Opening TMA Files

The TMA file type is primarily associated with Inova Wafermap.

TMA	File extension: TMA
	File type:	data file

What is a TMA file?

TMA files mostly belong to Inova Wafermap. TMA files are used in the semiconductor industry as internal wafer map data files.
This file type stores detailed mapping information from semiconductor wafers. It contains data such as coordinates, measurement points, and defect locations that are crucial for quality control in wafer fabrication. Companies like Inova Semiconductor use this proprietary format to monitor and analyze wafer performance and yield.
Key Points as outlined by FilExt.com:

Stores precise mapping data of semiconductor wafers.

Includes measurement and defect data essential for quality assessment.

Operates as an internal format not designed for general use.

FilExt.com note: If you have a TMA file, you will need specialized wafer map analysis software to view and interpret the data. Generic text editors or common data viewers will not correctly display the detailed measurement information in these files.

How do you open TMA files?

You need a suitable software like Inova Wafermap to open a TMA file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your TMA file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a TMA file directly in the browser:. Just drag the file onto this browser window and drop it.

Online TMA Text Viewer

Choose your .tma file to analyze

or drag and drop it here

Online File Viewer

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TMA format details:

If you can determine the file format, the associated program can also be determined. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Knowledge is power - this also applies when dealing with unknown or faulty files. Below you will find our evaluation of the TMA files:

The TMA file extension is not common and is used by different programs with different formats. The two most common formats are as follows:

• 45% of all TMA files start with the bytes WAFER_MAP = { crucial for this file format. The contents of these files are easily readable with a text editor. The file size is in the range of 27 KB to 65 KB. The file type was created recently. The files contain the following words: CUSTOMER_NAME = "ASSEMBLY", FLAT_NOTCH = D, FORMAT_REVISION = "INOVA FORMAT", MAP_TYPE = "ASCII", NULL_BIN = ".", WAFER_MAP = {, Wafer_ID, ROWS = 287, COLUMNS = 225 and SUPPLIER_NAME = "INOVA. These files are often associated with inlc.
• 6% of all TMA files start with the bytes TM crucial for this file format. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 37 MB in size and range from 400 KB to 37 MB. Certain words are almost always found in the files, such as )"I(8H and SCRL.

The remaining 49% of all TMA files are different files with different signatures. Often described as history, field, bspc or bspd. Drag & drop your file here to see the file format and a preview of your TMA file!