1、BRITISH STANDARD BSEN 168100:1995 Harmonized system of quality assessment for electronic components Sectional specification: quartz crystal units (Capability approval) The European Standard EN168100:1993 has the status of a British StandardBSEN168100:1995 This British Standard, having been prepared
2、under the directionof the Electrotechnical Sector Board (L/1), was publishedunder the authorityofthe Standards Boardand comes into effect on 15April1995 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference EPL/49 Drafts for comment 89/28710 DC and 91/3032
3、0 DC ISBN 0 580 22475 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee EPL/49, Piezo-electric devices for frequency control and selection, upon which the following bodies were represented: EEA (the Association of Electro
4、nics, Telecommunications and Business Equipment Industries) Electronic Components Industry Federation Institute of Physics Institution of Electrical Engineers Ministry of Defence National Supervising Inspectorate Amendments issued since publication Amd. No. Date CommentsBSEN168100:1995 BSI 11-1999 i
5、 Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 168100 3 List of references Inside back coverBSEN168100:1995 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee EPL/49 and is the English language version
6、of EN168100:1993 Sectional specification: quartz crystal units (Capability approval) (includes Amendments A1 and A2:1993), published by the Electronic Components Committee (CECC) of the European Committee for Electrotechnical Standardization (CENELEC). This standard supersedes BS CECC68100:1991, whi
7、ch is obsolescent and which will be withdrawn before8December2002. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunit
8、y from legal obligations. Cross-references International Standard Corresponding British Standard IEC 68 BS EN 60068 Environmental testing BS 2011 Environmental testing EN 16800 BS CECC 68000:1990 Harmonized system of quality assessment for electronic components. Generic specification: quartz crystal
9、 units CECC 00114 Rule of procedure 14. Quality assessment procedures CECC 00114-1:1993 Part 1:1993 Approval of manufacturers and other organizations CECC 00114-3:1993 Part 3:1993 Capability approval of an electronic component manufacturing activity Summary of pages This document comprises a front c
10、over, an inside front cover, pagesi andii, theEN title page, pages2 to24, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NOR
11、ME EUROPENNE EUROPISCHE NORM EN 168100 February 1993 +A1 and A2 February 1993 Supersedes CECC 68100 Issue1:1989 Descriptors: Quality, electronic components, quartz crystal units English version Sectional specification: quartz crystal units (Capability approval) (includes Amendments A1 and A2:1993) S
12、pcification intrmediaire: Rsonateurs quartz (Agrmente savoir-faire) (inclut les amendments A1 et A2:1993) Rahmenspezifikation: Schwingquarze (Befhigungsanerkennung) (Einschlielich nderungen A1 und A2:1993) This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on14
13、 January1992. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards ma
14、y be obtained on application to the General Secretariat of the CECC or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and
15、 notified to the CECC General Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Swit
16、zerland and UnitedKingdom. The membership of the CECC is identical, with the excpetion of the national electrotechnical committees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr El
17、ektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN 168100:1993 EEN168100:1993 BSI 11-1999 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee
18、 for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. The object of the System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures for electronic compon
19、ents, and by the grant of an internationally recognized Mark, or Certificate, of conformity. The components produced under the System are thereby acceptable in all member countries without further testing. This European Standard was prepared by CECCWG17, Piezoelectric devices for frequency control a
20、nd selection. The text of the draft based on documents CECC68100: Issue1:1989 (with A1 and erratum) and CECC (Secretariat)2852 and2853 was submitted to the formal vote together with the voting report, circulated as document CECC(Secretariat)2962. The text was approved by CECC as EN168100:1993 on14 J
21、anuary1992. The following dates were fixed: Contents Page Foreword 2 Section 1. Scope Section 2. General, preferred ratings and guidance on detail specifications 2.1 Related documents 3 2.2 Preferred ratings and characteristics 3 2.3 Information to be prescribed in detail specifications 3 Section 3.
22、 Capability approval 3.1 Eligibility for capability approval 4 3.2 Structural similarity 4 Page 3.3 Procedures for capability approval 4 3.4 Description of capability 4 3.5 Capability qualifying components (CQCs) 5 3.6 Inspection requirements for CQCs 6 3.7 Programme for capability approval 6 3.8 Ca
23、pability approval report 6 3.9 Abstract of description of capability 6 3.10 Modifications likely to affect capability approval 7 3.11 Initial capability approval 7 3.12 Maintenance of capability approval 19 3.13 Rework and repair work 20 3.14 Quality conformance inspection 20 3.15 Screening procedur
24、es 20 Section 4. Test and measurement procedures Annex A Example layout of an abstractofdescription of capability forinclusioninCECC00200 21 Annex B Layout of the front page of a CQCSpecification for process control 22 Annex C Layout of the front page ofaCQCSpecification to demonstrateaboundaryorlim
25、it 23 Figure 1 Plan for the selection of CQCs 8 Figure 2 Test plan for deposition ofelectrodematerial CQCs 9 Figure 3 Test plan for bonding CQCs 10 Figure 4 Test plan for mounting CQCs 10 Figure 5 Test plan for frequencyadjustmentCQCs 10 Figure 6 Test plans for enclosure CQCs 11 Figure 7 Test plan f
26、or crystal unitdesignandperformance CQCs 12 Figure 8 Test plan for CQCs for motionalparameters and unwanted responses 13 Figure 9 Test plan for ClimaticperformanceCQCs 13 Figure 10 Test plan for durability CQCs 13 Table 1 Test schedule for initialcapabilityapproval 14 Table 2 Periodic tests for main
27、tenanceofcapability approval 19 latest date of announcement of the EN at national level (doa) 1992-12-08 latest date of publication ofan identical national standard (dow) 1993-06-08 latest date of declaration ofnational standards obsolescence 1993-06-08 latest date of withdrawal ofconflicting nation
