K. Iyogi, K. Yamakawa, K. Koiwa, T. Yasumoto, T. Matsuura, M. Endo, N. Iwase
{"title":"Pin Brazing Technology For A High Performance Aluminum Nitride Package","authors":"K. Iyogi, K. Yamakawa, K. Koiwa, T. Yasumoto, T. Matsuura, M. Endo, N. Iwase","doi":"10.1109/IEMT.1993.639750","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639750","url":null,"abstract":"","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127445005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Umeda, K. Kaminishi, E. Takagi, J. Hanari, A. Tohdake, Y. Shizuki, K. Yoshihara, N. Shigeno, K. Chinen
{"title":"Small-sized 10-gbit/s Optical Transmitter And Receiver Modules Including 8-bit Mux/demux Ics","authors":"T. Umeda, K. Kaminishi, E. Takagi, J. Hanari, A. Tohdake, Y. Shizuki, K. Yoshihara, N. Shigeno, K. Chinen","doi":"10.1109/IEMT.1993.639816","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639816","url":null,"abstract":"High-speed optical data transmitter and receiver modules have been developed. These modules are core parts of the high-speed optical bus link, which will support an environment of highperformance computer networking. These modules have been made an extremely smallsize of 63 x 14.7 x 12 mm and can not only transmit or receive optical 10-Gbit/s signals but also make 8-bit parallel-toserial data conversion, or vice versa. GaAs MESFET ICs of 0.5-pm gates were used in the modules for their ability of over 10-Gbit/s operating and a good yield of them. The structure of packages and substrates are contrived to suppress all unintentional resonances up to around 10 GHz. High-speed signal transmitting and receiving tests for individual modules have shown successful operation at 10 Gbits/s.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127166688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adaptlive Solder Paste Composites Smart Solder Pastes","authors":"C. Val, M. Leroy, H. Boulharts","doi":"10.1109/IEMT.1993.639344","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639344","url":null,"abstract":"111 the ficld of surfacc mounting. thc nicchanical propcrtics of thc soldcr paste alloy pla! n fundan1cnlal rolc. In addition 10 cicctric conncction. the allo? also mcchanicalll sccurcs the component 10 thc interconnection mcdiuni It should also bc noted that Illcoretical approachcs for determining thermomcchanical constraints arc rcali~ed b? assuming that . (1) elastic constants do not v a n uith temperature due to the lack of data on how thesc constants vary with tempcraturc: and (2) thc materials arc assumed to behavc clastically. This I S substantiated bj the fact that solder joints start cracking when subjected to more than 1.000 rapid temperature qclings. This is tmc even when the packages and the substrate have the same mechanical properties (e.g.. ceramic chip carrier on alumina substrate). Moreover. Boeing demonstrated that thc cracking mechanism arose from the cxpansion of the solder in the Z-axis. As a result. France's Ministp of Research and Indusq funded a key study in 1989 covering this topic. In this paper. we present heretofore unpubltshed results on this study. In pan I. thc results obtained from thermomechanical measurements raken in the elastic and plastic domains on two alloys. Sn Pb and Sn Pb Ag. are discussed. In pan 11. the innovative part. focus is on the realization of a solder paste composite composed of a solder paste standard and inclusions such as nickel and nickel-coated graphite Properlies of the new solder composite alloy were measured on standard samples and are reponed here. The process is still not industrialized. Perspectives look good for realizing families of smart solder pastes tailored to specific applications primarily with the use of shape memory alloys (SMA) as inclusions.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127222555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical Waveguide-to-photodiode Coupling Technique Using Total Internal Reflection Mirrors Fabricated In Polyimide Optical Waveguides","authors":"S. Koike, N. Matsuura, H. Takahara","doi":"10.1109/IEMT.1993.639764","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639764","url":null,"abstract":"A novel optical coupling structure from waveguide to flip-chip bonded photodiode is presented by using a total internal reflection (TIR) mirror fabricated in a polyimide waveguide. The TIR mirror was made by using reactive ion etching (RIE) while tilting the substrate at an angle CL to the normal direction of the cathode. Reflection loss was less than 1.5 dB. This mirror can be used for high-efficiency coupling between the waveguide and a flip-chip bonded photodiode in high-speed opto-electronic multichip modules.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131056358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Ando, T. Tomioka, M. Nakazono, K. Atsumi, Y. Tane, J. Nakano, S. Hirata
