Unisem Executive and Leadership Team

July, 2026

Leadership Overview

Unisem has 8 executives leading key functions including strategy, operations, sales, and marketing.

Driven by innovation, Unisem provides integrated semiconductor assembly and test services, shaping the future of electronic components through advanced packaging and testing solutions.

Leadership Roles at Unisem

  • Chief Executive Officer - Bruno Guilmart
  • Chief Operating Officer - Kh Tan
  • Group Chief Operating Officer - Kevin Khoo
  • Group Chief Operating Officer - C.H. Ang
  • President & Chief Operating Officer - Tan Heng
  • President - Marita Erickson
  • President & Director - Michael McKerreghan
  • Vice President, Sales & Marketing - Jasmine Liang
  • Bruno Guilmart - Chief Executive Officer

    Bruno Guilmart, the Chief Executive Officer at Unisem, directs the company's overall strategic vision and operational execution. Guilmart oversees all facets of the business, ensuring alignment with market demands for semiconductor assembly and test services. This leadership encompasses driving innovation in packaging technologies and expanding the company's global footprint. By focusing on integrated solutions, Bruno Guilmart ensures Unisem maintains its competitive edge in providing wafer bumping, wafer probing, and diverse IC packaging options. The Chief Executive Officer's mandate includes fostering strong client relationships and guiding the company's growth trajectory within the competitive OSAT sector. Guilmart's strategic direction ensures the delivery of high-quality RF, analog, digital, and mixed-signal test services, directly impacting Unisem's market position and financial performance.

    Kh Tan - Chief Operating Officer

    Kh Tan, the Chief Operating Officer at Unisem, manages the day-to-day operational activities critical to the company's service delivery. Tan oversees the efficient execution of semiconductor assembly and test processes, ensuring adherence to stringent quality standards. This role involves optimizing production workflows for wafer bumping, wafer probing, and wafer grinding services. Kh Tan's responsibilities extend to managing the integration of various packaging solutions, including leadframe, substrate IC packaging, and wafer level CSP. By streamlining operations, Kh Tan enhances the company's capacity to deliver complex RF, analog, digital, and mixed-signal test services. The Chief Operating Officer's focus on operational excellence directly supports Unisem's mission to provide reliable and advanced OSAT solutions to its global clientele. Tan's leadership ensures manufacturing efficiency and timely product delivery.

    Kevin Khoo - Group Chief Operating Officer

    Kevin Khoo, the Group Chief Operating Officer at Unisem, spearheads the operational strategy across the company's global manufacturing facilities. Khoo directs the implementation of advanced assembly and test methodologies, ensuring consistent quality and scalability. This leadership involves optimizing the supply chain for critical components and managing production capacities for diverse packaging types. Kevin Khoo's purview includes overseeing the integration of wafer level CSP and advanced substrate IC packaging solutions. The Group Chief Operating Officer's efforts focus on driving operational efficiencies and cost-effectiveness in wafer bumping, wafer probing, and wafer grinding processes. By enhancing manufacturing processes, Kevin Khoo supports Unisem's commitment to delivering cutting-edge RF, analog, digital, and mixed-signal test services. Khoo's strategic oversight ensures operational readiness for evolving industry demands.

    C.H. Ang - Group Chief Operating Officer

    C.H. Ang, the Group Chief Operating Officer at Unisem, drives operational excellence and process innovation throughout the organization. Ang focuses on enhancing the efficiency and effectiveness of semiconductor assembly and test services, particularly in advanced packaging technologies. This includes overseeing the integration of leadframe and substrate IC packaging, as well as wafer level CSP solutions. C.H. Ang's responsibilities encompass optimizing wafer bumping, wafer probing, and wafer grinding operations to meet stringent client specifications. The Group Chief Operating Officer's strategic initiatives aim to improve throughput and reduce cycle times for RF, analog, digital, and mixed-signal test services. By fostering a culture of continuous improvement, C.H. Ang ensures Unisem maintains its leadership in providing high-quality OSAT solutions. Ang's operational leadership supports global market competitiveness.

