1、 INTERNATIONAL STANDARD IEC60191-1 Second edition2007-04 Mechanical standardization of semiconductor devices Part 1:General rules for the preparation of outline drawings of discrete devices Reference number IEC 60191-1:2007(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATI
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8、ail:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC60191-1 Second edition2007-04 Mechanical standardization of semiconductor devices Part 1:General rules f
9、or the preparation of outline drawings of discrete devices W For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.
10、2 60191-1 IEC:2007(E)CONTENTS FOREWORD.4 1 Scope and object.6 2 Normative references.6 3 Terms and definitions.6 4 General rules for all drawings.8 4.1 Drawing layout.8 4.2 Dimensions and tolerances.8 4.3 Methods for locating the datum.10 4.4 Numbering of terminals.10 5 Additional rules.12 5.1 Rules
11、 for device and case outline drawings.12 5.2 Rules to specify the dimensions and positions of terminals.12 5.3 Rules for gauge drawings.13 6 Inter-conversion of inch and millimetre dimensions and rules for rounding off.13 7 Rules for coding.14 Annex A(informative)Reference letter symbols.15 Annex B(
12、normative)Standardization philosophy.18 Annex C(informative)Rules to specify the dimensions and positions of terminals on a base drawing.23 Annex D(normative)General philosophy of flat base devices.30 Annex E(informative)Examples of semiconductor device drawing.32 Annex F(informative)Former rules fo
13、r rounding off.36 Annex G(informative)Former rules for coding.38 Bibliography.39 Figure 1 Numbering of terminals of lozenge shaped bases.11 Figure 2 System to indicate the dimensions of the terminals.13 Figure B.1 Example of rigid lug device.21 Figure B.2 Example of flexible terminal device.22 Figur
14、e C.1 Circular base outline with no tab.27 Figure C.2 Tolerances of terminals.27 Figure C.3 Gauge for a circular base outline with no tab.28 Figure C.4 Circular base outline with tab.29 Figure C.5 Gauge for a circular base outline with tab.29 Figure D.1 Example of flat base outline.31 Figure E.1 Lon
15、g form package.32 Figure E.2 3 types of post/stud mount packages.32 Figure E.3 2 types of cylindric packages.33 Figure E.4 Oval package,terminals in line.34 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.60191-1 IEC:2007(E)3 Figure E.
16、5 Cylindric package with different terminations.34 Figure E.6 Flange mount package.34 Figure E.7 Disk button package with 3 terminations.35 Figure E.8 Special shape for bolt-fixture.35 Table A.1 Dimensions of reference letter symbols.15 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.4 60191-1 IEC:2007(E)INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MECHANICAL STANDARDIZATION OF SEMICONDUCTOR DEVICES Part 1:General rules for the prep
