Equipment Name: Crystal Automatic Bonding and Assembly Equipment

The crystal automatic bonding and assembly equipment is designed for the application scenarios of optical crystals (such as quartz crystals, lithium niobate crystals, sapphire crystals, etc.) in fields like optical communication, lasers, semiconductors, and consumer electronics. It achieves precise bonding and assembly of crystals with substrates, carriers, or other components through automation. Its core function is to replace traditional manual operations, addressing issues such as fragility, significant positioning deviations, and poor consistency during the bonding process of crystals (mostly brittle, high-precision components). By integrating high-precision mechanical transmission, visual positioning, process control, and online inspection modules, it ensures the optical performance, structural stability, and production yield of bonded crystals. It is a key piece of equipment for the large-scale production of crystal devices (such as crystal filters, laser crystal components, and optical modulators).

1. Core Functions and Workflow   %%   The equipment is designed for full-process automation around "crystal precision picking - positioning alignment - process lamination - quality inspection," with specific steps as follows:   %%   Material Loading and Preprocessing   %%   ※ Equipped with customized loading modules: For crystal sizes (ranging from millimeter to centimeter scale) and forms (sheet, block, thin flexible crystals), it offers tray loading (suitable for regular crystals), vacuum nozzle loading (for thin/fragile crystals), or vibratory bowl loading (for small standardized crystals). Substrate/carrier loading typically employs belt transmission or robotic arm transfer, with some models integrating substrate cleaning modules (e.g., plasma cleaning, dust-free wiping) to remove surface oil/dust, preventing impacts on adhesion or optical performance.

The equipment is designed with full-process automation around "precise crystal grasping - alignment positioning - process bonding - quality inspection," with specific steps as follows:

Material Loading and Preprocessing

※Equipped with customized loading modules: For crystal dimensions (ranging from millimeter to centimeter scale) and forms (sheet, block, thin flexible crystals), options include tray-based loading (for regular crystals), vacuum nozzle loading (for thin/fragile crystals), or vibratory bowl loading (for small standardized crystals). Substrate/carrier loading typically employs belt transmission or robotic arm transfer, with some models integrating substrate cleaning modules (such as plasma cleaning or dust-free wiping) to remove surface oil/dust and prevent bonding adhesion or optical performance issues.

※Material Identification and Error Prevention: Through visual pre-positioning or barcode scanning, confirm the compatibility between the crystal model, orientation (e.g., crystal optical axis direction), and substrate to prevent process waste caused by material errors.

High-precision Dual-Vision Positioning

Alignment, as the core process of equipment, needs to achieve micron-level alignment for both "crystal positioning" and "substrate positioning" to ensure bonding accuracy:

※ Crystal-side positioning: Uses high-magnification industrial CCD (with telecentric lens and coaxial light source) to capture crystal contours, edges, reference points (e.g., notches, grooves), or optical axis markers, calculating deviations (X/Y-axis offset, rotation angle) between actual and theoretical positions;

※ Substrate-side positioning: Simultaneously identifies bonding area markers (e.g., fiducial marks, pad contours) on the substrate to correct placement offsets;

※Dynamic Compensation: The vision system transmits deviation data in real-time to the motion control system, driving the bonding head to dynamically adjust along the X/Y/θ axes. The positioning accuracy can reach ±0.5~3μm (depending on crystal application scenarios, higher precision of ≤±1μm is required in laser/optical communication fields).

Bonding Process Execution (Core Stage)

The bonding head, as the execution core, requires customized design based on crystal characteristics and bonding requirements (e.g., presence of adhesive layer, need for thermal compression). Key process controls include:

Pressure Control: Utilizing piezoelectric sensors or servo motor drives to achieve adjustable pressure output ranging from 0.05~50N. For brittle crystals (e.g., lithium niobate), a "soft contact" mode (low pressure + slow speed) is adopted to prevent edge chipping or cracking. Temperature Control (optional): For thermal curing adhesives (e.g., epoxy) or anisotropic conductive film (ACF) bonding, the bonding head integrates a heating module with a temperature range of 50~200°C and control accuracy of ±1°C, ensuring complete adhesive curing without compromising crystal optical properties. Adhesive Layer Control (optional): Some models incorporate dispensing modules (e.g., jet dispensing valves) for precise adhesive application on substrate bonding areas (adhesive volume error ≤ ±5%) or accommodate pre-coated substrates to guarantee uniform adhesive thickness (avoiding bubbles or local adhesive deficiency).

Compression Curing and Shaping (Optional)

For scenarios requiring enhanced bonding stability, the equipment can integrate follow-up processing modules:

Lamination Module: Adopts roller lamination (suitable for elongated crystals) or flat plate lamination (suitable for flake crystals), applying uniform pressure (0.1~10N) to eliminate adhesive layer bubbles and enhance bonding strength.

Curing Module: Configure a UV curing lamp (for UV adhesives) or a constant-temperature curing chamber (for thermally cured adhesives) based on the adhesive type, achieving an integrated "alignment - pressing - curing" process to avoid secondary displacement during material transfer.

Online Inspection and Sorting

After alignment completion, multi-dimensional inspection ensures product quality:

Appearance Inspection: The vision system identifies defects such as crystal damage, chipped edges, adhesive layer bubbles, and excessive displacement.

Optical Performance Testing (Premium Models): Integrated spectrometers or laser interferometers conduct sampling tests on optical parameters post-crystal alignment, including transmittance, polarization state, and phase difference (e.g., laser crystal components require laser output efficiency testing).

Sorting action: Qualified products are conveyed to the next process (e.g., encapsulation, cutting), while defective items are automatically sorted into the waste bin, with defect types recorded (e.g., "crystal edge chipping," "excessive offset"), supporting subsequent process parameter optimization.

