Multitest, a designer and manufacturer of final test handlers, contactors and load boards used by integrated device manufacturers (IDMs) and final test subcontractors worldwide, announces that its installed base of WLCSP contactors is steadily growing. The contactors are running high-volume production at subcontractors in China, Taiwan, Singapore and other locations. They show outstanding lifetime performance, contributing to unreached cost of test.
itest has been shipping WLCSP contactors for the past two years, which is relatively short compared to the decades of past shipping contactors for singulated devices. During this time, the company has learned that its contactors last much longer in the wafer-level test environment than in the package-test environment.
While Multitest’s Mercury probes achieve a good life of 500-700k insertions in package-test environments, the company is seeing probes in wafer-level test environments that are lasting 1.5-4 M for insertions and continue to provide excellent performance. This helps to make Multitest’s WLCSP contactor the industry leader for total cost of test solutions.