semi合集-English.pdf - 第7699页

SEMI T8-0698 E © SEMI 1998, 2004 8 NOTICE: SEMI makes no warranties or represen tations as to the suitability o f the standards set forth herein for any particular application. The determination of the suitability of the…

SEMI T8-0698

APPENDIX 1

PLACEMENT OF DATA MATRIX CODES ON DISPLAY SECTIONS OF

FLAT PANEL DISPLAY SUBSTRATES

NOTICE: This appendix was approved as an official part of SEMI T8, but the recommendations in this appendix

are optional and are not required to conform to this standard.

A1-1 The following suggests one way in which individual display sections could be marked while still a part of the

motherglass substrate. Figure A1-1 illustrates a six-up display layout on a 550 × 650 mm substrate

Figure A1-1

An Example of Mark Field Locations in Individual Display

Sections within a “Motherglass” Substrate

A1-2 The Substrate ID location falls within the edge exclusion area as detailed in Figure 4. In this example, all ID

fields are located on the back (non-pattern) surface. Placing them on the same surface as the substrate mark can

simplify ID reading during fabrication. Their location on the non-pattern surface could allow ID reading of the

outside surface of a display after assembly.

A1-3 The axes of the individual display IDs are parallel to the substrate ID axes. Each display ID is located adjacent

to a display corner. The locations of each ID field are given.

NOTE A1-1: This example does not constitute a recommended usage, but is intended to assist users in developing ID locations

suitable for their operations.

SEMI T8-0698

NOTICE: SEMI makes no warranties or representations as to the suitability of the standards set forth herein for any

particular application. The determination of the suitability of the standard is solely the responsibility of the user.

Users are cautioned to refer to manufacturer's instructions, product labels, product data sheets, and other relevant

literature, respecting any materials or equipment mentioned herein. These standards are subject to change without

notice.

By publication of this standard, Semiconductor Equipment and Materials International (SEMI) takes no position

respecting the validity of any patent rights or copyrights asserted in connection with any items mentioned in this

standard. Users of this standard are expressly advised that determination of any such patent rights or copyrights, and

the risk of infringement of such rights are entirely their own responsibility.

International), 3081 Zanker Road, San Jose, CA 95134. Reproduction of

the contents in whole or in part is forbidden without express written

consent of SEMI.

SEMI T9-0200 © SEMI 1998, 2004 1

SEMI T9-0200 (Reapproved 1104)

SPECIFICATION FOR MARKING OF METAL LEAD-FRAME STRIPS

WITH A TWO-DIMENSIONAL DATA MATRIX CODE SYMBOL

This specification was technically approved by the Global Traceability Committee and is the direct

responsibility of the North American Traceability Committee. Current edition approved by the North

American Regional Standards Committee on July 11, 2004. Initially available at www.semi.org September

2004; to be published November 2004. Originally published in 1998; previously published April 2000.

1 Purpose

1.1 This specification provides a marking symbology

that can be used to mark metal lead-frame strips.

2 Scope

2.1 This specification defines the geometric and spatial

relationships and content (including the error checking

and correcting code) of rectangular two-dimensional (2-

D), machine-readable, binary Data Matrix symbology

for front-surface marking of metal lead-frame strips

(also called “strips”). It may be used in conjunction

with the alphanumeric marking codes specified in

SEMI M12 and SEMI M13 or the bar code specified in

SEMI T1.

2.2 This specification defines a 22-character default

message that is included in all marks, and option for up

to 50 additional characters, for a total of 72 message

characters. An optional shorter message contains 12 to

16 message characters; the resulting square field is

narrower but taller than the 22-character rectangular

one.

2.3 This specification provides a suggested location for

the code symbol. It also provides guidelines for

specifying other code locations when the suggested

location is not suitable for an application.

2.4 Although this specification does not specify the

marking techniques that may be employed when

complying with its requirements, it is assumed that the

symbol will be obtained by laser scribing individual

dots.

NOTE 1: A mark survivability experiment is being

conducted by the SEMI North American Traceability

committee. A report is available from SEMI: request

“Leadframe Mark Survivability Report” dated February,

1999.

2.5 Data Matrix symbology is applicable to a broad

range of lead-frame materials including copper and

Alloy 42 in both bare and plated conditions. The format

and algorithms of this code are based on two-

dimensional symbology specified in AIM International

Symbology Specification - Data Matrix.

2.6 This specification supports EIA Package Marking

Specification by enabling individual die tracking in the

manufacturing steps between die attach and device

packaging marking.

NOTE 2: Marking of each die, while in wafer form, prior to

dicing, could also accomplish this end.

NOTICE: This standard does not purport to address

safety issues, if any, associated with its use. It is the

responsibility of the users of this standard to establish

appropriate safety and health practices and determine

the applicability of regulatory or other limitations prior

to use.

3 Referenced Standards

3.1 SEMI Standards

SEMI M12 — Specification for Serial Alphanumeric

Marking of the Front Surface of Wafers

SEMI M13 — Specification for Alphanumeric Marking

of Silicon Wafers

SEMI T1 — Specification for Back Surface Bar Code

Marking of Silicon Wafers

3.2 AIM International Technical Specifications

AIM International Symbology Specification — Data

Matrix

3.3 ANSI Standards

ANSI/FACT-1 — Data Application Identifier Standard

ANSI X3.4 — American Standard Code for

Information Interchange (ASCII)

NOTE 3: This standard is equivalent to ISO 646, Information

Processing - ISO 7-bit Coded Character Set for Information

Exchange

1 AIM International, Inc., 125 Warrendale-Bayne Road , Warrendale,

PA 15086, Phone: 1 724 934 4470, Fax: 1 724 934 4495,

http://www.aimglobal.org/

2 American National Standards Institute, Headquarters: 1819 L

Street, NW, Washington, DC 20036, USA. Telephone: 202.293.8020;

Fax: 202.293.9287, New York Office: 11 West 42nd Street, New

York, NY 10036, USA. Telephone: 212.642.4900; Fax:

212.398.0023, Website: www.ansi.org