ECRIM Thick film product ( Thick film substrate/Thick film resistor) capability
Passive network is fabricated on the same substrate by thick film process such as screen printing and sintering. The circuit design has great flexibility and short development cycle. It is suitable for mass production and has an annual output value of more than 100 million. In terms of electrical performance, it can withstand higher voltages, greater power and larger currents.
2. Product Features
Front and back metallization, can punch metallization, can realize chip bonding, device bonding and welding functions.
3. Technical Index
Substrate materials: AlN, AI2O3, BEO,
Line width/line spacing: 75um
Metallized materials: Au, Pd/Ag, Ag, Cu
4. Typical Product
Thick film substrate for hybrid circuit, thick film substrate for power device, power resistor, attenuator
5. Application Domain
Aerospace, computer, automobile, communication, consumer and other electronic products.
Due to the positive properties of the ceramic base material, thick film circuits are used as a priority in areas which are characterised by harsh environmental conditions (high/low temperatures, temperature changes, moisture, vibrations, accelerations etc.). This technology meets the requirements of the highest integration, reliability, lifetime and environmental compatibility.
Areas of application include industrial electronics, medical electronics as well as automotive and aerospace industry.
Thick film hybrid technology is a widely-used technology for the
manufacture of a ceramic or other type of circuit boards. Due to its high
degree of integration, thick film substrates form the basis of High Density
In an initial manufacturing phase, the structures are applied by means of a
silk-screen process onto the relevant substrate material such as aluminium
oxide (Al203) or alumina (AIN). Conductors, resistors, insulations and overglazes can
be manufactured. Gold, silver and platinum or palladium alloys are generally
used as conductive materials. The standard thick film process are printing,
drying and firing. The firing process at about 850 °C guarantees the final film
properties such as electrical values and adhesive strength.
Thick film technology enables a very simple and flexible
manufacture of multilayers with several conductive layers on the front and back
side of the substrate.
Minimum structure resolutions of 80 - 100 µm can be achieved with this
Printed resistors can be trimmed to a output signal of a hybrid circuit. In
principle all electronic components can be assembled on a thick film substrate.
Therefore solderable as well as bondable surfaces are available.
The benefits compare to traditional printed circuit boards are in
the thermal and electrical properties of the thick film substrate material.
Ceramics are very heat-conductive and as one of the chip base materials, are
therefore optimally matched to the TCE of silicon. The above mentioned
structure resolutions and the integration of printed, passive components make a
circuit miniaturisation possible.
ECRIM thick film product process line capability
Layer thickness testing
Line-width/Space 125 um /100um
Substrates Al2O3, ALN
Conductors Au, Ag, PtAg, PaAg, PtPaAu
Bonding Au, Si-Al
Hermetic sealed Metal Package
Resistors’s tolerence ≤±1%
Resistor TCR ±100ppm/℃
Resistor Tracking ±25ppm/℃
Ω/Sq Resistor Range 1-10M
Number of multilayers 6 (up)
Size of substrates 120mmx120mm (up)
Inspection standard MIL-PRF-38534 CLASS H
Annual Total output : 1,000,000 units