Toolmaker

Job Purpose

To fabricate, repair, and maintain precision semiconductor tooling (molds, trim & form, fixtures), while supporting engineering, customer requirements, DFM activities, project execution, and subcontractor coordination.

Key Responsibilities

1. Tooling Fabrication & Maintenance

• Manufacture, assemble, and repair:

o IC package molds

o Trim & form tools

o Precision fixtures and jigs

• Perform machining processes:

o Grinding, milling, EDM, polishing

• Ensure tools meet required tolerance, quality, and durability

• Conduct preventive maintenance and support production issues

2. Technical Communication

• Support communication between:

o Internal teams (Engineering, Production, QA)

o Customers (via Engineer / Supervisor)

• Review technical drawings and specifications

• Provide feedback on:

o Tool feasibility

o Repair status

o Tool issues during production

• Update progress and highlight risks or delays

✅ Note: Compared to Senior role, communication is more supporting role, not leading.

3. Design for Manufacturability (DFM)

• Assist in DFM evaluation of tooling design

• Highlight manufacturability concerns such as:

o Tight tolerance issues

o Difficult machining areas

o Wear-prone components

• Suggest improvements for:

o Easier fabrication

o Maintenance access

o Longer tool life

• Work with engineers to implement design changes

4. 📊 Project Support / Planning

• Support tooling project activities:

o Fabrication schedule

o Assembly timeline

o Trial preparation

• Track assigned tasks and ensure deadlines are met

• Provide status updates to supervisor or project engineer

• Assist in tool buy-off and qualification

✅ Note: Responsible for execution, not full project ownership.

5. Subcontractor / Vendor Handling

• Liaise with subcontractors for:

o Machining

o Heat treatment

o Surface coating

• Follow up on:

o Delivery status

o Quality issues

• Assist in inspection and acceptance of outsourced parts

• Report non-conformance and coordinate corrective actions

6. Troubleshooting & Improvement

• Support root cause analysis on:

o Tool defects (flash, misalignment, crack, wear)

• Carry out rework/modification to improve:

o Tool performance

o Yield

o Cycle time

• Implement continuous improvement actions

Requirements & Qualifications

Education

• Certificate / Diploma in Tool & Die, Mechanical, or Precision Engineering

Experience

• 2–4 years of experience in tooling (semiconductor / precision industry preferred)

🛠️ Technical Skills

• Hands-on machining:

o Grinding, milling, EDM

• Ability to read:

o Engineering drawings

o GD&T

• Knowledge of:

o Tool materials and treatment

o Mold / die structure basics