June 2021

Oct 2018

June 2017

March 2017

March 2016

June 2015

Nov 2014

Oct  2014

April 2014

Dec 2013

Dez 2012

Oct 2012

June 2008

Nov 2007

atg Luther & Maelzer is acquired by Mycronic.

Xcerra Corporation is acquired by Cohu, Inc.

atg Luther & Maelzer celebrates the 1500. flying probe tester produced in Wertheim/Germany

Release of automatic flying probe tester A8a with new dual shuttle technology and housing design

Release of automatic step tester LM1000 on CPCA show Shanghai

Introduction of double-sided substrate tester S3-8 on JPCA Show Tokio

Introduction  of oversize flying probe  tester with up to 24 test heads and 60″ test area

Launch of single-sided substrate tester S3-4

Combined business renamed to Xcerra Corporation

atg Luther & Maelzer is acquired by LTX-Credence

Release of automatic flying probe tester A7a for production panel test

Release of flying probe tester A7 with direct linear drive technology

Introduction of the Octal density (35 mil) fixture tester LM800 Picomat

Introduction of the new generation of automated flying probe tester A5a on Productronica show Munich

July 2006

atg Wertheim and LM Wunstorf start to consolidate operations and merged into

atg Luther & Maelzer GmbH

atg test systems History


A6 flying prober with 16 test heads launched


First flying probe test system for a 100 % test with 6 test probes


First grid bare board system built


Founding of atg cable and wiring test system

Luther & Maelzer History


First machines of the LM400 series sold


First double sided test system built – LM100/20 series


First tester of LP 1800 series built


Founded by Erich Luther & Martin Maelzer

© atg Luther & Maelzer 2023
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