In the field of medical device manufacturing, the demand for micro-hole machining shows a notable "polarization" trend: on one hand, emerging applications such as in vitro diagnostic chips, sustained-release drug membranes, and microneedle arrays have pushed the lower limit of aperture down to 3 microns; on the other hand, mature products including drainage tubes, sheaths, and filters still require conventional micro-holes with diameters ranging from 0.1 to 0.5 millimeters. How to cover the aperture range from 3 microns to hundreds of microns with a single technical platform, and provide verifiable customized solutions for each material and each hole type, is the core output of Jiajiayong Laser's 29 years of technical accumulation.

Ⅰ、Aperture Range Division: Not "One Machine for All Applications", but "One System Covering All Scenarios"

Jiajiayong Laser's practice proves that trying to cover the aperture span from 3μm to 500μm with a single optical module will sacrifice precision at both ends of the range. Therefore, we divide the aperture into three intervals, each equipped with a dedicated module, but all share the same control system and automation interface:

• · 3-10μm ultra-micro hole interval: Adopt femtosecond laser (pulse width < 350fs) + high numerical aperture objective lens (NA ≥ 0.5), with a focused spot diameter of 1.5-3μm and a focal depth controlled within 5μm. Cooperated with a nano-level piezoelectric displacement stage (resolution 1nm), it achieves a positioning accuracy of ±0.5μm. It is suitable for microneedle arrays, sustained-release drug membranes, nerve stimulation electrodes, etc.

• · 10-100μm precision micro-hole interval: Adopt UV nanosecond laser (355nm) + variable spot galvanometer (2-20μm adjustable), balancing efficiency and precision. Through the "layer-by-layer scanning + zoom compensation" algorithm, the taper is controlled within 2μm. It is suitable for vascular stents, catheter side holes, filter screens, etc.

• · 100-500μm conventional micro-hole interval: Adopt fiber laser or infrared nanosecond laser + large spot galvanometer (20-80μm), combined with high-speed on-the-fly drilling mode, to achieve a processing speed of 100 holes per second. It is suitable for drainage tubes, sheaths, housing ventilation holes, etc.

This strategy of "dedicated modules for different intervals, unified system for overall operation" ensures that each aperture interval can obtain the optimal process performance, while customers only need to cooperate with one supplier and adapt to one set of data interfaces.

Ⅱ、Material Characterization and Rapid Calibration: Making the "Process Database" Truly Practical

Jiajiayong Laser has accumulated a process database covering more than 200 types of medical materials, but the ablation threshold of the same material from different batches (such as TC4 titanium alloy) may fluctuate. For this reason, we have integrated a "rapid calibration module" into the equipment:

• · When a customer processes a certain batch of materials for the first time, the equipment automatically performs 5 pulse tests in the waste area (energy density increases from 2J/cm² to 10J/cm²);

• · The coaxial spectrometer monitors the plasma signal in real time, automatically identifies the ablation threshold and corrects the recommended parameters in the database;

• · The corrected parameter package is locked as exclusive for this batch, and no repeated calibration is required for subsequent processing.

This mechanism compresses the introduction cycle of new materials from 1-3 weeks to 30 minutes, while ensuring consistency between batches. At present, it has been verified on more than 20 kinds of medical materials such as titanium alloy, cobalt-chromium alloy, PEEK, and zirconia ceramic, with CPK stable above 1.33.

Ⅲ、Modular Architecture Oriented to Medical Compliance: Customization Without Sacrificing Compliance

Medical customers' verification requirements for equipment (IQ/OQ/PQ) are an unavoidable constraint for customized solutions. Jiajiayong Laser's solution is "standardized hardware modules + pre-verified process formulas":

• · Hardware modules: Lasers, motion axes, vision systems, and loading/unloading mechanisms are all standard modules that can be flexibly combined. Each module has passed CE/FDA certification and provides separate verification documents.

• · Process formulas: All processing programs (hole type, arrangement, parameters) are written and encrypted by Jiajiayong Laser engineers before the equipment leaves the factory, and customers select preset formulas through the touch screen (such as "3μm round hole - TC4 - depth-to-diameter ratio 5:1"). Each formula is attached with a complete verification report (including aperture CPK, hole wall SEM, beat data).

• New formula addition: If new hole types or materials are required, customers send samples, and Jiajia Laser completes process development and verification within 3-5 working days, and remotely unlocks the new formula after issuing a supplementary verification report.

Ⅳ、Delivery Capability of Jiajia Laser: From 3μm to 500μm, From Single Hole to Millions of Holes

Based on the above technical system, Jiajia Laser has achieved the following verifiable engineering indicators in the field of medical precision micro-hole processing:

Indicator Item	Measured Value
Minimum processing aperture	3μm (metal/polymer/ceramic)
Processing accuracy (static repeat positioning)	±1μm
Maximum drilling speed	100 holes/second (thin-wall materials)
Maximum depth-to-diameter ratio	20:1 (controllable taper ≤2μm)
Hole wall quality	No burrs, no flash, no heat affected zone
Material compatibility	Stainless steel, titanium alloy, cobalt-chromium alloy, TPU, silicone, PEEK, alumina ceramic, etc.
Supported hole types	Round hole, square hole, special-shaped hole, tapered hole, stepped hole, group hole array, spiral arrangement
Automation integration	Support visual positioning, automatic loading/unloading, assembly line docking, MES data traceability

The equipment supports exclusive non-standard customization, and can provide complete solutions from stand-alone machines to fully automatic production lines according to customers' specific needs (aperture, material, batch size, automation degree). At present, it has served more than 500 successful cases, covering medical sub-sectors such as cardiovascular intervention, orthopedic implantation, in vitro diagnosis, and drug delivery.

ⅤSuggestions for Those Evaluating Medical Micro-hole Processing Solutions

There is no "standard answer" for medical precision micro-hole processing, and the optimal solution depends on your specific needs: material grade, aperture tolerance, depth-to-diameter ratio, batch size, compliance level. Jiajiayong Laser suggests: send samples first, then make a decision.

You only need to provide:

• · Workpiece material and thickness (please indicate the grade)

• · Target aperture, tolerance, and hole type drawings

• · Daily production capacity target and automation requirements

Our application verification center will complete free sample processing within 3-5 working days, and issue a process report including aperture, hole wall quality photos, taper measurement data, beat estimation, and comprehensive cost comparison. For 29 years, the tenet of Jiajiayong Laser has remained unchanged: make no hole difficult to drill in the world. No matter your micro-hole is as small as 3 microns or as large as 500 microns, we can find a customizable path for mass production for you.