Production of MultiLayer based electronic components – MLCC, MLCI, MLCV, LTCC
Keko Equipment is offering suitable machines for all major known production technologies of the following components:
- Multi-Layer Ceramic Capacitors
- Multi-Layer Chip Inductors
- Multi-Layer Chip Varistors
- Low Temperature Co fired Components
and others such as: Piezo, HTCC, EMI filters, etc. multi-layer based electronic components have similar production technologies, based on thin layer ceramic technology.
There are two core technologies known, so-called dry and wet technology.
Nowadays dry technology is most commonly used for production of MLCC, MLCI etc. components.
Here are basic production steps and suitable machines for dry production process:
Purpose of this step is to prepare ceramic powder to thin layer cast able suspension. For this purpose different types of jar mils are used.
- Tape Casting: Four different types of machines depending on further technology steps:
CAM-L-series laboratory type tape caster
CAM-S-series free standing type tape caster
CAM-C-series compact type caster
CAM-H-series horizontal drying zone type tape caster
To form thin ceramic foil from suspension for MLCC and other multilayer based components casting machines are used.
- Individual printed sheets can by dried in a (dryer SD-series)
- Tape Punching Machine: Some components like MLCI or LTCC requires punched sheets before printing and stacking to be used in order to have connections between individual layers (PAM-S-series). Punched sheet requires via filling in order to have good connections between the layers. For this application a manual P-series printer can be used.
- Laminating: After stacking the stack has to be laminated by pressure and temperature in order to achieve compact stack. For most components, including MLCC, isocratic pressing process is used in order to achieve uniform pressure on the surface (ILS-series). For some components an axial press is used (TPR-series)
- Cutting: Is a process where the stack is cut after laminating in to individual pieces. For this purpose our CM-series of automatic cutter can be used. Slitting: If the technology requires individual sheets before printing a SC-series Tape blanker cuts the sheets automatically from a roll of tape.
- In further steps a cofiring, contact termination (DM-6), testing & sorting (CS-10) and packaging (CTM-12) is done.
The most suitable technology for particular application depends on products type, production volume and dimension of product.
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