Vacuum Eutectic Furnace with Cold and Hot Separation, V4DM

Product Features

Welding Temperature: Actual welding temperature ≤ 600°C.

Vacuum Level: Ultimate vacuum ≤ 10 Pa, operating vacuum 50 Pa - 200 Pa.

Effective Welding Area: ≤380mm x 310mm

Furnace height: ≤100mm.

Heating Method: Bottom and top infrared radiation heating with a semiconductor-grade graphite-coated silicon carbide platform for the heating plate. The graphite-coated silicon carbide platform is resistant to deformation over long-term use and boasts excellent thermal conductivity, ensuring a more uniform surface temperature on the heating plate.

Temperature uniformity: ≤±2% within the effective welding area.

Rise Rate: The rise rate can reach 120℃/min.

The V4DM cold-heat separation vacuum eutectic furnace is equipped with top heating, enhancing heating efficiency while ensuring more uniform platform temperatures, thereby improving welding consistency and quality.

Cooling Rate: The cooling rate can reach 120℃/min (the unloaded temperature can reach -150℃ range).

Silicon Carbide Heating Platform: Utilizes a combination of air-cooling and water-cooling to rapidly cool the heating plate, enhancing the rate of temperature decrease, and preventing poor device sintering due to excessive temperature difference during the cooling process.

Meets welding requirements for various solders (≤450°C).

For example: Pre-formed solder sheets such as In97Ag3, In52Sn48, Au80Sn20, SAC305, Sn90Sb10, Sn63Pb37, Sn62Pb36Ag2, and various types of solder paste.

Weld porosity rate:

The V4DM hot-cold separation vacuum eutectic furnace has been verified by numerous customers during soft soldering material welding, achieving an air bubble rate of below 2%.

Optional Positive Pressure Module:

The equipment can be optionally equipped with a positive pressure module ≤0.2 Mpa, which can meet both positive and negative pressure process requirements. The positive pressure process can effectively resolve the issue of component displacement during welding (such as MiniLED, MicroLED, etc.) and address the problem of solder paste flux spattering in the soldering process (for lead frame products).

Thermal Control and Temperature Measurement Systems

The V4DM Cold & Hot Separation Vacuum Eutectic Furnace utilizes advanced temperature control technology, achieving a temperature control accuracy of ±1℃.

The V4DM vacuum eutectic furnace features a temperature curve that can be set in 40 segments, with 6 sets of PID settings for more precise temperature control, ensuring consistent and reliable welding. Temperature control is lag-based, while PID control offers predictive adjustment, enhancing both temperature control accuracy and stability.

The V4DM vacuum eutectic furnace cavity comes standard with 2 sets of thermocouples for temperature measurement. During operation, the equipment can provide real-time feedback on the temperature at any position within the cavity, and the control software displays the temperature curve in real-time, ensuring better temperature control of the welding area and supporting the achievement of an optimal process curve.

Cavity Atmosphere Environment

The V4DM vacuum eutectic furnace with heat and cold separation can be filled with inert nitrogen gas to assist in welding, while meeting the process requirements of formic acid and nitrogen-hydrogen mixed gas reduction atmosphere. The process atmosphere can be precisely controlled by time or by an MFC mass flow controller, ensuring consistency in each set process. Suitable for welding without flux.

V4DM Cold-Hot Separation Vacuum Eutectic Furnace Configuration Software Control System:

The software control system is based on the Windows operating system and is easy to operate.

Process programming can be achieved through conditions such as temperature, time, pressure, and vacuum, with the software automatically controlling the entire process.

The process action programming for the technological curve has an infinite number of options, meeting complex process requirements.

The control system meets various welding process curves and allows for settings, modifications, storage, and retrieval based on different processes.

The control system features an integrated analysis function, capable of analyzing process curves to determine information such as heating, constant temperature, and cooling.

The software control system automatically records the welding process and temperature control/monitoring curves in real-time, ensuring traceability of the component process, and automatically stores them in the corresponding directory according to the process working time.

The V4DM vacuum eutectic furnace with cold and hot separation utilizes an all-enclosed, fully automatic cavity structure, ensuring reliability for long-term use. The cover automatically closes during operation, preventing component displacement and avoiding vibration that could affect welding quality. The single-chamber process meets both heating and cooling requirements simultaneously.

V4DM hot-cold separation vacuum eutectic furnace, equipped with a viewing window for observing the sintering process of devices under a microscope. The lid automatically raises and lowers, with all operations except for manual handling of parts completed by software control.

The V4DM heating plate is made of pure material, without the addition of cold water pipes and other structures, ensuring a more even temperature distribution.

V4DM cooling utilizes the Zhongke Comrade's water cooling technology. Water cooling does not affect the uniformity of the heat field during heating. During cooling, each heating plate is equipped with six independent water cooling units, ensuring higher uniformity in cooling. Particularly suitable for high-quality sealing and welding of gold-tin eutectic and indium solder eutectic.

Standard Configuration

1. One main unit 2. One industrial-grade control computer 3. One vacuum sintering furnace control software system 4. Nitrogen atmosphere system, formic acid atmosphere system 5. One MFC mass flowmeter 6. Graphite-doped silicon carbide heating platform

Optional accessories

1. Vacuum Pumps (Mechanical Dry Pumps) 2. Molecular Pump Systems 3. Nitrogen-Hydrogen Digitalized Mixed Atmosphere System 4. Positive Pressure Modules 5. CCD Vision / Microscope 6. Nitrogen-Hydrogen Mixed Gas Atmosphere