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hasl





Encyclopedia results for hasl

  1. HASL

    HASL or Hot Air Solder Leveling is a type of finish used on printed circuit board s PCB . Description The PCB is typically dipped into a bath of molten solder such that all exposed copper surfaces are covered by solder. Excess solder is removed by scraping the PCB with hot air knives. The HASL process consists of a pre clean, fluxing, hot air leveling, and a post clean. Pre cleaning is usually done with a micro etch. However, the usual persulfate or peroxide micro etch is not common in the process. Dilute ferric chloride or a hydrochloric based chemistry is favored for compatibility with the fluxes that are applied in the next step. Fluxes perform the following functions Provide oxidation protection to the pre cleaned surface. Affect heat transfer during solder immersion. Provide oxidation protection during HASL. Higher viscosity fluxes provide better oxidation protection and more uniform solder leveling, but reduce overall heat transfer and require a longer dwell time or higher temperature. A balance in flux use must be struck between better protection with high viscosity fluxes and superior heat transfer with lower viscosity fluxes ref. 38 . Hot air level machines consist of a transport mechanism that carries the panel into a reservoir of molten solder 460 F, 237 C , then rapidly past jets of hot air. All areas of exposed copper are coated with solder and masked areas remain solder free. Boards are then cleaned in hot water, the only step in the SMOBC process where lead may enter the wastewater stream, albeit in very small quantities. Once cleaned, the panels may again enter the screening area for optional nomenclature screening, or proceed directly to the routing process. Copper, flux and other impurities build in concentration in the solder pot as panels are processed ... and is sent off site for treatment. Advantages of HASL Excellent wetting during component soldering Disadvantages of HASL Low planarity makes this surface finish unsuitable for use with fine pitch ...   more details



  1. Electroless nickel immersion gold

    Electroless nickel immersion gold ENIG is a type of surface plating used for printed circuit board s. It consists of an electroless nickel plating covered with a thin layer of immersion gold , which protects the nickel from oxidation. ENIG has several advantages over more conventional and cheaper surface platings such as HASL solder , including excellent surface planarity particularly helpful for PCB s with large Ball grid array BGA packages , good oxidation resistance, and usability for untreated contact surfaces such as membrane switch es and contact points. Early ENIG processes suffered from reliability issues which caused the ENIG finish to separate from the copper pads, taking the parts with them. ENIG also does not wet as evenly or easily as HASL. IPC electronics IPC Standard IPC 4552 covers the quality and other aspects of ENIG finish on printed circuit boards. Category Electronics manufacturing Category Metal plating metalworking stub ...   more details



  1. IAg

    Cleanup date November 2009 IAg or Immersion Silver Plating is a surface plating technology used for Printed circuit board Printed Circuit Boards . Description It consists of a thin immersion silver plating over the copper traces. Advantages of IAg Excellent surface planarity compared to e.g. HASL Low High Frequency Signal loss due to skin effect Disadvantages of IAg Rapid degradation of surface due to oxidation or contamination with e.g. sulfur or chlorine Specifications IPC electronics IPC Standard IPC 4553 DEFAULTSORT Iag Category Electronics manufacturing ...   more details



  1. 1989 National Challenge Cup

    Eagles RD2 score03 0 RD2 seed04 BSSL RD2 team04 St.Louis Michelob RD2 score04 0 RD2 seed05 HASL RD2 ... Chicago Eagles RD3 score02 1 RD3 seed03 HASL RD3 team03 Greek American AA NY Greek AA RD3 score03 ... RD4 score01 2 RD4 seed02 HASL RD4 team02 Greek American AA NY Greek AA RD4 score02 1 Final footballbox ... 8494 1989 236438.html Report team2 Greek American AA NY Greek AA HASL goals1 Garth Pollonais ...   more details



  1. Historical Advanced Squad Leader module

    Unreferenced date December 2009 Context date October 2009 HASL modules Historical Advanced Squad Leader modules HASL modules are addons for the tactical wargames tactical wargaming wargame Advanced Squad Leader intended to depict actual historical events using maps produced from actual terrain maps, and featuring linked scenarios called Campaign Games . All other equipment from ASL is necessary for play, including unit and system counters, dice, the Advanced Squad Leader ASL rulebook ASL Rulebook and in the case of the Historical Studies, the geomorphic mapboards. In addition, some extra equipment is included in most HASL Modules, such as extra copies of commonly used counters in order to prevent shortages of vehicle or infantry types, as well as module specific informational markers. Finally, each module contains its own rulebook chapter pages or pages for just part of a chapter, in cases where multiple HASL modules share the same rulebook chapter , which give rules for module specific terrain and units, as well as campaign game rules, and a black and white miniature of the historical .... The rules chapter for this HASL Module includes rules for Pine Woods, Slope hexsides, and barbed ... maps released with the Advanced Squad Leader Modules Core modules core modules . This HASL ... include, as is common for HASL modules, several new terrain types. In VotG, this includes burned ... 2008. HASL periodical releases There have also been Historical Advanced Squad Leader offerings not in Module ... Tanambogo HASL feature with rules, scenarios, campaign games, and historical map insert. The module ... to be represented in their entirety in ASL format for this feature. This HASL module does not include ... Annual 93b issue. The Road To Nhpum Ga ASL Annual 97 includes a mini HASL game which consists ... a full sized HASL map, scenarios, counters and articles. This module depicts fighting on Okinawa in 1945 . Primosole Bridge ASL Journal 6, released in 2005, offers a Primosole Bridge HASL feature ...   more details



