San Diego Industrial Process FurnacesOvens Mfrs 4682 Iowa St Sigma Systems manufactures industrial temperature and humidity chambers and thermal platforms (hold/cold plates). Sigma temperature test products come in a variety of sizes and can be customized to fit your needs. San Diego CA Industrial Process FurnacesOvens Mfrs Sigma Systems Corp www.sigmasystems.com temperature chambers temperature plates thermal platforms platforms hot cold hot plates cold plates thermal plates vacuum space chambers spot cooling heating chucks wafer testing test process equipment probing chip simulation temperature chambers temperature plates thermal platforms platforms hot cold hot plates cold plates thermal plates vacuum space chambers spot cooling heating chucks wafer testing test process equipment probing chip simulation Business Reviews Sigma Systems Corp Testimonials