1、 27 June 2003 SUBJECT: Standards Proposal No. 5048, Proposed Revision of ANSI/EIA-481-B “8mm through 200 mm Embossed Carrier Taping and 8 mm FAX: 703-875-8908; Email: cyatesecaus.org COMMENT PERIOD EXPIRES: AUGUST 27, 2003 Each comment submission should indicate either: _I am providing the attached
2、technical comments concerning standardization of the contents of SP-5048 as an American National Standard, and recommend that the attached, along with the reason(s) for making the recommendation, be considered by the ACH Committee. _I am providing the attached editorial comments concerning standardi
3、zation of the contents of SP-5048 as an American National Standard, and recommend that the attached, along with the reason(s) for making the recommendation, be considered by the ACH Committee. DATE _ NAME _ (Please print) TEL:_ NAME _ (Signature) E-MAIL:_ COMPANY _ _ ADDRESS _ _ Copyright Electronic
4、 Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE This document is an EIA Engineering Standards Proposal, rather than an interim or final Standard. It is published for purposes of comment and is subjec
5、t to further review and modification by the EIA Engineering Department Executive Committee (EDEC), which may accept or reject the Standards Proposal. Accordingly, readers of this Standards Proposal are cautioned against relying on information contained therein prior to the adoption of a final standa
6、rd. EIA disclaims any liability or responsibility for the consequences of such reliance. Published by ELECTRONIC INDUSTRIES ALLIANCE 2003 Technology Strategy i.e. A0= B0(Figure 1). (e) The tape pocket quadrant designations that describe the taped orientation of components are shown in Figure 1. (f)
7、Use the rules in the sequence shown in the following flow chart (Figure 2) to determine the correct orientation of the component in the tape pocket. (g) The rules described in this standard shall supercede all prior standards established in EIA-481 and EIA-800 for the following component packages: S
8、OT23, SOT143, SOT89, SOT223, IPD. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA-481-C Page 5 Figure 1 - Component orientation and quadrant designationsRound sprocket holesComponent
9、Elongated sprocket holes(32 mm tape and wider)Round sprocket holesQuadrant designations:1 = upper left2 = upper right3 = lower left4 = lower rightElongated sprocket holes(32 mm tape and wider)User directionof unreelingAoBo1 23 4User directionof unreelingCopyright Electronic Industries Alliance Provi
10、ded by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA-481-C Page 6 Figure 2 - Rules for determining orientation of component in tape pocket (1 of 2) Yes To Next Page No N No Yes Is the outline of the component square? Does one edge co
11、ntain the most terminations? Place component with its long axis perpendicular to tape length and with the edge containing the most leads in Quadrants 1 and 3. If orientation in Quadrants 1 and 3 is not possible, place the edge containing the most leads near the round sprocket holes. Examples Place c
12、omponent with its long axis perpendicular to tape length and with its orienting feature near the round sprocket holes. Examples Start Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA-
13、481-C Page 7 Figure 2 - Rules for determining orientation of component in tape pocket (2 of 2) From Previous Page No Yes No Yes Does one edge contain the most terminations? Place component with the edge containing most terminations in Quadrants 1 and 3. Examples Place component with the edge associa
14、ted with the orienting feature near the round sprocket holes. Examples Is the orienting feature close to or associated with only one edge? Place component with its orienting feature in Quadrant 1. Example Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo
15、 reproduction or networking permitted without license from IHS-,-,-EIA-481-C Page 8 Figure 3 - 8 mm if used, dimensions B and D shall apply.N(Hub diameter,see Note 2, Tables 1, 2 & 3)A(Hub diameter,see Note 2,Tables 1, 2 & 3)W1 (Measured at hub)W2 (Measured at hub)W3 (Includesflange distortionat out
16、er edge)Reel With Drive HoleReel Without Drive HoleNC(Arbor HoleDiameter)Optional Access Hole( 40 mm min.)R28.5525.49.57.6DriveHoleCopyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA-481
17、-C Page 17 Table 4 - Reel dimensions See Section 4.0 for requirements (all dimensions in millimeters) Constant Dimensions Reels Without Drive Hole Reels With Drive Hole Tape Size A Max. B Min. C D Min. B C Max. D 8 mm to 200 mm 609 1.5 13.0+0.5 -0.2 20.2 Not Applicable 29.2 Not Applicable Variable D
18、imensions Tape Size (mm) N Min. See Note 2, Tables 1-3 W1W2 Max for A 360 mm See Note 1 W2 Max for A 360 and 609 mm See Note 2 W38 8.4 +1.5/-0.0 14.4 14.4 12 12.4 +2.0/-0.0 18.4 18.4 16 50 16.4 +2.0/-0.0 22.4 29.0 24 60 24.4 +2.0/-0.0 30.4 37.0 32 32.4 +2.0/-0.0 38.4 45.0 44 44.4 +2.0/-0.0 50.4 57.0
19、 56 56.4 +2.0/-0.0 62.4 69.0 72 72.4 Min. 89.0 88 88.4 Min. 105.0 104 104.4 Min. 121.0 120 120.4 Min. 137.0 136 136.4 Min. 153.0 152 152.4 Min. 169.0 168 168.4 Min. 185.0 184 184.4 Min. 201.0 200 See Note 3 200.4 Min. 217.0 Shall Accommodate Tape Width Without Interference Notes 1 For reels less tha
20、n 360 mm diameter (A), the most widely used reel diameters are 178 mm 2 mm and 330 mm 2 mm. Reel diameters ranging from 254 mm to 292 mm also exist. Commonly used hub diameters are 80, 100, 150, and 178 mm. 2 For reels greater than or equal to 360 mm diameter (A), various sizes exist with the most w
21、idely used being 381 mm 2 mm, 482 mm 2 mm and 558 mm 2 mm. Hub diameters vary widely, up to 254 mm. 3 Tape with components must wrap around hub without damage. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without
22、 license from IHS-,-,-EIA-481-C Page 18 Left Intentionally Blank.Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EIA-481-C Page 19 Addendum Complementary Taping Standards: EIA-726 8 mm P
23、unched & Embossed Carrier Taping of Surface Mount Components for Automatic Handling of Devices Smaller Than 2.0 mm x 1.2 mm EIA-747 Adhesive Backed Punched Plastic Carrier Taping of Singulated Bare Die and Other Surface Mount Components for Automatic Handling of Devices Generally Less Than 1.0 mm Th
24、ick EIA-763 Bare Die and Chip Scale Packages Taped in 8 mm & 12 mm Carrier Tape for Automatic Handling Other Reference Documents: ESD TR20.20 ESD Association Standard - ESD Handbook ESD ADV1.0 ESD Association Glossary Glossary of Terms SEMI E78 Semiconductor Equipment and Materials International Sta
25、ndard Electrostatic Compatibility Guide to Assess and Control Electrostatic Discharge (ESD) and Electrostatic Attraction (ESA) for Equipment Recommendation: For waste minimization purposes it is recommended that the industry modify its methods and equipment so that the minimum leader dimension can be eventually reduced from 400 mm to 320 mm and that the minimum trailer dimension be reduced from 160 mm to 80 mm. Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
