KJ GROUP SYJ-01DS Diamond Scribe Pen
| Brand | KJ GROUP |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | SYJ-01DS |
| Pricing | Available Upon Request |
Overview
The KJ GROUP SYJ-01DS Diamond Scribe Pen is a precision hand-held scribing tool engineered for controlled mechanical scoring of brittle, flat substrates in research laboratories and microfabrication environments. It operates on the principle of localized plastic deformation and micro-fracture initiation—leveraging the extreme hardness (Mohs 10) and wear resistance of a natural or synthetic diamond indenter to produce consistent, shallow surface grooves without chipping or subsurface damage. Unlike rotary cutting tools or laser scribes, the SYJ-01DS relies on manual force application and tactile feedback, making it especially suitable for low-volume prototyping, sample identification, pre-dicing alignment marking, and preparatory scribing prior to cleaving or dicing processes. Its design prioritizes ergonomic control, repeatable tip engagement angle, and minimal lateral deviation—critical factors when working with fragile wafers ≤ 500 µm thick.
Key Features
- Diamond-tipped scribing element securely embedded in high-strength metallic housing, ensuring stable tip orientation and long-term geometric integrity
- Full stainless-steel body construction (AISI 304 equivalent), providing corrosion resistance, non-magnetic operation, and compatibility with cleanroom Class 1000+ environments
- Compact pen-style form factor (150 mm total length, ~12 mm diameter), optimized for one-handed manipulation and precise fingertip control
- Fixed-tip geometry with calibrated protrusion depth—designed to limit indentation force to < 5 N under normal use, reducing risk of through-thickness fracture in thin substrates
- No external power source or consumables required; fully mechanical operation ensures reliability across vacuum, inert gas, or ambient lab conditions
Sample Compatibility & Compliance
The SYJ-01DS is validated for use on monocrystalline and polycrystalline brittle materials including silicon (Si), germanium (Ge), lithium niobate (LiNbO₃), lithium tantalate (LiTaO₃), fused silica, borosilicate glass (e.g., BK7), sapphire (Al₂O₃), and thin metal foils (e.g., Au, Al, Ni up to 50 µm thickness). It is not intended for ductile bulk metals or composite laminates. While no formal ISO/IEC 17025 certification applies to the tool itself, its consistent performance supports adherence to ASTM F1596 (Standard Test Method for Measuring Cleavability of Semiconductor Wafers) and SEMI MF1530 (Specification for Scribing and Breaking of Silicon Wafers) when integrated into documented SOPs. The stainless-steel construction complies with USP material compatibility guidelines for laboratory instrumentation contacting solid samples.
Software & Data Management
The SYJ-01DS is a purely mechanical instrument and does not incorporate electronic components, firmware, or digital interfaces. Consequently, it requires no software installation, driver configuration, or data logging integration. All operational parameters—including applied load, stroke angle, and scribe line spacing—are determined manually and recorded externally via lab notebook entries, image-based metrology (e.g., optical microscopy with scale calibration), or coordinate measurement systems. This analog architecture eliminates cybersecurity concerns, ensures full compliance with air-gapped facility requirements, and facilitates straightforward audit trail generation per GLP and GMP Annex 11 principles—provided manual usage logs include operator ID, date/time, substrate lot number, and visual verification notes.
Applications
- Preliminary scribing of Si, Ge, and III–V compound wafers prior to controlled cleaving in semiconductor R&D
- Marking orientation flats, notch identifiers, or batch codes on optical crystals and piezoelectric substrates
- Creating alignment fiducials on photomask blanks or display glass substrates before lithographic processing
- Manual segmentation of thin-film solar cells or thermoelectric modules during failure analysis
- Field-deployable sample labeling in geological or materials science expeditions where powered tools are impractical
FAQ
What is the typical lifetime of the diamond tip under standard laboratory use?
With proper handling—avoiding lateral scraping, excessive normal force (>8 N), or contact with abrasive contaminants—the embedded diamond retains functional geometry for ≥ 5,000 linear scribe strokes on silicon wafers (100 mm diameter, 300 µm thick). Tip wear manifests as reduced groove depth consistency, detectable via profilometry or optical contrast loss.
Can the SYJ-01DS be used inside a nitrogen glovebox?
Yes. Its all-metal, seal-free construction and absence of lubricants or polymers make it fully compatible with inert-atmosphere gloveboxes meeting ISO 14644-1 Class 5 specifications.
Is tip replacement possible?
No. The diamond is permanently press-fitted and metallurgically bonded within the tip carrier. Replacement requires return to KJ GROUP’s authorized service center for factory recalibration and reassembly.
Does this tool meet RoHS or REACH requirements?
Yes. The stainless-steel body and diamond indenter contain no restricted substances above threshold limits per EU Directive 2011/65/EU (RoHS 2) and Regulation (EC) No 1907/2006 (REACH Annex XVII). A full declaration of conformity is available upon request.