28、al standards (dow) 2002-12-08EN168100:1993 BSI 11-1999 3 Section 1. Scope This sectional specification applies to quartz crystal units manufactured as custom built products or as standard catalogue items and whose quality is assessed on the basis of capability approval. It prescribes the preferred r
29、atings and characteristics, with the appropriate tests and measuring methods contained in the generic specification EN168000 (CECC68000), and gives the general performance requirements to be used in detail specifications for quartz crystal units. The concept of preferred values is directly applicabl
30、e to standard catalogue items but does not necessarily apply to custom built products. Section 2. General, preferred ratings and guidance on detail specifications 2.1 Related Documents NOTEThe above references apply to the current editions except for IEC68 for which the referred edition and the appl
31、icable test clauses of EN168000 shall be used. 2.2 Preferred ratings and characteristics The values given in detail specifications shall preferably be selected from those stated in2.4 of the generic specification EN168000. 2.3 Information to be prescribed in detail specifications (for both custom bu
32、ilt and standard catalogue items) Guidance on the preparation of detail specifications is given in the blank detail specification EN168101 (CECC68101). For standard catalogue items each detail specification shall state all the tests and measurements required for inspection. This shall, as a minimum,
33、 include the relevant tests given in the blank detail specification, with methods and severities. The following information shall be given in each detail specification. 2.3.1 Outline drawing and dimensions The detail specification shall include a dimensional drawing of the crystal unit, and/or refer
34、ence to an appropriate International Standard, to permit easy recognition and to provide information for dimensioning and gauging procedures. The dimensions shall include the overall dimensions of the body of the component and the size and spacing of the terminations. All dimensions shall be stated
35、in mm. Terminal connections shall be identified for enclosures with more than two terminations. When a detail specification covers more than one enclosure the dimensions and their associated tolerances shall be placed in a table below the drawing. When the configuration is other than described above
36、, the detail specification shall state such dimensional information as will adequately describe the crystal unit. 2.3.2 Marking The detail specification shall prescribe the content of the marking on the crystal unit and on the primary package in accordance with2.5 of EN168000. 2.3.3 Ordering informa
37、tion The detail specification shall prescribe that the following information is required when ordering a crystal unit: 1) Quantity 2) Detail specification number, issue number and date and where applicable IEC 68, Basic environmental testing procedures. EN 168000, Generic specification: Quartz cryst
38、al units.EN168100:1993 4 BSI 11-1999 3) Nominal frequency in kHz or MHz and overtone order 4) enclosure type 5) frequency tolerance(s) and operating temperature range 6) circuit condition 7) full description of any additional requirements. 2.3.4 Additional information (not for inspection purposes) T
39、he detail specification may include information which is not normally required to be verified by the inspection procedure, such as circuit diagrams, curves, drawings and notes needed for clarification. Section 3. Capability approval 3.1 Eligibility for capability approval Prior to making an applicat
40、ion for capability approval a manufacturer shall first obtain manufacturers inspection approval in accordance with CECC00114-I. The primary stage of manufacture shall be as defined in3.1 of the generic specification EN168000. 3.2 Structural similarity A Structural similarity exists where a range of
41、crystal units incorporates one or more of the following features in common: materials, methods of sealing and agreed dimensional range for the enclosure crystal design and crystal processing. 3.3 Procedures for capability approval 3.3.1 General Capability approval in quartz crystal technology covers
42、: the complete design, material preparation and manufacturing techniques, including control procedures and tests the performance limits claimed for the processes and products, that is, those specified for the CQCs the range of mechanical structures for which approval is granted. 3.3.2 Application fo
43、r capability approval In order to obtain capability approval the manufacturer shall apply the rules of procedure given in 2.4 of CECC00114-III. In an application for capability approval the manufacturer shall define the boundaries of the capability for which approval is sought in accordance with3.5
44、of this specification. 3.3.3 Granting of capability approval Capability approval shall be granted when the manufacturer has: prepared a capability manual describing the capability for which he wishes to be approved, to the satisfaction of the ONS agreed with the ONS the range of CQCs, as defined in
45、2.7 of CECC00114-III, to be used for the assessment of capability successfully demonstrated that he can design and manufacture components which satisfy the requirements of this sectional specification, within the limits of his capability prepared a capability approval test report to the satisfaction
46、 of the ONS. 3.4 Description of capability The manufacturer shall prepare a manual describing his capability (see 2.5 of CECC00114-III), in relation to the technologies involved.EN168100:1993 BSI 11-1999 5 The manual shall be approved by the ONS who shall ensure that it is a true and complete record
47、 of procedures carried out by the manufacturer during the design, production, testing, inspection and release of his products. This manual is a document that shall be treated as “commercial in confidence”. The manual shall include the following as a minimum: a general introduction and description of
48、 the technologies involved aspects of customer liaison including provisions of design rules (if appropriate) and assistance to customers in the formulation of their requirements a detailed description of the design rules to be used the procedure for checking that the design rules are complied with f
49、or quartz crystal units manufactured to a detail specification a list of all materials used, with references to the corresponding purchasing specifications and goods inward inspection a flow chart for the total process showing quality control points and permitted rework loops and containing references to all process and quality control procedures a declaration of processes for which approval has been sought in accordance with3.5.1 a declaration of boundaries for which approval has been sought
