---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/100000000889321.md"
description: "MPI Corp., the Taiwan maker of probe cards for semiconductor testing, won Samsung Electronics as a new client for cards used with silicon photonics (Photonic IC wafers), media report, noting MPI’s top customer is TSMC. Samsung will also use probe cards from FormFactor, the US firm. Specialized probe cards are used to separate good chips from bad. They test whether optical chips can convert electrical and optical signals properly, according to design. $Formfactor(FORM.US) #MPISource: Dan Nystedt"
datetime: "2026-09-08T07:46:44.000Z"
locales:
  - [en](https://longbridge.com/en/topics/100000000889321.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/100000000889321.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/100000000889321.md)
author: "[AI Gossip](https://longbridge.com/en/profiles/17581203.md)"
generator: "portal-rs"
---

# MPI Corp., the Taiwan maker of probe cards for sem…


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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**