GOVPH

Dr. Manolo Mena is recognized of his significant contribution in mining and metallurgical engineering. Dr. Mena developed processes, which are more efficient and co-effective in converting our natural resources into high value commodities. These include the leaching of chrysocholla- a fast becoming source of copper in the world- with ammonia- ammonium carbonate, an alternative to high temperature and energy-intensive processes, the use of aqueous oxidation which results into four-fold increase in gold recovery for ores not amenable of conventional cyanidation, the use of inhibitors which could reduce wear of grinding media, a considerable cost of mineral processing by 50% and the conversion of locally available materials into products such as sodium molybdate and sodium arsenate which are imported.

Sex: Male

Education:

• University of the Philippines, Diliman, Quezon City, M.S. in Metallurgical Engineering, 1979
• University of the Philippines, Diliman, Quezon City, B.S. in Metallurgical Engineering, 1977
• University of Utah, Utah, USA, Ph. D. in Metallurgy, 1983

Field of Specialization:

Mineral Processing, Hydrometallurgy, Process Metallurgy, Materials Science, Electrochemistry

Researches:

Mena, M., Natesh, R., Smith, J.M., Sellani, M.A., (1981) Analysis of defect structure in silicon, characterization of silicon-on-ceramics material
Materials Research Inc. Technical Report

Mena, M., Natesh, R., Smith, J.M., Sellani, M.A., (1981) Analysis of defect structure in silicon, Mobil Tyco EFG samples
Materials Research, Inc. Technical Report

Mena,M., Natesh, R., Sellani, M.A., (1981) Analysis of defect structure in silicon, single crystal and polycrystalline HEM material
Materials Research, Inc. Technical Report

Mena, M., Natesh, R., Smith, J.M., Sellani, M.A., (1981) Analysis of defect structure in silicon, characterization of Hamco and EFG solar cells
Materials Research Inc., Technical Report

Mena, M., Natesh, R., Smith, J.M., Sellani, M.A., (1981) Analysis of defect structure in silicon
Materials Research Inc. Technical Report

Mena, M. G., (1984) The dissolution characteristics of chrysocolla in NH3(NH4)ZC03 solutions
Philippine Engineering Journal

Mena, M.G., (1985) Analysis of defect structures in silicon solar cell materials
Philippine Engineering Journal Volume 6, No. 1

Mena, M., Olson, F.A., (1985) Leaching of chrysocolla with ammonia-ammonium carbonate solutions
Metallurgical Trans of the American Institute of Mining Engineers (AIME) Volume 16

Del Rosario, A., Mena, M., (1985) Corrosion of grinding media
Philippine Engineering Journal Volume 6, No. 2

Mena, M.G., (1997) Delamination in plastic packages
Philippine Engineering Journal Volume 18, No. 1

Mena, M.G., (1997) Thermal management in electronic packages
Philippine Engineering Journal Volume 18, No. 1

Papers Presented:

