The System Design of SiP for mm-wave application

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2 The System Design of SiP for mm-wave application October 217 Murata Manufacturing Co., Ltd. Ryuken Mizunuma 2 2 October 217 2

3 Agenda 1. mm-wave application 2. Core technology for mm-wave SIP modules Antenna design technology Low loss material technology Antenna integrated packaging technology mm-wave evaluation technology 3. Summary 3

4 Profile Date of Establishment October 1944 Date of Incorporation December 23, 195 Net Sales 1,135,524 million JPY* Number of Subsidiaries 97** (31 in Japan, 66 overseas) Number of Employees 59,985* * as of March 31, 217 **Murata Manufacturing Co., Ltd. Is not included in the number of subsidiaries 4

5 Global Market Shares* 4% 35% 5% 4% Chip monolithic ceramic capacitors EMI suppression filters (EMIFIL ) Surface acoustic wave filters Multilayer LC filters (filters, couplers, baluns, etc.) 55% 95% 75% 3% Connectivity modules Shock sensors Ceramic resonators High frequency inductors *Global market shares based on Murata's presumption. Share changes according to market or application. 5

6 Sales by Application (Billion JPY) 1,3 1,2 1,1 1, % 4% 4% 12.9% 5% 5% 6% 56% 54% 7% 1% 51% 2.1% 49% 45% 15% 16% 14% 18% 1.4% 2% 19% 13% 15% 14% 14% 14% 1.7% 15% 15% 12% 9% 11% 9% 1% 11% AV Communication Computers and Peripherals Automotive Home and others - Growth Ratio (forecast) * * as of April 28, 217 6

7 WiGig TM /IEEE 82.11ad 6GHz Wireless Mesh NW Wireless Backhaul Wireless Desktop in Office Game & Entertainment at Home Wireless Presentation at Meeting Room Wireless Server NW Virtual Reality 7

8 5G NR mm-wave 28GHz/39GHz Automotive Cellar IoT/IoE <1msec Radio latency Ultra reliability >1Gbps Peak date rate Cloud 5G 5G 5G >1Gbps Peak date rate 1 Mbps Wherever needed 1 more traffic BLE Wi-Fi etc 5G? 1 years Ultra low cost 1-1 more device AP BLE Wi-Fi etc 8

9 mm-wave propagation loss Loss = 4πd λ 2 Loss[dB] Frequency[GHz] Loss:1m[dB] Loss:1km[dB] Loss:3km[dB] Loss : Propagation loss d: Distance [m] λ : Wave length [m] Distance 1m@28GHz 125mm@2.4GHz 1 dbi, 4ANT. 125mm@28.5GHz 32 dbi, 564ANT. High Antenna Gain with array antenna can be used to compensate for propagation loss 9

10 Challenge for mm-wave RF module 1) mm-wave array antenna design 2) Low loss material 3) Antenna integrated packaging 4) mm-wave evaluation technology 1

11 Challenge for mm-wave RF module mm-wave Phased Array Antenna Design Beam Steering Patterns Meas.(deg.) Simulated Peak Shift deg. -9deg. H Plane E Plane mm-wave Evaluation (Module Level) p ( ) Beam Pattern Angle (deg.) +9deg. Anechoic Chambers (Dedicated to mm-wave) Mm-Wave Beam Forming Sim. HFSS EXP. Meas RF Module for Robust Link Z Top Bottom Packaging Technology Antenna integrated packaging for mm-wave Y X mm-wave Antennas Printed mm-wave Antennas - Small (< 1 X1 mm) - Thin ( 1mm) - Surface Mount Device mm-wave Evaluation (System Level) Y Receiver DUT with 3D Turn Table 3m Module inside Chassis (Smartphone, Tablet, PC, ) Mm-Wave Beam Throughput Simulation Example (In Room) 3D Measurement of Radiation 11

