ACX has the ability to produce a variety of RF front-end devices and modules using LTCC technology. We offer in-house LTCC tape systems, which are compatible with DuPont and Ferro tape systems.
Characteristics | ACX | DuPont 951 | Ferro A6M |
---|---|---|---|
Dielectric Constant (@ 3GHz) | 7.5 | 7.8 | 5.9 |
Dielectric Loss (@ 3GHz) | < 0.33% | 0.43% | 0.20% |
TCE (25-300°C) (ppm/°C) | 4.7 | 5.8 | 7.0 |
ITEM | Standard (mm) | Advanced (mm) | |||||
---|---|---|---|---|---|---|---|
(A) Via diameter | 0.125, 0.1801 | Flexible (Min. 0.06) | |||||
(B) Min. via cover pad | ViaØ. + 0.03 | ViaØ. + 0.02 | |||||
(C) Min. via diameter / pitch (Flip chip) | 0.125/ 0.260 | 0.060 / 0.180 | |||||
(D) Min. spacing from via cover pad to line | 0.10 | 0.08 | |||||
(E) Min Line width | Nominal | 0.10 | 0.05 | ||||
Mean value tolerance | ± 0.015 | ± 0.010 | |||||
(F) Min. line spacing | 0.10 | 0.08 | |||||
(G) Min. spacing from via cover pad to substrate edge | 0.15 | 0.10 | |||||
(H) Min. spacing from conductor to substrate edge | 0.15 | 0.10 | |||||
(I) Min. dimension for extended terminal | 0.10 | 0.08 | |||||
(M) Min. spacing from ground plane to substrate edge | 0.15 | 0.10 | |||||
(N) Feed thru spacing | 0.15 | 0.10 | |||||
Conductor thickness | Nominal | 0.013 | 0.010 (Fine-line printing) | ||||
Tolerance | ± 0.003 | ± 0.002 | |||||
Tape thickness | Without stacked conductors2 | 0.024 | 0.035 | 0.046 | 0.052 | Flexible (Min/Max: 0.015/0.133)3 | |
0.094 | 0.104 | 0.129 | 0.147 | ||||
With stacked conductors | 0.020 | 0.030 | 0.040 | 0.045 | |||
0.080 | 0.090 | 0.115 | 0.133 | ||||
Tolerance3 | Thickness ³0.080 | ± 7 % | ± 5 % | ||||
Thickness <0.080 | ± 5 % | ± 3 % (Min. ±0.002) | |||||
Substrate thickness | Max. | 1.6 | 2.4 | ||||
Min. | 0.5 | 0.3 | |||||
Tolerance | ±7%(min± 0.075) | ±5%(min ± 0.050) | |||||
Camber | < 0.3% | < 0.2% | |||||
Number of layers | Up to 20 | Up to 30 | |||||
Layer to layer alignment tolerance | ± 0.050 | ± 0.025 | |||||
Max. panel & array size | Max | 55 x 55 | 110 x 110 | ||||
Tolerance | ±0.5%(Min. ±0.200) | ±0.2%(Min. ±0.100) |
1All the dimensions are measured after firing.
2Tape thickness is subject to change with stacked conductors at the adjacent areas.
3Based upon the tape thickness with stacked conductors.