---
alias: user-guide-search-substrate-map
description: "This documentation details how to initiate a search within a Substrate Map system"
---

# Search Substrate Map

:lock: SubstrateMap.**Search**

## Overview

This operation is used to search a **Substrate Map** matching the selected criteria.  

## Setup

No specific setup is required other than to meet the preconditions of the transaction.

## Preconditions

* The **Substrate Map** exists in the system and it is in the Active state.

## Sequence of Steps

The **Search** button is available in the **Substrate Map** page within the Business Data Group.

### Step 1: Substrate Map Search

1. Select the **Search** button on the top ribbon to enter the **Substrate Map Search** page.
2. Select a search type to filter the database. Optionally, specify a date and time to further refine the results. You can search using one of the following methods:
      * Substrate - you must provide a Substrate Id, and you can optionally provide a Substrate Type (restricted to the E142 types - Wafer, Frame, Strip, Tray) and a Layout Specifier.
      * Carrier - you must provide a Carrier Id.
      * Lot - you must provide a Lot Id.
      * Alias - you must provide an Alias Type and Alias Value.
      * Device - you must provide a Device Id.

    !!! note
        These Ids can be found in the original file used to create the Substrate Map. For more information, see [[user-guide-cm-semi-e142-schema]].

3. Select **Search**.

![Screenshot showing a search interface for a substrate map, with fields or options not specified in the input.](images/search_substrate_map.png)