RDS_Magazintrockner_en.pdf - 第3页

A new world of dr ying methods with the RDS magazine dryer from Rehm The new RDS magazine dryer from Rehm is the perfect sys- tem with inert gas operation for tempering power modules. The system can reach temperatures of…

Optimal for power modules

and high-temperature applications

ThedecidingcompetitivefactoroftheGermanenergysupplysystemisnolongerjustthe

cost.Innovativeperformance,reliabilityandlikelihoodofbeingacceptedontheglobal

marketarenowmuchmoreimportantfactors.Therefore,electroniccomponentsandthe

suitableoutlettechnologyandconnectiontechnologyhaveakeyfunction.

The rapid grid expansion for renewable energy, which followed the energy transition, presents

manufacturers of power electronic systems with the task of supplying the market with relia-

ble systems. The increasing demands of the energy suppliers and the demand for reliability

and sustainability present many challenges to system development. To achieve these perfor-

mance levels we must now enter into and extend offshore applications.

Rehm offers the new RDS magazine dryer for this area. The energy efcient and sustainable

system was developed as part of the HotAL research project (high temperature-optimised

AL-bonding technology for offshore applications). The goal is to optimise performance

electronics modules through the use of innovative materials and process management for

high-temperature applications. Along with Rehm, Fraunhofer IZM Berlin and the industry

partners Heraeus, SEMIKRON and F & K Delvotec Bondtechnik took part in this project that

was supported by BMBF.

Drying |

Hardening

New techniques for electronic

components in the high-performance area

A new world of drying methods

with the RDS magazine dryer from Rehm

The new RDS magazine dryer from Rehm is the perfect sys-

tem with inert gas operation for tempering power modules.

The system can reach temperatures of up to 300 °C and re-

sidual oxygen values of less than 5,000 ppm O

. It impresses

with its innovative lock system as well as thermal insulation

that enables a stable elevation prole when in process. The

RDS magazine dryer is particularly suitable for the thermal

treatment of semiconductor applications, hybrid const-

ructions and electronic components that are transported

in magazines. Examples of these would include electronic

components in wind turbines, electric cars or inverters in the

solar energy sector.

Temperatures up to 300 °C possible

Residual oxygen values <5000 ppm O

possible

 Stableelevationprolethroughlocksystemandgoodthermalinsulation

 Steadyheatingofcomponentsatthelowest∆T

 High-performancecoolingzoneswithtemperaturesof20°C

Technicaldetails

An overview of the RDS magazine dryer

The system consists of a lock system at the inlet and the

outlet, four heat zones, and a cooling zone. In order to

achieve an atmosphere with low levels of oxygen, locks on

the magazine are necessary where possible. A three-part

handling process at the inlet and outlet guarantees that the

compartments can open and close independently of each

other. In this way, an inert process chamber is guaranteed

in every loading situation. The magazines are transferred

to the lock zones with a so-called lifting transport. During

the loading process, the lifting transport unit with the hoist

is lowered below the level of the transport chamber and

simultaneously unloads the magazine onto this. The maga-

zine is unloaded using the opposite principle.

The magazine dryer prototype can be loaded and unload-

ed manually. The system is designed so that it can be fed

using a handling system if necessary. Due to the flexible

transport options, a small throughput during prototype pro-

duction as well as a high throughput during future regular

service is possible. Magazines with the maximum dimen-

sions of 460 mm high, 240 mm wide and 240 mm deep

can be transported using a three-part handling process

with a base carrier plate. The cycle time can be a minimum

of 3 minutes up to a maximum of 24 hours.

There is good thermal separation from the process

chamber due to the compartments and the 80 mm thick

insulation. The exchange of hot and cold gas flows can be

effectively prevented which results in lower electrical power

consumption.

1.

Loading of the magazines by

hand or using a handling system

in the goods carriers with exact

positioning.

3.

tunnel

A low level of residual oxygen in

the N

tunnel is guaranteed due to

the lock system. Compartments

eliminate air leakage.

5.

Cooling

Optimal thermal separation is

achieved through a compartment

between the heat and cooling zone.

Cooling zone temperatures of 20 °C

are possible.

7.

Lifting transport/Outlet

The locks in the outlet area ensure

a lower ppm value in the process

chamber and a stable elevation

prole.

4.

Pre-heating/Heating

The four heat zones guarantee

steady heating of all the com-

ponents in the magazine at the

lowest ∆ T.

2.

Liftingtransport/Inlet

A lifting mechanism feeds the

magazines to the process cham-

ber transporter.

6.

tunnel

The locks in the outlet area

ensure a lower ppm value in the

process chamber and a stable

elevation prole.

8.

Unloading

Manual or automated unloading of

the magazine.

1.

6.

7.

8.

2.

3. 4. 5.