---
alias: user-guide-substrate-map-mask-index
tags:
- mapping
description: "Substrate Map Masks define substrate layouts for precise material processing and pattern formation"
---

# Substrate Map Mask

:lock: SubstrateMapMask.**Show**

A **Substrate Map Mask** is an entity that represents a mask of a substrate which can be a wafer, frame, strip or tray in SEMI E142 format (XML and Unit Level).

The purpose of the **Substrate Map Mask** is essentially to control exposure and pattern formation on the surface of a **Material**, ensuring that only the desired areas undergo a certain process, such as etching, deposition, or chemical treatment.

SEMI E142 is a standard that provides a way to report, store and transmit **Substrate Maps Masks** between semiconductor manufacturing sites by describing the layout of devices on a substrate.

Your `xml` **Substrate Map Mask** content must comply with the following restrictions:

* Contain a single **Substrate Map** with a single **Overlay** of type `BinCodeMap` with a single **Version**
* Contain only two Bin Definitions with Bin Codes different from `NullBinValue`:
    * A `BinQuality` set to `“SetValue”` for which the `BinCount` must be > 0
    * A `BinQuality` set to `“EmptyBinValue”` for which the `BinCount` must be >=0

!!! note
    The `“SetValue”` and `“EmptyBinValue”` are conventions used for the purposes of a **Substrate Map Mask**. See [[user-guide-substrate-map-mask-page]] for an [[user-guide-substrate-map-mask-page#example-of-substrate-map-mask-file|Example of Substrate Map Mask File]].

This Critical Manufacturing MES feature allows you to visualize an array of `xml` **Substrate Map Masks** because of the customizations performed on the original SEMI E142 standard. For more information, see [[user-guide-cm-semi-e142-schema]].

!!! info
	  The Substrate Map Mask entity is part of Mapping which is a Critical Manufacturing optional module.

To better understand the **Substrate Map Mask** entity, the following concepts and definitions are relevant:

| Concept | Description |
|---------------------------------------|----------------------------------|
| Axis Direction (see also Origin Location) | Defines in which direction of the axis, X and Y, values increase. These can be Up Right, Down Right, Up Left, and Down Left. The default value is Up Right. |
| Frame | A wafer mounted on a film frame so that it may be diced, and the die is picked and placed in a package. |
| Layout | The logical and physical dimensions of a two-dimensional array of devices to which a map may be assigned. |
| Map | A two-dimensional array of data for a specific layout on a substrate. |
| Mask | A protective or selective layer used during manufacturing processes to define patterns or regions on a substrate.|
| Orientation | The rotation of the substrate (0, 90, 180 or 270 degrees). The default value is zero. |
| Origin Location | Where the (0,0) coordinate is located. It can be Lower Left, Lower Right, Upper Left, Upper Right or Center. The default value is Lower Left.|
| Panel | A rectangular or square substrate on which an array of devices are fabricated. |
| Strip | A lead frame, board, or other container on which an array of devices are fabricated. |
| Substrate | A surface upon which something is deposited, etched, attached, or otherwise prepared or fabricated. Examples of substrates are wafers, frames, strips, and trays. |
| Wafer | A round substrate on which an array of devices are fabricated. |

Table 1: Substrate Map Mask Concepts and Definitions

## Tying Everything Together

```mermaid
graph TD
    N1[Substrate Map Mask Content - Raw XML] --> Main
    Main[Substrate Map Mask]

classDef mermaid_title color:#000, fill:#fafafa, stroke:#fafafa, stroke-width:0x, font-size:100%, font-weight:200;
classDef mermaid_start color:#000, fill:#fafafa, stroke:#fafafa, color:#fafafa, stroke-width:0x, font-size:100%, visibility: hidden;
classDef mermaid_businessdata color:#000, fill:#65CDE8, stroke:#65CDE8, stroke-width:0px, font-size:100%;
classDef mermaid_nonbusinessdata color:#000, fill:#B7DEE8, stroke:#B7DEE8, stroke-width:0px, font-size:100%;
classDef mermaid_entity color:#000, fill:#FB9F53, stroke:#FB9F53, stroke-width:0px, font-size:100%;
classDef mermaid_entitylinked color:#000, fill:#FCD5B5, stroke:#FCD5B5, stroke-width:0px, font-size:100%;
classDef mermaid_context color:#000, fill:#B9CDE5, stroke:#B9CDE5, stroke-width:0px, font-size:100%;
classDef mermaid_optional color:#000, fill:#B7DEE8, stroke:#65CDE8, stroke-width:1px, font-size:100%, stroke-dasharray: 5 5;
class Main mermaid_entity
class A1 mermaid_businessdata
class L1,L2,L3,L4,L5,L6,L7,L8,L9 mermaid_entitylinked
class ST1 mermaid_context
class N1,N2,N3,N4,N5,N6 mermaid_nonbusinessdata

click Main "../../business-data/substrate-map-mask"
```

## Sequence of Steps

The necessary step for correctly creating and using a **Substrate Map Mask** is:

1. Create a [[user-guide-create-substrate-map-mask]].

{{ generate_index() }}