Patent SG-11201900434P-A (SG)
Title: Saw-based electronic elements and filter devices
Inventor: ANDO YOSHIAKI
IPC: H03H9/10
Filed: 2017-07-18
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1#1101111 0 11101 HOE HI 1 0 0111111 OH 100 1111100 1111 11110 MAMIE Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\"1 WO 2018/016467 Al 25 January 2018 (25.01.2018) WIP0 I PCT (51) International Patent Classification: (74) Agent: MIYOSHI Hidekazu et al.; Toranomon Kotohi- HO3H 9/10 (2006.01) HO3H 9/02 (2006.01) ra Tower, 2-8, Toranomon 1-chome, Minato-ku, Tokyo, HO3H 9/05 (2006.01) 1050001 (JP). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/JP2017/025889 kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 18 July 2017 (18.07.2017) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (26) Publication Language: English KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (30) Priority Data: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 62/363655 18 July 2016 (18.07.2016) US SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 62/510035 23 May 2017 (23.05.2017) US TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: SKYWORKS FILTER SOLUTIONS (84) Designated States (unless otherwise indicated, for every JAPAN CO., LTD. [JP/JP]; 1006, Oaza Kadoma, Kado- kind of regional protection available): ARIPO (BW, GH, ma-shi, Osaka, 5710050 (JP). GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (72) Inventors: ANDO Yoshiaki; 1006, Oaza Kadoma, Kado TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, — ma-shi, Osaka, 5710050 (JP). NIWA Satoshi; 1006, Oaza EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Kadoma, Kadoma-shi, Osaka, 5710050 (JP). NAKAMU- MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, = RA Hiroyuki; 1006, Oaza Kadoma, Kadoma-shi, Osaka, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 5710050 (JP). KM, ML, MR, NE, SN, TD, TG). = (54) Title: SAW-BASED ELECTRONIC ELEMENTS AND FILTER DEVICES = = (57) : Aspects and examples provide electronic elements and filter 200 1 241270 245 devices deterioration = \ _ r.N. configured to prevent of the propagation characteris- 231 1 11111 ., 235 \ ' I b NI si 255 tics caused by input and output signals being electromagnetically coupled to an electric conductor side wall. In one example an electronic filter (200) in- = f - - = 1 NI g LI 11 4 dudes an element substrate (210) having a top surface (210a), a bottom sur- T face (210b), a side surface (210b), and piezoelectric body. A circuit includ- - L = 232 ik il I N / -211p 6 , 3 / kl i 2601- ing a plurality of SAW resonators (231 - 273) is formed on the top surface of the element substrate. The electronic filter further includes a sealing sub- 256 256 240 240 I M I •il ii strate (220) having a top surface (220a) and a bottom surface (220b), and a = = side wall (270) including an electric conductor and formed to define a cavity mamil 246 between the top surface of the element substrate and the bottom surface of the 233ill = PO — = 237 N L Ill II ii LI ' . 234 sealing substrate, the side wall enclosing a periphery of the circuit and being I 254 connected to a ground potential of the circuit. = I ' -' 0, 210c kk N \\W MI I \ 257 247 210 270 FIG.3A 244 1-1 200 Ir---- ,.. 281 ,-220c 220a 265 220c ,,,,,, 231 235 , x , , 71' P i 111111EMENIII 220 P I i_ 251 146 MON 210a ...ME 255 _ 2 270 11 Er ITRIV1 270 © \ 1111=1111111 210 210c 241 245 210b 260 1-1 FIG.313 0 ei O [Continued on next page] WO 2018/016467 Al D ill Published: — with international search report (Art. 21(3))