    Tan Heng - President & Chief Operating Officer

    Tan Heng, the President & Chief Operating Officer at Unisem, commands the comprehensive operational framework supporting the company's global semiconductor assembly and test services. Heng directs the strategic deployment of resources and technology to enhance production capabilities across all packaging and testing functions. This leadership encompasses the oversight of wafer bumping, wafer probing, and wafer grinding processes, ensuring peak efficiency. Tan Heng's mandate includes the seamless integration of diverse IC packaging solutions, from leadframe to wafer level CSP. The President & Chief Operating Officer's focus on operational integrity guarantees the delivery of high-performance RF, analog, digital, and mixed-signal test services. By driving operational advancements, Tan Heng reinforces Unisem's position as a premier OSAT provider. Heng's strategic management ensures robust service delivery.

    Marita Erickson - President

    Marita Erickson, the President at Unisem, leads strategic initiatives focused on market expansion and service portfolio development within the semiconductor assembly and test sector. Erickson guides the company's approach to offering integrated packaging and test solutions, ensuring alignment with emerging technological trends. This leadership involves identifying new market opportunities and strengthening client partnerships globally. Marita Erickson's strategic vision supports the advancement of Unisem's capabilities in areas such as wafer bumping, wafer probing, and advanced IC packaging. The President's role is crucial in driving the company's growth and enhancing its competitive positioning in the OSAT industry. Erickson's focus on strategic market penetration ensures Unisem remains at the forefront of providing innovative solutions for RF, analog, digital, and mixed-signal testing. Erickson champions business development efforts.

    Michael McKerreghan - President & Director

    Michael McKerreghan, the President & Director at Unisem, provides critical leadership in shaping the company's strategic direction and corporate governance. McKerreghan oversees key initiatives aimed at enhancing Unisem's market presence and operational capabilities in semiconductor assembly and test services. This involves guiding the company's expansion into new technological frontiers and ensuring robust compliance frameworks. Michael McKerreghan's influence extends to fostering strategic alliances and driving innovation in packaging and testing solutions. The President & Director's role is pivotal in maintaining Unisem's commitment to quality and client satisfaction across its diverse service offerings. By directing strategic planning, Michael McKerreghan ensures the company's long-term sustainability and growth within the global OSAT landscape. McKerreghan's governance ensures ethical operations.

    Jasmine Liang - Vice President, Sales & Marketing

    Jasmine Liang, the Vice President, Sales & Marketing at Unisem, drives the company's commercial strategy and market engagement efforts. Liang leads the sales and marketing teams in promoting Unisem's comprehensive suite of semiconductor assembly and test services. This involves developing and executing go-to-market strategies for advanced packaging and testing solutions. Jasmine Liang's responsibilities include cultivating strong relationships with key clients and identifying new business opportunities within the global semiconductor industry. The Vice President, Sales & Marketing's focus is on expanding market share and reinforcing Unisem's brand reputation. By overseeing sales performance and marketing initiatives, Jasmine Liang ensures the effective communication of the company's value proposition in wafer bumping, wafer probing, and comprehensive test services. Liang directs revenue generation activities.

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    Frequently Asked Questions Regarding Unisem Top Executives and Leadership Team

    Who leads Unisem?
    Unisem is led by Bruno Guilmart (Chief Executive Officer), along with executives such as Kh Tan (Chief Operating Officer) and Kevin Khoo (Group Chief Operating Officer).
    Who is part of Unisem’s executive team?
    The executive team of Unisem includes leaders such as Bruno Guilmart (Chief Executive Officer), Kh Tan (Chief Operating Officer), Kevin Khoo (Group Chief Operating Officer) and other senior executives.
    How many executives does Unisem have?
    Unisem has 8 executives leading key business areas.
    What roles are included in Unisem’s leadership team?
    The leadership team of Unisem includes roles such as Chief Executive Officer, Chief Operating Officer, Group Chief Operating Officer, Group Chief Operating Officer, President & Chief Operating Officer.