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SEMI T3-0302 © SEMI 1995, 2002 4 6.1.3.6 Field Iden tifi er for customer draw ing revision : 22P 6.1.4 The lower bar code data field (see T able 2 and Figure 2 b) shall contain the 35-m essage character traceability num …

SEMI T3-0302 © SEMI 1995, 2002 3

4.4 Terms relating to the data matrix code symbol

characteristics are defined in SEMI T2 and ISO/IEC

16022.

4.5 Definitions of terms relating to code content are as

follows:

4.5.1 customer information field — a 35-character field

containing the customer product ID and, if desired,

other customer assigned information.

4.5.2 customer product ID — a unique combination of

alphanumeric characters assigned by a customer or

purchaser to identify a product, sometimes called

customer part number.

4.5.3 data field — a specific portion or area of a label

designated to contain a human readable interpretation, a

bar code symbol, or a two-dimensional matrix code

symbol.

4.5.4 data identifier — a specified character or

character string that defines the category or intended

use of data that follows.

4.5.5 encrypted data — data entered by the vendor,

usually to facilitate traceability, that may or may not be

shared with the customer.

4.5.6 human readable interpretation (hri) — the

interpretation of all or a portion of a bar or matrix code

symbols presented in a type font which can be read by

persons.

4.5.7 message character — a character that contains

data, encoded into a bar or matrix code symbol.

NOTE 3: Data identifiers and concatenation characters are

considered to be message characters, but start/stop characters

are not.

4.5.8 message length — the number of message

characters contained in a single encoded message.

4.5.9 traceability number, of a wafer box label — a

string of 35 message characters comprising a lot

number, vendor code (including manufacturing loca-

tion, if desired), and date of labeling together with the

appropriate data identifier and concatenation characters.

5 Ordering Information

5.1 Purchase orders for the wafers furnished with wafer

box labels in conformance with this specification shall

include the following:

5.1.1 Statement that the wafer box label conforms to

SEMI Specification T3.

5.1.2 Content of message characters for customer in-

formation field.

5.1.3 Label type (see Section 7.1) or, if additional

space is available on the box, dimensions of labels and

placement of fields thereon.

5.2 In addition, the following optional items may be

specified:

5.2.1 If a two-dimensional matrix code symbol is

included on the label:

5.2.1.1 Inclusion or exclusion of wafer identification

information.

5.2.1.2 User-specified data, if required, and re-

quirement, if any, for sharing of code for encrypted

data.

5.2.2 Label locations on the wafer box, if different

from the recommended locations.

6 Content and Characteristics of Data Fields

6.1 Bar Code Symbols

6.1.1 The label shall contain two data fields for bar

code symbols, when such symbols are specified. Each

bar code symbol shall contain 35 message characters in

addition to the start/stop characters.

6.1.2 A non-printed message header is normally

encoded when encoding multiple, concatenated data

fields. However, this header is not encoded in the bar

code fields to conserve space. The absence of this

message header requires appropriate software in bar

code reading systems, to separate the data fields.

6.1.3 The upper bar code data field, the customer

information field (see Table 1 and Figure 2a), shall

contain the customer product ID preceded by a “P,” the

data identifier for this item as specified in ANSI

MH10.8.2.

6.1.3.1 Optionally, if the customer product ID occupies

less than 34 characters, the customer identification field

may also contain one or more of the subfields listed

below, up to the limit of 35 characters total. Each

optional subfield shall be preceded by the concatenator

symbol “+ ” and the data identifier(s) below, in

accordance with ANSI MH 10.8.2.

6.1.3.2 Field Identifier for customer part number

revision: 2P

6.1.3.3 Field Identifier for customer specification

number: 20P

6.1.3.4 Field Identifier for customer specification

revision: 21P

6.1.3.5 Field Identifier for customer drawing number:

12P

SEMI T3-0302 © SEMI 1995, 2002 4

6.1.3.6 Field Identifier for customer drawing revision: 22P

6.1.4 The lower bar code data field (see Table 2 and Figure 2b) shall contain the 35-message character traceability

number. This field is divided into four subfields, each separated from the adjacent field by the concatenation

symbol “+ .” The first subfield contains the lot number of 16 characters, preceded by the data identifier “1T.” The

second subfield contains the 2-character SEMI vendor identification code, preceded by the data identifier “1V. ”

The third subfield contains the labeling date (YYMMDD), preceded by the data identifier “D. ” The fourth subfield

contains the quantity, preceded by the data identifier “Q. ” The quantity indicated on the label shall be the number

of wafers in the wafer box to which the label is affixed; the unit of measure is understood as each (EA). The

message characters in this symbol are distributed as shown in Table 2.

Table 1 Content of Bar Code Symbol in Upper Bar Code Data Field (Customer Information Field)

Number of characters Symbol Content Notes

Required Subfield

First 1 Data Identifier “P”

message dependent Customer Product ID (e.g. part number) (Customer-specified)

Optional Subfields

3 Concatenator + Data Indentifier “+ 2P”

message-dependent Customer Part Number Revision (Customer-specified)

4 Concatenator + Data Indentifier “+ 20P”

message-dependent Customer Specification Number (Customer-specified)

4 Concatenator + Data Indentifier “+ 21P”

message-dependent Customer Specification Number Revision (Customer-specified)

4 Concatenator + Data Indentifier “+ 12P”

message-dependent Customer Drawing Number (Customer-specified)

4 Concatenator + Data Indentifier “+ 22P”

message-dependent Customer Drawing Revision (Customer-specified)

NOTE 1: The total number of characters in the field shall not exceed 35; any character location not filled with data shall contain a dash.