{"title":"Single Point Outer Mad Bonding Technology For High Pin Count Ceramic PGA","authors":"T. Ando, T. Tomioka, M. Nakazono, K. Atsumi, Y. Tane, J. Nakano, S. Hirata","doi":"10.1109/IEMT.1993.639747","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639747","url":null,"abstract":"A new ceramic pin grid array (PGA) package for industrial computers has been developed by applying tape automated bonding (TAB) technology to one of the largest (20 plpl square) and highest pin count (820pins) application specific integrated circuits (ASIC) available in the semiconductor industry. To fabricate this package, a series of TAB processes containing inner lead bonding (ILB), cutting and forming of TAB outer leads, solder sheet mounting, outer lead bonding (OLB). die attachment and lid sealing have been developed. The key to this assembly is that a single point bonding method at room temperature has been developed for fine pitch (90 pn pitch) interconnections between TAB outer leads and electrode pads on a wavy ceramic substrate. To realize single point TAB technology, the optimum design for a tape carrier and for electrode pad patterns on a ceramic substrate has been explored, a new bonding tool has been developed, and the optimum thickness of gold, plated on the electrode pads on the ceramic substrate, has been investigated. As a result of these investigations, outer lead bond strengths exceeding 30 gf, and bonding accuracy within kt10 p have been achieved. Degradation of bond strength by thermal cycle tests was not observed.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130273593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thin Film Tri-electrode Electroluminescent Display Device And The Effect Of Aging Process On Its Parameters","authors":"Z. Porada","doi":"10.1109/IEMT.1993.639368","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639368","url":null,"abstract":"","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123312113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Package Deformation And Cracking Mechanism Due To Reflow Soldering","authors":"K. Sawada","doi":"10.1109/IEMT.1993.639774","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639774","url":null,"abstract":"Plastic package cracking during reflow sol- dering is an important problem for the reliability of plas- tic encapsulated semiconductor devices. This paper describes a simplified method of package cracking esti- mation obtained by introducing a material property for resin A which is the coefficient between the relative humidity of storage and the saturated moisture content. The consequent process of package expansion during reflow soldering was measured. The individual pro- cesses were fitted by calculation and provided a pre- cise mechanism of package cracking.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116255278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study On High Frequency Permeability Of Magnetic Multilayer Films","authors":"M. Senda, O. Ishii","doi":"10.1109/IEMT.1993.639751","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639751","url":null,"abstract":"This article reports on the material design of low loss and high loss magnetic films for micromagnetic device applications, A multilayer film, composed of soft-magnetic alloy layers and nonmagnetic insulator layers, was adopted as an appropriate material form. The high-frequency magnetic properties were optimized by controlling the thickness of each layer and the magnetic anisotropy with respect to the eddycurrent skin effect, ferromagnetic resonance and dielectric breakdown. A constant relative permeability of 300 in the 1-1000 MHz range and a large common mode noise filtering effect were achieved in optimized low loss and high loss CoZrNb/Si02 films, respectively.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133473286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Syungo Kanai, S. Futagi, M. Kugenuma, M. Takeuchi, A. Kitagawa, M. Suzuki, S. Takenaka
{"title":"Zone-melting Recrystallization Of Si Films By Flat Gas Flame Heating","authors":"Syungo Kanai, S. Futagi, M. Kugenuma, M. Takeuchi, A. Kitagawa, M. Suzuki, S. Takenaka","doi":"10.1109/IEMT.1993.639325","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639325","url":null,"abstract":"","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Matsuoka, M. Kimoto, Yoshifumi Wada, T. Hanamoto, M. Nakamichi, S. Katoh
{"title":"Photointerrupter Using Three-dimensional Molded Plastic Plated With Conductive Wiring","authors":"N. Matsuoka, M. Kimoto, Yoshifumi Wada, T. Hanamoto, M. Nakamichi, S. Katoh","doi":"10.1109/IEMT.1993.639813","DOIUrl":"https://doi.org/10.1109/IEMT.1993.639813","url":null,"abstract":"To achieve miniaturized, surface-mounting optoelectronic components, we have developed a technology of making threedimensional plastic-molded housings plated with wire-bondable metal electrodes. This technology has made it possible to manufacture leadless small components free from conventional problems, such as deformed leadframes and interfacial separation between molded plastic and leads, which would impair the reliability of the components. The fabrication process differs from the one using conventional leadframes in that multiple emitter and detector chips are mounted simultaneously on a three-dimensional framewiring substrate. Therefore, the fabrication process is extremely simple, with minimum fluctuation in the product Characteristics. By applying this technique to reflective type photointenupters, we have successfully reduced the mounting surface area to 65% of that by the conventional design, and achieved a higher light utilization efficiency.","PeriodicalId":170695,"journal":{"name":"Proceedings of Japan International Electronic Manufacturing Technology Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128677445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}