carried out against the corresponding raw material, casting, vulcanization, precision machining and laboratory data, and the handling process tracked.
Quality loop: starting from inspection data, statistical analysis and detection rules trigger an anomaly, which OCAP handles with a full audit trail and continuous observation.
Casting, vulcanization and other manufacturing parameters, together with their product and lot relationships, provide the production context for quality analysis.
Inspection results can feed into production release, label printing and shipping decisions.
First-article interception, tool verification and other control points move quality requirements forward to the workstation.
Every inspection leaves more than a report — it becomes the basis for the next process improvement.
Built on RockPlus MOM, with RockPlus MES + RockPlus LIMS as the core
Facing numerous processes, complex equipment protocols, a broad range of laboratory test items and the difficulty of linking manufacturing with quality data in CMP polishing pad production, Hegong Software worked around the customer's actual shop floor and laboratory operations to implement equipment connectivity, production execution, inspection data management and statistical quality analysis.
Across 12 core processes — preheating, casting, vulcanization, slicing, laser engraving, sanding, grooving, cleaning, 3D inspection, lamination, labeling and inline inspection — multiple equipment and data sources are integrated, including PLC, Modbus TCP, OPC, FANUC FOCAS and inline inspection data files.
Capability demonstrated: process parameters that previously stayed on the equipment are progressively converted into manufacturing data linked to product and lot.
RockPlus MES uses production work orders, product barcodes and PDA track-in/track-out as the backbone to manage material verification, manufacturing execution, equipment parameters, mold position, tooling and fixtures, lamination auxiliary materials, finished-goods labels and shipping information.
Capability demonstrated: forward and backward traceability covering raw materials, production, laboratory results and finished-goods delivery.
RockPlus LIMS manages inspection tasks, instrument data and test reports for MOCA purity, density, hardness, thickness, compressibility, peel force, SEM, air permeability, light transmittance and groove dimensions, and links them to MES products and lots.
Capability demonstrated: the laboratory moves from issuing standalone reports to becoming a key source of manufacturing quality data.
SPC / CPK analysis is carried out across product, equipment and raw material dimensions, WECO Rule identifies abnormal data trends, and OCAP documents the handling process. First-article interception and tool error-proofing are extended to the workstation.
Capability demonstrated: quality focus moves from the final result to process variation and anomaly handling.
| Dimension | Previous problem | Management capability established |
|---|---|---|
| Equipment connectivity | Parameters scattered across multi-brand equipment | Collection via multiple protocols and file methods, key parameters linked to lot |
| Production execution | Process information hard to query continuously | Work order, barcode, PDA and equipment data form one execution chain |
| Laboratory | Results kept separately in reports or instruments | LIMS manages inspection tasks, instrument data and quality reports |
| Process quality | Dependent on single-pass conformity judgment | SPC / CPK, WECO Rule trend detection and OCAP |
| Traceability | Manual search across multiple steps | Raw material, process, equipment, inspection and delivery data linked |
| Enterprise systems | ERP and shop-floor data relatively disconnected | Orders, work orders, inventory, receipt and shipping connected |
Work orders, key equipment parameters, operation records and process status are linked to product and lot, helping production and process teams reconstruct the manufacturing process more clearly.
Scan verification, tool mounting checks and first-article interception move part of the risk control forward to material input and actual machining.
Laboratory results are linked to raw material, equipment and process records, allowing quality staff to analyze issues in the context of manufacturing conditions rather than isolated reports.
SPC / CPK and WECO Rule identify potential variation, while OCAP tracks handling and continuous observation, supporting lot consistency management.
Raw material, manufacturing, equipment, inspection, packaging and shipping information are organized around the product barcode, supporting investigation and review after quality feedback.
Common questions about system selection, process coverage, equipment integration, quality analysis and traceability for the CMP polishing pad industry.
MES records what a product experienced; LIMS records how it tested. The performance of a CMP polishing pad is determined jointly by raw material lot, casting and vulcanization conditions, precision machining state and multiple physical properties. Only when both sets of data are linked to the same product and production lot can quality engineers trace a deviation back to raw material, equipment and process conditions instead of looking at an isolated test report.
It covers four stages: material preparation and pre-treatment (raw material registration, incoming inspection, preheating, window making, premixing), casting and vulcanization, precision machining and in-process inspection (slicing, laser engraving, sanding, grooving, cleaning, 3D inspection), and lamination, final inspection and delivery (lamination, labeling, final inspection, packaging, warehousing, shipping). The specific routing, formulation and quality control requirements are configured to each manufacturer's actual process rather than assumed.
The integration method is chosen according to each device's actual openness. PLC and CNC equipment can be collected through interfaces, databases or industrial protocols, while inline inspection equipment and laboratory instruments can use device interfaces, database reads, PDF parsing or assisted manual entry. Key parameters such as mixing temperature, rotational speed, pressure, defoaming time, melt temperature, material flow rate, vulcanization temperature and time, and mold position ultimately enter the product and lot record. The exact scope is confirmed against the on-site equipment models and interface conditions.
SPC turns consecutive inspection results into statistical process control data for observing trends in density, hardness, thickness, compressibility, peel force, groove dimensions and other characteristics. CPK measures process capability and indicates whether a process can consistently produce conforming output. WECO Rule detects potential abnormal trends such as sustained shifts and one-sided distribution, raising an early warning even when values remain within specification. OCAP records root cause analysis, corrective actions, owners and verification results for identified anomalies, forming a traceable quality loop.
With work order, lot and product barcode as the backbone, raw material lots, production equipment, operators, process parameters, mold position, tooling and fixtures, auxiliary material lots, laboratory results, product labels, carton codes and shipping information are all linked. You can trace forward from a finished pad to its complete manufacturing history, or backward from an abnormal raw material lot or production lot to the affected product range, providing the data basis for quality complaint handling, lot disposition and subsequent process improvement.
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