About LTCC

About Low Temperature Co-fired Ceramics

Exemplary applications

Exemplary applications

 Low Temperature Co-fired Ceramic technology (LTCC) was developed around 30 years ago. LTCC were initially utilized only for the fabrication of multilayer substrates with integrated electronic components. Recently LTCC technology is used in the fabrication of ceramic packages with integrated electronic components.>>read more<<

 Technology stages

LTCC tape casting - Initially proper composition of glass frit, ceramic particles and organic material is mixed with solvents. This permits the possibility of a preparation of a slurry, which can be described as a quite dense liquid. This liquid is then put into a container with small gap, the gap height is set by a doctor blade position.>>read more<<

laser cuttingLTCC tapes cutting - These techniques are mainly used for forming different 3D shapes such as vias, chambers, channels, etc. >>read more<<

 

Stencil printing (via filling) - Laser cut or punched vias are filled with conductive paste which enables the fabrication of electrical connections between LTCC layers that will later be joined together. A stencil printing is mainly utilized in the via filling process. >>read more<<

Screen printing - Thick film deposition permits the fabrication of surface and embedded LTCC module resistors, capacitors, inductors, varistors, thermistors, dielectrics, etc. Hence, the electrical property diversity of such components is very good. The aforementioned fired LTCC modules can consist of both surface and embedded components integrated in the bare thick-film (without package). >>read more<<

Lamination - Tapes with cut shapes and deposited thick films are then laminated together (bonded). Typically this step is conducted at elevated temperatures of up to 90 °C under pressures up to 20 MPa for a proper period of time, 2–20 minutes. >>read more<<

 

Co-firing - Finally, the last but not least is co-firing. During this stage ceramic material is heated at strictly set conditions up to 900 °C. The organic vehicle is driven off and the glass flow joins the ceramic particles together. From this moment fired LTCC is very similar to standard ceramics – it is hard and brittle. >>read more<<