  1. Ellingen

    Infobox German Location type Stadt Wappen Wappen Ellingen.svg lat deg 49 lat min 01 lon deg 10 lon min 58 Lageplan Ellingen in WUG.svg Bundesland Bayern Regierungsbezirk Mittelfranken Landkreis Wei enburg Gunzenhausen Verwaltungsgemeinschaft Ellingen H he 394 461 Fl che 31.25 PLZ 91792 PLZ alt 8836 Vorwahl 09141 Kfz WUG Gemeindeschl ssel 09 5 77 125 Gliederung 7 Ortsteil e Stra e Wei enburger Str. 1 Website http www.ellingen.de www.ellingen.de B rgermeister Walter Hasl Partei SPD File Ellingen Bayern Rathaus.jpg thumb townhall Ellingen is a Town Germany town in the Wei enburg Gunzenhausen district, in Bavaria , Germany . Cities and towns in Wei enburg Gunzenhausen district References Reflist Category Wei enburg Gunzenhausen Wei enburgGunzenhausen geo stub de Ellingen eo Ellingen fa fr Ellingen id Ellingen it Ellingen lmo Ellingen nl Ellingen pnb pl Ellingen ro Ellingen ru sr vi Ellingen vo Ellingen war Ellingen ...   more details



  1. Environmental Measurements Laboratory

    HASL . Fallout from nuclear weapons test s became a major concern and the lab s focus later shifted ... Research and Development Administration US Department of Energy 1975 2003 The HASL Procedures Manual ...   more details



  1. Kurentovanje

    cultural historian Drago Hasl 1900 1976 . Hasl, indefatigable organiser of Kurentovanje from its beginnings .... In 1959, Hasl, strongly backed by those who shared both his views and enthusiasm for the event ... and Kurentovanje was born. Hasl also prepared a draft regarding the content and outlining the major ...   more details



  1. Harald Bjarne Slettebų

    BLP sources date August 2010 Harald Bjarne Sletteb born 1 April 1922 in Egersund is a Norwegian school worker and politician Fremskrittspartiet . Sletteb received his Academic degree cand.real. from the University of Oslo in 1946. He worked as a teacher in Stavanger and Haugesund , and in 1959 he became rektor of Stord gymnas , a position he held until 1989. He still lives in Stord . In 1973, Sletteb was elected to the Stortinget for Progress Party Norway Anders Langes Parti in Hordaland . ref cite web url http www.stortinget.no no Representanter og komiteer Representantene Representantfordeling Representant ?perid HASL title Biografi Sletteb , Harald Bjarne publisher stortinget.no language Norwegian accessdate 4 August 2010 ref He sat for one term, and was a member of the Justice committee . In 1976 77, he was also parliamentary leader , after the party changed its name to Fremskrittspartiet. He later sat on Stord city council from 1979 to 1983 and on Hordaland county council and fylkesutvalg from 1983 to 1987. References Reflist Use dmy dates date August 2010 Persondata Metadata see Wikipedia Persondata . NAME Slettbo, Harald Bjarne ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1 April 1922 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Slettbo, Harald Bjarne Category People from Egersund Category 1922 births Category Living people Category Members of the Parliament of Norway Category Progress Party Norway politicians no Harald Sletteb ...   more details



