ASTM F375-1989(2010) Standard Specification for Integrated Circuit Lead Frame Material《集成电路引线框材料标准规范》.pdf
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1、Designation: F375 89 (Reapproved 2010)Standard Specification forIntegrated Circuit Lead Frame Material1This standard is issued under the fixed designation F375; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the special requirements formetal strip to be used to fabricate integrated-circuit lead framesby stamp
3、ing or photochemical milling.1.2 The metals that are applicable to these parts includecopper and copper alloys, ferrous alloys usually containingnickel or cobalt or chromium, nickel and nickel alloys, andother metallic materials.1.3 The general chemical, physical, and mechanical prop-erty requiremen
4、ts of these materials are covered by otherASTM specifications (specifically Specifications B103/B103M, B122/B122M, B152/B152M, B162, B465, F15, F30,F31, F49 and F68), and these should be consulted for proper-ties and tempers that are different for the different metals. Formetals for which no ASTM sp
5、ecification is available, otherspecifications should be adopted by agreement of the partiesconcerned.1.4 TThe values stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not con
6、sidered standard.2. Referenced Documents2.1 ASTM Standards:2B103/B103M Specification for Phosphor Bronze Plate,Sheet, Strip, and Rolled BarB122/B122M Specification for Copper-Nickel-Tin Alloy,Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled BarB152/B1
7、52M Specification for Copper Sheet, Strip, Plate,and Rolled BarB162 Specification for Nickel Plate, Sheet, and StripB465 Specification for Copper-Iron Alloy Plate, Sheet,Strip, and Rolled BarE112 Test Methods for Determining Average Grain SizeF15 Specification for Iron-Nickel-Cobalt Sealing AlloyF30
8、 Specification for Iron-Nickel Sealing AlloysF31 Specification for 42 % Nickel-6 % Chromium-IronSealing AlloyF49 Specification for Molybdenum Strip for Electron TubesF68 Specification for Oxygen-Free Copper in WroughtForms for Electron Devices3. Ordering Information3.1 Orders for material under this
9、 specification shall includethe following information:3.1.1 Quantity of each size,3.1.2 Material and specification number appropriate to thematerial (see 2.1),3.1.3 Temper or mechanical properties (see 4.1),3.1.4 Dimensions: thickness, width, length if applicable (see6.2-6.4),3.1.5 How furnished: co
10、ils and coil size or lengths (see10.1),3.1.6 ASTM designation, referencing this specificationnumber, and the fabricating process to be used,3.1.7 Certification or test report requirements (see 11.1), and3.1.8 Packing and marking requirements (see 12.1 and12.2).4. Materials and Manufacture4.1 The mat
11、erials covered by this specification shall con-form to the chemical, physical, and mechanical propertyrequirements prescribed in the material specification coveringthe metal or alloy and the temper (see 2.1).4.2 The material shall conform to the requirements for leadframes as prescribed in this spec
12、ification and shall be charac-teristically suitable for fabrication into lead frames by the1This specification is under the jurisdiction of ASTM Committee F01 onElectronics and is the direct responsibility of Subcommittee F01.03 on MetallicMaterials.Current edition approved Oct. 1, 2010. Published N
13、ovember 2010. Originallyapproved in 1973 as F375 73 T. Last previous edition approved in 2005 asF375 89 (2005). DOI: 10.1520/F0375-89R10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume i
14、nformation, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.fabricating process to be specified. Any special requirementsrelating to the material properties or the fabri
15、cating process, tobe specified by the user, shall be agreed upon between thesupplier and purchaser.5. Chemical Composition5.1 The material shall conform to the requirements as tochemical composition specified for flat products in the ASTMspecification for the metal or alloy specified, unless otherwi
16、seagreed upon between supplier and purchaser.6. Dimensions and Tolerances6.1 GeneralFor the purposes of determining conformancewith the dimensional requirements prescribed in this specifi-cation, any measured value outside the specified limitingvalues for any dimension shall be cause for rejection.6
17、.2 ThicknessThe thickness tolerances shall be thoseshown in Table 1.6.3 WidthThe width of material shall conform to toler-ances shown in Table 2.6.4 LengthThe length tolerances shall be those shown inthe appropriate table for flat products in the ASTM specifica-tion covering the metal or alloy.6.5 S
18、traightnessThe maximum edgewise curvature (cam-ber) in any 96-in. (2.44-m) length shall be that shown in Table3.6.5.1 Test MethodCut a length greater than 96 in. (2.44m), representative of the material, and lay it on a flat surface.Place an 8-ft long straightedge against the concave edge of thestrip
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