Table 2 Content of Bar Code Symbol in Lower Bar Code Data Field (Traceability Number)

Character Location Symbol Content (All required fields) Notes

1–2 Data Identifier “1T”

3–18 Lot Number (Supplier assigned)

19–21 Concatenation Symbol and Data Identifier “+ 1V”

22–23 Vendor Identification Code (SEMI) (See Note 1)

24–25 Concatenation Symbol and Data Identifier “+ D”

26–31 Labeling Date (YYMMDD) (See Related Information 1)

32–33 Concatenation Symbol and Data “+ Q”

34–35 Quantity (unit, EA, implied) (numeric)

NOTE 1: The SEMI vendor identification code may contain information on manufacturing location. AUX1 contains multiple codes indicating

manufacturing location for some, but not all, wafer suppliers. If desired, suppliers whose codes do not now include manufacturing location

identification can request additional codes for each location from SEMI, following the procedure in AUX1.

6.1.5 All bar code symbols shall use the Code 39 bar code as specified in ISO/IEC 16388, unless an optional bar

code is selected (see Section 6.1.9). Code 39 is a variable length, discrete, self-checking, bi-directional bar code.

Each character is composed of nine elements: Five bars and four spaces. Three of the nine elements are wide and

six elements are narrow.

6.1.6 Character Set — The Code 39 character set consists of 43 characters: 0-9, A-Z,+ ,-,.,$ ,/,%, and space. In

addition, an asterisk (*) is used only for both the start and stop characters; it cannot be used as a message character.

No other characters shall be encoded in the bar code symbols of labels covered by this specification. In the absence

of a character at any assigned location, a dash (-) shall be used.

6.1.7 Print Quality — The Code 39 print quality shall be B/03/630 or better in accordance with ANSI X3.182. To

assure reading efficiency, the minimum reflectance of the quiet zones shall be 60%, the minimum reflectance of

spaces shall be 51%, and the maximum reflectance of bars shall be 10%.

6.1.8 Symbol Dimensions — Bar code symbol dimensions shall be as listed in Table 3.

6.1.9 Other Bar Code Symbology — Code 128 may be used in lieu of Code 39. Users must verify that this code fits

within the available label space.

6.2 Human-Readable Interpretation Symbols

6.2.1 Each bar code symbol data field on the label shall have an associated human-readable data field either

immediately above or immediately below it. The symbol in each of the human-readable data fields shall contain all

the message characters contained in the associated bar code data field. Start and stop characters shall not be

included, but the data field identifiers and concatenation symbols shall be included.

6.2.2 The nominal height of the human-readable characters shall be 2.0 mm (0.08 in.).

6.2.3 There shall be a clear space of 0.5 mm (0.02 in.) above and below each human-readable symbol.

6.3 Data Matrix Code Symbol

6.3.1 The label may contain up to two identical square two-dimensional matrix code symbols each with up to 682

message characters when six-bit characters are encoded using the EDIFACT encodation scheme described in

Annexe J3 of ISO/IEC 16022 (see also Table 11 in ISO/IEC 16022 ).

6.3.2 The first six characters shall contain the message header, in accordance with EIA 706; this header identifies a

message that contains data identifiers that are in accordance with ANSI MH10.8.2. The header content is not

printed.

6.3.3 The next 71 characters in the matrix code symbol shall contain the information included in the two bar code

symbols on the label, together with additional concatenation symbols, as summarized in Table 4. In the absence of a

character at any assigned location, a dash (-) shall be used. This information shall also be included if the bar codes

are not printed.

Table 3 Nominal Dimensions of Bar Code 39 Symbols

Symbol Dimension Metric (SI) Value U.S. Customary Value

- number of message characters 35 35

X width of narrow bar 0.125 mm 0.00493 in.

N ratio of wide to narrow bar width 2.0 2.0

I nominal intercharacter gap 0.1251 mm 0.00493 in.

H bar height (See Note 1.)

9.0 mm 0.35 in.

L' bar code symbol length (excl. quiet zones) 60.06 mm 2.365 in.

- bar code density (excl. quiet zones) 0.583 cpmm 14.80 cpi

Q width of quiet zone (See Note 1.)

6.35 mm 0.25 in.

L total length of bar code symbol 72.76 mm 2.865 in.

NOTE 1: The metric (SI) and U.S. Customary values of this dimension are not exact equivalents; the dimension has been rounded to obtain

rational values in both systems.

6.3.4 For boxes to be used for wafers between 100 and 200 mm in diameter, the content of the remainder of the data

matrix code symbol is optional, as agreed between the customer and supplier. However, it is recommended that the

remaining message characters in the Data Matrix code symbol include the following 500-character wafer

identification information. For labels to be used on 300 mm FOSBs, the wafer identification information is

required, in accordance with SEMI M45.

6.3.4.1 These next 500 characters identify the slot number and individual wafer identification of each wafer in the

box, with a string of 25 twenty-character fields. Each of these fields contains:

a. The concatenation character (“+ ”) and Data Identifier for the slot ID (“31T”) and a two-digit number of the slot,

and