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BS 3934-1:1992

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Mechanical standardization of semiconductor devices Recommendations for the preparation of drawings of semiconductor devices
Available format(s)

Hardcopy , PDF

Superseded date

31-07-2007

Language(s)

English

Published date

01-04-1992

Committees responsible
Foreword
Recommendations
Scope
Object
Section one. General rules for all drawings
1.1 Drawing layout
1.2 Dimensions and tolerances
1.3 Inter-conversion of inch and millimetre dimensions
     and rules for rounding off
Section two. Additional rules for device and case outline
drawings
Section three. Additional rules for base drawings
3.1 General rules
3.2 Numbering of terminals
3.3 Methods for locating the datum line
Section four. Additional rules for gauge drawings
4.1 Gauging information
4.2 Reference letter symbols
Section five. Rules for coding
5.1 Device outlines
5.2 Bases
5.3 Case outlines
Appendices
A. Definitions
B. Reference letter symbols
C. Examples of semiconductor device drawings
D. Conversion of toleranced dimensions from inches into
    millimetres and vice versa (extract of ISO
    Recommendation R 370)
E. Standardization philosophy
F. Designation of metric screw threads (extract from
    Recommendation ISO/R261
G. General philosophy of flat base devices
H. Rules to specify the dimensions and the positions of
    the terminals on a base drawing

Preparation of drawings to indicate the space which should be allowed for devices in equipment together with other dimensional characteristics required to ensure mechanical interchangeability.

Committee
EPL/47
DevelopmentNote
Supersedes BS 3934(1965). (10/2002) Supersedes BS 3934:ADD5(1983) (07/2004)
DocumentType
Standard
Pages
40
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

BS IEC 60747-10:1991 Semiconductor devices Generic specification for discrete devices and integrated circuits
BS QC 390000:1992 Harmonized system of quality assessment for electronic components. Fixed film resistor networks for use in electronic equipment. Generic specification
BS QC 720100:1991 Harmonized system of quality assessment for electronic components. Semiconductor devices. Sectional specification for optoelectronic devices
BS QC700000(1991) : 1991 HARMONIZED SYSTEM OF QUALITY ASSESSMENT FOR ELECTRIC COMPONENTS - GENERIC SPECIFICATION FOR DISCRETE DEVICES AND INTEGRATED CIRCUITS
BS 3934-6:1992 Mechanical standardization of semiconductor devices Specification for the preparation of outline drawings of surface mounted semiconductor device packages

BS 3643-1:1981 ISO metric screw threads Principles and basic data
BS 1580-3:1965 Specification for Unified screw threads Diameters below ¼ in
IEC 60191-2:2012 DB Mechanical standardization of semiconductor devices - Part 2: Dimensions
ISO 261:1998 ISO general purpose metric screw threads General plan
BS 1580-1&2(1962) : 1962 SPECIFICATION FOR UNIFIED SCREW THREADS - DIAMETERS 1/4 INCH AND LARGER
ISO 370:1975 Toleranced dimensions Conversion from inches into millimetres and vice versa
BS 3934-2(1992) : 1992 AMD 13374 MECHANICAL STANDARDIZATION OF SEMICONDUCTOR DEVICES - SCHEDULE OF INTERNATIONAL DRAWINGS GIVING DIMENSIONS
ISO 263:1973 ISO inch screw threads General plan and selection for screws, bolts and nuts Diameter range 0,06 to 6 in

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