12 Array antenna design technology Patch Array V-pol (Azimuth) Patch Array H-pol (Azimuth) Antenna Gain Azimuth Mobile module Prototype Endfire Array-R +9 Eva. board Connector Endfire Array-L (Azimuth, V-pol) Meas. Sim Endfire Array-R (Azimuth, V-pol) V-pol H-pol Endfire Array-L Patch Array Peripheral Components Simulation with Eva.board and some peripheral components Meas. Sim

13 Array antenna design technology H Plane E Plane Amplitude (db) Angle (deg.) Cal. Amplitude (db) Angle (deg.) Cal. Antenna beam coverage; E Plane:±6deg -4.5dB H Plane:±6deg -7dB deg. -9deg. H Plane +9deg. E Plane +9deg. -9deg. 13

14 Influence to array antenna from housing Patch antenna (V polarization) Gain Loss (d: changed) 6.48 GHz Patch antenna w/o case; db -6 E plane V polarization Distance d (mm) Antenna Antenna Gain gain Variation loss (db) t=.5 mm t=1. mm Plastic Case Radiation pattern (E plane) GHz, t=.5mm Patch antenna ε r =2.9 d t Antenna gain (dbi) w/o case d=.mm d=1.5mm d=3.mm d=4.5mm RF module Angle θ (deg.) 14

15 Low loss transmission line Substrate materials and their characteristics FR4 FR4+ FR5 Teflon LTCC MetroCirc TM Dielectric constant(εr) Dielectric tangent (Tanδ) Simulation Loss / 1mm [db] Measurement Loss/1 mm[db] * Cost Low Mid/low Mid High Mid Mid Loss: Strip line *1GHz 15

16 LTCC vs PCB Insertion Loss skin depth Insertion Loss [db/1mm] dB Frequency [GHz] Sim./LTCC Meas./LTCC Sim./FR4+ Meas./FR4+ 1.5dB Skin depth[um] Frequency[GHz] LTCC is suitable for mm-wave transmission line d ρ = 2 ω µ d: Skin Depth[m] ρ: Electrical resistivity[ωm] ω:2π Frequency[rad/s] μ: Relative permeability[h/m] 16

17 Antenna module by 3D structure Array Antenna LTCC Resin SDO RFIC SDI SCLK LE PWR_DN VBATT_3V3 VDD1V8 SPI Slave Interface Command Interpreter/ Control Logic GAIN PHASE Data Director CHAN 1 PHASE CHAN 2 PHASE CHAN 3 PHASE Φ ANT1 Top view GND Memory Registers 4x4 READ/WRITE REGISTER DATA CHAN 4 PHASE Φ ANT2 Combiner Φ ANT3 IF_TX IF_RX RFFE IC Φ ANT4 RFIC LO Miniaturized module consists of the shortest length connections Bottom view 17

18 Microwave module vs mm-wave module Substrate Regin mm-wave Antenna Substrate Bottom Top Bottom Microwave module structure mm-wave module structure RF I/O port w/o antenna Conductive measurement Small influence from housing Can use existing substrate Core technology Small and high performance RF device High frequency circuit design Small and thin package Integrated array antenna OTA measurement Big influence from housing Low loss substrate Core technology mm-wave material Array antenna design Antenna integrated package mm-wave evaluation 18

19 Thermal design Antenna Module Antenna substrate (LTCC) Mother board 13 Thermal simulation result >2 degrees w/o Thermal dissipation block w/ Thermal dissipation block 8 Tb Tsi Tj Tc 19

20 OTA measurement system mm-wave Anechoic Chamber for 3.m measuring distance Rx antenna 6GHz DUT 3D turn table 3D Measurement of 6GHz Beam Pattern 6GHz Beam Anechoic Chamber for 1.m measuring distance Wide Range Radiation Measurement Field Strength(dBuV/m) 2

21 Summary SIP module of mm-wave needs special technology Antenna design technology Best material of substrate Heat radiation design Measurement technology Murata has all of above capabilities as one stop solution! 21

22 Thank you! 22