II. Core Advantages

High Precision and Low Loss Foundation

"Vision Positioning + Piezoelectric Drive" technology achieves a fitting accuracy of ±0.5μm (meeting the stringent requirements for crystal alignment in optical communication and laser fields). Additionally, "soft contact" pressure control and customized vacuum chucks reduce crystal breakage rates from 5%~10% in manual operations to below 0.1%, significantly minimizing material loss.

Efficient mass production adaptation

Supports multi-station parallel operation (e.g., 2~4 bonding heads working simultaneously), with a single machine capacity reaching 200~800 pieces per hour (adjustable based on crystal size and process complexity), achieving 8~15 times the efficiency of manual labor; it can also integrate with upstream and downstream equipment (such as crystal cutting machines, substrate coating machines, and finished product inspection machines) to form a fully automated production line, meeting the demands of large-scale production.

High process compatibility with modular design

Supports multiple bonding scenario switching: By replacing bonding heads (e.g., switching from "vacuum suction cup type" to "mechanical gripper type"), adjusting pressure/temperature parameters, and adapting dispensing/curing modules, it can cover various applications such as bonding quartz crystals with ceramic substrates (e.g., crystal filters), lithium niobate crystals with fiber arrays (e.g., optical modulators), sapphire crystals with metal carriers (e.g., consumer electronic lenses), and is compatible with crystal sizes ranging from 0.1mm to 50mm.

Intelligence and traceability

Equipped with dedicated process software, supporting: recipe storage: saves process parameters such as pressure, temperature, and speed for different crystal products (capable of storing 100+ recipes), enabling one-click recall when switching products;

Data Management

Real-time statistics on production capacity, yield, and defect rates, with support for exporting Excel reports;

MES system integration: Upload production data to enterprise management systems to achieve full-process traceability and meet the quality control requirements of high-end manufacturing.

3. Typical application scenarios

Optical communication field

Lithium niobate (LiNbO₃) crystal and fiber array/substrate bonding: Used in manufacturing optical modulators (core devices for 5G/6G communication), requiring precise alignment of the crystal optical axis with the fibers, with equipment positioning accuracy ≤±1μm to avoid signal transmission loss;

Quartz crystal and ceramic substrate bonding:

Used for producing crystal filters (signal filtering components in communication equipment), ensuring stable crystal resonance frequency after bonding, with pressure control precision required to be ≤±0.05N.

Laser and Optical Fields

Laser crystal (such as Nd:YAG, Yb:YAG) bonding with heat dissipation substrates: Used in high-power lasers, requires high-temperature pressing processes to enhance heat dissipation efficiency; equipment must support temperature control at 150~200°C and pressure output of 5~10N. Sapphire crystal bonding with optical lenses: Used in high-end camera lenses and LiDAR windows, ensures post-bonding optical transmittance (avoiding light transmission issues caused by adhesive layer bubbles or misalignment); equipment must integrate an online optical inspection module.

Consumer Electronics Sector

Quartz Crystal Bonding to PCB Substrate: Used in clock oscillators for devices like mobile phones and watches, requiring adaptation to miniaturized crystals (size ≤2mm×1.6mm). Equipment must support micro suction cups and high-speed positioning (frame rate ≥60fps). Ceramic Crystal Bonding to Flexible FPC: Applied in sensor modules for wearable devices, necessitating compatibility with flexible substrate characteristics. A low-speed, steady bonding process is employed to prevent FPC creasing or crystal damage.

Semiconductor and Precision Instrument Field

Silicon-based crystal and semiconductor chip bonding: Used in manufacturing high-precision sensors (such as infrared sensors), ensuring conductivity between the crystal and chip circuits (if ACF bonding is adopted). The equipment must integrate a conductivity detection module. Piezoelectric crystal and metal carrier bonding: Applied in vibration components of precision instruments, requiring guaranteed bonding strength (to withstand vibration environments). The equipment should support integrated pressing and curing processes.

IV. Customer Value and Service Assurance

1. Core Value Delivered to Customers

Cost Reduction: Replacing manual inspection reduces quality control labor costs by 30%-50%; minimizes waste from misjudging qualified products as defective, thereby lowering material loss;

Efficiency Improvement: Detection efficiency increases by over 5 times, boosting production line capacity and shortening delivery cycles;

Quality Improvement: Achieving industry-leading detection accuracy to ensure 100% of filters meet customer standards upon delivery, reducing complaint rates; Compliance: Full data traceability meets industry quality management system requirements, assisting customers in passing audits (e.g., IATF 16949 for automotive, GMP for medical, ISO 9001).

2. Full Lifecycle Service Assurance

Pre-sales Service: Offer free technical consultation, customize exclusive testing solutions based on the customer's filter types, detection needs, and production line layout;

During-sales Service: Provide free installation, debugging, and operator training (theory + hands-on practice) upon equipment arrival to ensure the customer's team can operate independently;

After-sales service: 1-year free warranty, 24/7 remote technical support (covering major industrial cities nationwide);

Value-added services: Equipment maintenance guidance, long-term support for customer production line optimization.

5. Contact Us

Company Name: Guangzhou Harley Automatic Control Technology Co., Ltd.

Detailed Address: 801D, Building 8, No. 638 Shishun Avenue, Shitan Town, Zengcheng District, Guangzhou City

Mobile: Mr. Lai 13924066971

Miss Yang 15989558269

For customized crystal automatic lamination assembly equipment solutions or equipment parameter manuals, feel free to contact us anytime! We will arrange a professional technical engineer to provide you with one-on-one service!