Patent SG-11201709029Q-A (SG)
Title: System and Method for Lead Foot Angle Inspection Using Multiview Stereo Vision
Inventor: TANG HAK WEE
IPC: G01N21/84
Filed: 2017-05-02
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT 01E1°1°1a °nolo III 010 01110l Elm im iflo oimIE (10) International Publication Number WO 2018/203824 Al (51) International Patent Classification: GO1B 11/26 (2006.01) GO1N 21/84 (2006.01) (21) International Application Number: PCT/SG2017/050232 (22) International Filing Date: 02 May 2017 (02.05.2017) (25) Filing Language: English (26) Publication Language: English (71) Applicant: GENERIC POWER PTE LTD [SG/SG]; Blk 5004 Ang Mo Kio Ave 5, #03-12 TECHplace II, Singapore 569872 (SG). (72) Inventors: TANG, Hak Wee; 503 Sembawang Road, #03-27, Singapore 757707 (SG). CAO, Ruini; Blk. 368, Corporation Drive, #09-469, Singapore 610368 (SG). LIM, Kok Yeow; 130 Hillview Avenue, #08-01, Singapore 669596 (SG). THANT, Zin Oo; Blk. 548, Ang Mo Kio Av- enue 10, #03-2016, Singapore 560548 (SG). (74) Agent: NG, Kim Tean; NANYANG LAW LLC, P.O. Box 1861, Robinson Road Post Office, Singapore 903711 (SG). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 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, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, 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, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) with amended claims (Art. 19(1)) (54) Title: SYSTEM AND METHOD FOR LEAD FOOT ANGLE INSPECTION USING MULTIVIEW STEREO VISION (57) : The present invention includes a system and method for three-dimensional imaging and analysis of electronic components. Specifi- cally, it permits rapid and reliable inspection of the lead foot angle in inte- 30 grated circuit packages. A first image capturing device, a second image cap- turing device and a third image capturing device are arranged in a \"corner shape\" or \"L-shape.\" The first image capturing device forms the corner and 40 A 40 obtains an image of the bottom of the component. The perspective viewing angle of the second image capturing device and the perspective viewing an- gle of the third image capturing device are orthogonal to each other to allow accurate three-dimensional reconstruction of the lead angles and detection 63 of flaws or bends. 73 W O 20 18/ 2038 24 Al St: 83 81 FIGURE 1