In the rapidly advancing field of electronic devices, the construction of new facility is to produce new products on a new production line and market them as soon as possible. In order to achieve it, projects must often be started before clients have finalized all the required specifications. 

Obayashi Group's Total Project Management with the design-build delivery method is a system that enables flexible adjustment to modifications after the start of the project, which realizes a short construction period, low cost, and high quality at the same time.

Utilizing the design-build delivery method, planning, construction, maintenance and　management are integrated into the overall project.

To start up production quickly, we have to start the project without figuring out the number of total cost. To deal with it, Obayashi Group propose a new contract scheme which combines cost-plus-fee contract and lump-sum contract.

• We select the best frame structure and construction method to meet required schedule, quality and anti-seismic grade.
• If there are existing facilities in the same site, we will utilize　appropriate construction method to avoid interference with production activity.

• We will realize the best micro-vibration control system for micro-fabrication area with lower cost based on our accumulated database.

• We will select the most effective material with lower cost based on our outgassing simulation technology using our database containing a large amount of data of outgassing from material and equipment.

• We will construct totally optimized facility whose facility equipment, that should be the core, and building are well coordinated.

• For energy consuming facility, Obayashi will construct total energy saving system based on our experiences and technologies includes mini-environment concept.

The increasing fears of massive earthquakes, hazards such as tsunami following earthquakes, and floods caused by typhoons are impossible for a company to regard as causing zero damage. However, it is possible to minimize the damage by prior investigations and examinations. Obayashi Group conducts comprehensive and inclusive risk management for natural disasters, as well as man-made disasters, making the best use of the information to design a safe facility for minimal loss.

• Earthquake
• Wind Hazard
• Flood

• Fire
• Explosion,Terror
• Soil/groudwater contamination
• Information Security

For businesses in the manufacturing field, the massive damage caused by a disaster means long-term suspension of production. In recent years, various countermeasures have been considered for quick recovery after suspension of the production line due to a natural disaster, especially an earthquake. Obayashi Group sets earthquake resis-tance grades based on the client's Business Continuity Plan (BCP).

For important facilities, we recommend an earthquake resistance gradeⅢ that aims for the status above.

In recent years, the building base isolation system employed in apartments and hospitals is beginning to be applied in electronic device manufacturing facilities. Obayashi Group developed Japan's first base isolation technology in 1986, and since then, we have developed various base isolation systems.

To cope with not only earthquakes, but also daily micro-vibrations,　 We conduct micro-vibration simulations based on extensive experiences and the results of actual measurements accumulated through many projects.

We recommend HiCAP (High Stiffness Compact Aluminum Platform) for vibration-intolerant equipment, such as scanning steppers that require high rigidity in their installation. Since HiCAP is a 600 mm sq. panel, it demonstrates high layout flexibility, which makes it suitable for a clean room floor system. Also, it is easy to install it in an existing clean room and flexibly cope with layout modifications.

Obayashi Group pioneered the research and development of atmospheric environments by installing a clean room on our property in 1983. 

In 1986, we completed a super clean room (class1) inside our Technical Research Institute, where visualization of air currents and the analysis and evaluation of outgassing from building materials have been conducted.

Vibration is one of concerns when constructing a new production facility next　to an existing plant. With the "Yureban-nin (Patent registered)" construction vibration monitoring system, Obayashi Group carries out the construction while monitoring vibrations on the existing production line.

Effect of outgases released from building materials in a clean room is significant. Obayashi Group confirms that the permissible values of outgases concentration inside the clean room will be obtained by utilizing our outgases concentration projection pro-gram, Dyna SOC (Dynamic Simulation of Outgas Concentration) . Then, we clarify the optimal amount of costly no-outgassing building materials, in order to minimize the cost.

Since harmful gases, such as organic and ammonia, are being released from building materials in a clean room that has been just completed. We sometimes have to have their concentrations go down below allowable levels and the production start. Obayashi Group is striving for measures to rid outgassing of building materials by developing methods of construction and patented products, making the best use of our continued research and project experiences. We supply a clean room that enables a quick start of production right after completion, in other words, a prompt startup for our clients.

Major earthquakes are projected to hit the Kanto and Tokai areas in Japan anytime soon. In order to make production facilities earthquake-proof and keep damage to a minimum with no interuption, we propose earthquake resistant and vibration control up-grade for existing facilities. We install earthquake-resistant systems and vi-bration control devices in their optimal locations.

This is an base isolation system that protects specific production tools from earthquakes. Since this system is applied in minimum areas re-quired, the cost will also be kept at a minimum.

Obayashi Group helps to modify any ordinary rooms into a clean room. Also, even when there is a near-by existing clean room in operation, we execute quick modification construction with-out interruption in the existing production line.

Compared to ordinary office buildings, electronics device manufacturing facilities consume an enormous amount of energy. However, by adopting and combining appropriate energy-saving methods, such as cogeneration, it is possible to lower the environmental burden and reduce the running cost.

• 1　Aggressive utilization of CGS (Co-generation-system) power source
• 2　Utilization of CGS steam
• 3　Adoption of high efficiency equipment
• 4　Adoption of heat recovery system
• 5　Decreased transportation power
• 6　Adoption of energy-saving exhaust treatment system