Berkeley Lab
Bringing Science Solutions to the World

Assembly Shop



The assembly shop is staffed with Mechanical Technicians that offer a wide range of technical services. The services include vacuum leak inspection, laser engraving, mechanical assembly and testing. For more information and capabilities please contact Lucian Sweitzer at 510-486-7680. To submit work requests please email

Undulator Measurement Facility (UMF)


Magnetic Measurements

Hall probe measurement bench (7.7m, 10 tons) in the LBNL built 1200 square-feet temperature controlled (+/-0.18 F averaged over 2h) Undulator Measurement Facility. The Hall probe can travel over 6 m with an error of less than 10 microns in the transverse directions.

Location: Building 77.

The 1200 square-feet Undulator Measurement Facility (UMF) allows us to characterize the magnetic fields produced by undulators. The UMF features a temperature controlled environment (+/-0.18 F averaged over 2h) and Hall probe measurement bench (7.7m long, 10 tons). The temperature stability associated to the high quality workmanship of the bench allows the Hall probe to travel over 6 m with an error of a less than 10 microns in the transverse directions.

Weld Shop


  • Location: Building 77
  • The Weld Shop employs several different processes to join components together for large and small fabrication projects. The processes include stick welding (SMAW), tungsten torch welding (GTAW), wire feed welding (GMAW), oxy/acetylene, and carbon arc plasma cutting. Typical materials used include steel, stainless steel, and aluminum.

Composites Shop

  • The Composites Shop does research and development of composite materials, primarily for the optimization of structures with low mass and high stability. The shop has specialized expertise in the design and fabrication of Carbon Fiber Reinforced Plastics.
  • Composites Capabilities

Microsystems Laboratory


The Microsystems Laboratory (MSL) is a semiconductor processing facility specializing in the fabrication of various types of radiation detectors and integrated electronics on high resistivity silicon. The facility consists of 700 sq. ft. of Class 10 clean room space with environmental control of +/-1 F and +/- 2% relative humidity. Process capabilities include high temperature oxidation, deposition of thin films, and diffusion of impurity dopants, dry plasma etching, wet chemical etching and cleaning operations, and photolithography.

Semiconductor Detector Laboratory

The Berkeley Lab’s Engineering Division Semiconductor Detector Laboratory provides the infrastructure and expertise for the development and production of semiconductor-based radiation detectors and detection systems. The facility consists of a class 100 clean room, class 10,000 processing and testing area, and a mechanical processing area. We use mechanical and wet chemical processing, thin film deposition, photolithography, wire bonding, and detector characterization to process Ge, CdZnTe, and SI. Several configurations are used including, diffused, implanted, surface barrier, and amorphous contacts, including strip, orthogonal strip, and point contact.

Sheet Metal Shop


  • Location: Building 77
  • The Sheet Metal Shop offers precision cutting, forming, and joining of a variety of thin materials including, steel, stainless steel, copper, brass, aluminum, tantalum, and titanium. The shop is equipped with various tools including a metal spinning lathe and glove-box welding system for producing complex shapes and delicate welds in a clean atmosphere.

Researcher Shop

Sharp Lathe

  • Location: Building 77
  • Available to: Interested researchers/interns/postdocs and others who have reviewed the Researcher Shop General Policy and Researchers Shop Safety Policy, and have been qualified and authorized by designated Central Fabrication personnel.
  • Our researcher shop is available for qualified, authorized researchers and students to complete relatively simple machining projects. The shop is equipped with a Bridgeport milling machine, engine lathe, tool room lathe, drill press, and other tools. An experienced machinist oversees the researcher shop, offering setup and/or machining advice or direction if needed.

Technician’s Machine Shop


Yasda YBM 950 milling machine

  • Location: Building 77
  • Our technician’s machine shop, offers several lathes, milling machines, drill presses and ancillary equipment for the convenience of the Division’s qualified mechanical technicians.

Machine Shop

  • Location: Building 77
  • Behind the Scenes Video
  • Our fabrication machine shop, often referred to as “the shops,” produces components or features ranging from several microns to several meters in size using a broad range of fabrication technologies. We offer directly applicable experience, accessible staff, and a broad range of services.