  1. Ellington Electronics Technology Group

    orphan date October 2010 barelinks date May 2011 Infobox Company company name Ellington Electronics Technology Group company logo company type Private company Private foundation 2000, Hong Kong location Zhongshan City , Guangdong Province , People s Republic of China industry Electronics products Printed Circuit Board s revenue 277 million United States dollar USD FY 2008 revenue 305 million United States dollar USD FY 2009 revenue 400 million United States dollar USD FY 2010 num employees 9,000 2011 homepage http www.ellingtonpcb.com EllingtonPCB.com Ellington Electronics Technology Group or Ellington PCB is one of the leading Printed Circuit Board PCB manufacturers in China . It is a Hong Kong based company which is privately owned. In Year 2008, the company was ranked 8th in China ref http news.pcbcity.com.cn PcbInfo Articles 2010 6 1006131648131748 1.htm ref and 43rd in the world ref http www.cnbxfc.net web 066.php?to url 2&id &url id 40869 ref . Ellington PCB is aiming to become listed on the Shanghai Stock Exchange in Q4 2011. History abbreviations section date December 2011 Ellington was founded in March, 2000 by a group of PCB experts, specializing in 2 to 12 Layers PCB manufacturing with in house surface finishing of OSP dn date December 2011 , Lead free HASL , Immersion Gold Silver Tin . It manufactures for over 400 customers worldwide. Ellington s world ranking jumped from 88 in 2005 to 43 in 2008. The company is growing rapidly with CAGR of 28.5 in 5 years. Operations The company s headquarters and production facility are located in Zhongshan City , Guangdong Province , China . The 4 storey manufacturing plant has a total area of 2,600,000 ft2. Ellington PCB is ISO 9002 , ISO 14001 , OHSAS 18001 and ISO TS16949 certified. After the completion of its 3rd stage capacity expansion , the company currently generates an output of 4,200,000 ft2 390,600 m2 per month and currently employs more than 9,000 people. Ellington also have a logistic facility and adminis ...   more details



  1. Saturnalia (webcomic)

    Ricoh and Aficio a pair of HASL members who have infiltrated an android manufacturing facility, where they HASL have been sabotaging androids by contaminating their brains in a way that causes ... woman alone to talk. She offers Sysreq a job with HASL, and explains their motives. Sysreq ... group that works for H.A.S.L. Humans Against Synthetic Life , the arch enemies of PACER. Her ... childish rivalry between her and Nine. Ricoh and Aficio Two HASL members who had infiltrated ...   more details



  1. Bead probe technology

    HASL Hot Air Solder Levelling HASL finish. References Reflist 2 Refbegin Refend Implementation ...   more details



  1. Advanced Squad Leader

    ASL HASL , which used historically accurate map s, usually in a military campaign campaign setting ... Squad Leader Historical ASL HASL modules did not have associated Chapter N pages, and neither ... small small Chapter O small small font font face MS Sans Serif small small Red Barricades HASL small ... Bridge HASL Module Day 7 and ASL Journal 2 Day 8 . All Historical ASL Module rules associated ... Advanced Squad Leader module s, or HASL, feature maps based on actual terrain as well as historical ... over historical objectives. MMP took over production of HASL with A Bridge Too Far, and also released ... terrain maps. HASL modules 1 Historical Advanced Squad Leader module Red Barricades Red Barricades ...   more details



  1. Tribal Streetwear

    homeboys Hasl, Brisk or Pursue, the Tribal warehouse where the artwork now provides a good example ...   more details



  1. Thomas Jefferson School of Law

    Infobox Law School image name Thomas Jefferson School of Law established 1969 type Private university Private , Non profit head Rudolph Hasl city San Diego, California San Diego state California CA country United States US students 650 Full time 240 Part time approx. ref name ABA Official Data faculty 103 Full time and adjunct ref name USNWR ranking Rank not published ref name USNWR Cite web title U.S. News & World Report , Best Law Schools Thomas Jefferson School of Law url http grad schools.usnews.rankingsandreviews.com best graduate schools top law schools thomas jefferson school of law 03181 accessdate April 14, 2011 ref bar pass rate 48 ABA profile annual tuition Full time 38,700 br Part time 27,000 ref name USNWR homepage http www.tjsl.edu Thomas Jefferson School of Law aba profile http officialguide.lsac.org Release SchoolsABAData SchoolPage SchoolPage PDFs ABA LawSchoolData ABA4973.pdf Thomas Jefferson School of Law Thomas Jefferson School of Law , or TJSL , is an independent Law school in the United States law school in San Diego, California . It offers a Juris Doctor , and three Master of Laws programs, including one that is exclusively online, ref name onlinellm How to enroll in America s first LLM Program . http llmprogram.org. ref as well as a combined J.D. M.B.A. with San Diego State University . Its law program is accredited by the American Bar Association Accreditation of law schools American Bar Association ABA . History The Thomas Jefferson School of Law was originally founded in 1969 as the San Diego campus of the for profit Western State University College of Law and operated as such until 1995. It became independent in 1995 and received provisional accreditation from the ABA in 1996. ref cite web url http www.americanbar.org groups legal education resources aba approved law schools by year approved.html title ABA Approved Law Schools by Year work ABA website accessdate April 20, 2011 ref It was given full ABA accreditation in 2001 ref http offic ...   more details



  1. Advanced Squad Leader Modules

    deleted the Finnish counter mix but added the HASL Module Battle of Stalingrad Red Barricades . The scenarios ... out of print Red Barricades HASL module, including two mapsheets, informational counters, and rulebook ...   more details



  1. Printed circuit board

    , any exposed copper was coated with solder by hot air solder levelling HASL . The HASL ...   more details



  1. Solder

    Solder Sn63PbP ref Pb yes Sn63PbP . A special alloy for HASL machines. Addition of phosphorus reduces ...   more details




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