• Materials Science for Semiconductor Engineers , AMI Philippines, Allegro Microdevices, Analog Devices, Texas Instruments Philippines, Amkor Anam Phillippines
• Lead Finish Technology, Intel Phil. Mfg., Incorporated
• IC Packaging Technology , AMI Phil., Inc
• Optical Microscopy and Metallography, Intel Philippine Manufacturing,Inc.
• Technical Writing & Presentation Skills , Intel Phil., Analog Devices Phil., Inc
• Materials Science for Semiconductor Engineers , Intel Penang BDH, SDN, Malaysia
• Delamination in Plastic Packages, Intel Philippines, Texas Instruments, Analog Devices Philippines, ADSC, ADWIL
• Intermetallics in IC Packages, Intel Phil., Texas Instruments, Analog Devices Phil., ADSC, ADWIL
• Introduction to Reliability Enggineering , Analog Devices Philippines
• Failure Mechanism Methodology, ADGT, ADSC, ADWIl
• Analysis of Defect Structure in Photovoltaic Silicon, Technical Report:Under JPL Contract No. 955676, 1st Project Integration Meeting of the Department of Energy Low-Cost Solar Array Project
• The Dissolution Characteristics of Chrysocolla in Ammonia-Ammonium Carbonate Solutions, Doctoral Dissertation, Annual American Institute of Mining Engineers (AIME) Meeting in Atlanta, Georgia
• Aqueous Oxidation of Gold-Bearing Sulfides, 13th Congress of the Council of Mining & Metallurgical Institution
• Thiourea Leaching of Gold, Gold '87, Manila Philippines
• Corrosion of Grinding Media, ASEAN Symposium on Corrosion, Manila, Philippines
• Capability Studies on XRF Tin Thickness Measurements, SPIE Conference, San Jose, California
• Flow Characteristics of Molding Compound in PDIP Devices, SPIE Conference, Boston
• Crystallization of Vitreous Seal Glass in Hermetic Packages, 43rd Electronics Components and Technology Conference, Orlando, Florida
• Enhanced Ink Markability, 43rd Electronics Components Technology Conference, Orlando, Florida
• Pre-treatment of Refractory Gold by Atmospheric Alkaline Oxidation , ASEAN Regional Symposium of Metallurgy, Bandung, Indonesia
• Rationalization of Ball Shear Strengths, 44th Electronics Component and Technology Conference, Washington, DC
• Mobile Ion-Induced Capacitance Effect on 16 Meg Flash Devices , 5th Intel Manila Technical Symposium,Manila
• Failure Mechanism Methodology -An Integrated Approach to Process Management, 3rd Analog Devices Technical Symposium, Manila
• Elimination of Assembly Induced Package Cracks in Plastic SOIC's, 46th Electronics Components and Technology Conference, Orlando, Florida
• Moisture and Thermal Degradation of Cyanate-Ester-based Die Attach Materials, 47th Electronics Components and Technology Conference, San Jose, California
• Process Management Using FMM, ADI General Technical Conference
• ADI-FMM, A Customized FMEA for Process Management in the IC Packaging and Test Industry, ASEMEP Symposium, Manila
• Non-Destructive Ultrasonic Pulse-Echo Method Determination of Bulk Wave Velocities & Elastic Moduli in Metral Matrix Composites, 2nd Pacific Asian Conference on Mechanical Engineering, Manila
• Materials Science Research in the Philippines, ASEAN Symposium on Materials Science and Technology, Hanoi, Vietnam
• Solderability Implications of Sn-Pb solders on Nickel Substrates, National Research Council of the Philippines (NRCP) Annual Meeting, Manila
• IC Packaging Education at the University of the Philippines, 50th Electronics Components and Technology Conference, Las Vegas, Nevada
• ADI-FMM, A Customized FMEA for Process Management in the IC Packaging and Test Industry, 3rd Electronic Packaging Technology Conference, Singapore
• Desorption Characteristics of a 260 C Reflow Compliant Moulding Compound, 13th National Symposium, ASEMEP, Manila
• Moisture Desorption Characteristics of Electronic Moulding Compounds, Society of Metallurgical Engineers Technical Symposium, Manila Intercontinental Hotel
• Acoustic Imaging of Capped MEMs Encapsulated in Plastic , 14th National Symposium, ASEMEP, Manila
• Wafer Thinning Solutions for Capped MEMs , 56th Electronics Components and Technology Conference, San Diego, California

Awards:

• Most Outstanding Engineering Professor, University of the Philippines, 1991
• Most Outstanding Metallurgical Engineer, Professional Regulations Commission, 1996
• Most Outstanding Young Scientist of the Philippines, National Academy of Science and Technology, Philippines , 1986
• Graduate Division Fellow, UP College of Engineering, 1979
• Cum Laude, University of the Philippines, 1977
• President's Medal for Academic Excellence, University of the Philippines, 1977
• Government Scholar, University of the Philippines, 1972-1977
• Leadership Awardee, Gerry Roxas Awardee, 1972
• 1st Place, Biological Sciences , Regional Science Fair, Metro Manila Region, 1971
• 3rd Place, Biological Sciences, National Science Fair, 1971
• Research Achievement Award for Engineering and Industrial Research, NRCP , 1988