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Company · Hsinchu · Taiwan

Epistar (Taiwan)

epistar.com.tw/index_en.phpROR OpenAlex
Research works
118
◆ 1% vs 2018-21
Citations
3.1k
26.4 per fractional work
Top-10% rate
8.9%
all institutions 10.0%
Open access
20%
world 40%
International
22%
world 18%
Epistar (Taiwan)

Not ranked overall: Epistar (Taiwan) is under the volume floor below which an excellence rate is noise. Not ranked is not the same as ranked last.

Which fields of science does Epistar (Taiwan) work in?

In all years, 80% of research at Epistar (Taiwan) is in Physical Sciences, 10% in Health Sciences. Its largest fields are Physics and Astronomy (34%), Engineering (23%), Materials Science (21%). It does 1.9× the world's share of Physical Sciences.

Physical Sciences: 95 fractional works · 80.3% of its workPhysics and Astronomy: 40 fractional works · 33.7% of its workCondensed Matter Physics: 26 fractional works · 21.8% of its workAtomic and Molecular Physics, and Optics: 14 fractional works · 11.5% of its workRadiation: 0 fractional works · 0.4% of its workEngineering: 27 fractional works · 23.1% of its workElectrical and Electronic Engineering: 15 fractional works · 12.9% of its workBiomedical Engineering: 5 fractional works · 4.6% of its workMechanics of Materials: 3 fractional works · 2.7% of its workCivil and Structural Engineering: 1 fractional works · 0.7% of its workIndustrial and Manufacturing Engineering: 1 fractional works · 0.5% of its workControl and Systems Engineering: 0 fractional works · 0.4% of its workAerospace Engineering: 0 fractional works · 0.3% of its workComputational Mechanics: 0 fractional works · 0.3% of its workMechanical Engineering: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workMaterials Science: 25 fractional works · 20.9% of its workMaterials Chemistry: 14 fractional works · 11.7% of its workElectronic, Optical and Magnetic Materials: 9 fractional works · 7.9% of its workSurfaces, Coatings and Films: 1 fractional works · 1.1% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 1 fractional works · 1.0% of its workGlobal and Planetary Change: 1 fractional works · 0.9% of its workSmaller subfields together: 0 fractional works · 0.1% of its workComputer Science: 1 fractional works · 1.0% of its workComputer Vision and Pattern Recognition: 0 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.6% of its workChemistry: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workEnergy: 0 fractional works · 0.1% of its workHealth Sciences: 12 fractional works · 10.3% of its workMedicine: 11 fractional works · 9.0% of its workOncology: 2 fractional works · 2.0% of its workSurgery: 1 fractional works · 1.2% of its workRadiology, Nuclear Medicine and Imaging: 1 fractional works · 1.0% of its workPulmonary and Respiratory Medicine: 1 fractional works · 0.7% of its workEpidemiology: 1 fractional works · 0.6% of its workPsychiatry and Mental health: 1 fractional works · 0.6% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.6% of its workEmergency Medicine: 0 fractional works · 0.4% of its workGenetics: 0 fractional works · 0.3% of its workPathology and Forensic Medicine: 0 fractional works · 0.3% of its workReproductive Medicine: 0 fractional works · 0.3% of its workRheumatology: 0 fractional works · 0.2% of its workCardiology and Cardiovascular Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.8% of its workHealth Professions: 1 fractional works · 0.7% of its workSpeech and Hearing: 0 fractional works · 0.3% of its workPharmacy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workDentistry: 1 fractional works · 0.6% of its workPeriodontics: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workSocial Sciences: 7 fractional works · 5.8% of its workSocial Sciences: 4 fractional works · 3.0% of its workSociology and Political Science: 2 fractional works · 1.5% of its workDemography: 1 fractional works · 0.5% of its workCommunication: 0 fractional works · 0.4% of its workAnthropology: 0 fractional works · 0.3% of its workEducation: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workArts and Humanities: 2 fractional works · 1.5% of its workLiterature and Literary Theory: 1 fractional works · 0.9% of its workConservation: 0 fractional works · 0.3% of its workPhilosophy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workBusiness, Management and Accounting: 1 fractional works · 0.5% of its workStrategy and Management: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.4% of its workEconomics and Econometrics: 0 fractional works · 0.4% of its workDecision Sciences: 0 fractional works · 0.2% of its workPsychology: 0 fractional works · 0.2% of its workLife Sciences: 4 fractional works · 3.6% of its workBiochemistry, Genetics and Molecular Biology: 2 fractional works · 1.9% of its workMolecular Biology: 2 fractional works · 1.3% of its workCancer Research: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workAgricultural and Biological Sciences: 1 fractional works · 0.9% of its workFood Science: 1 fractional works · 0.5% of its workSmaller subfields together: 1 fractional works · 0.5% of its workNeuroscience: 0 fractional works · 0.4% of its workImmunology and Microbiology: 0 fractional works · 0.3% of its workImmunology: 0 fractional works · 0.3% of its workALL ITS WORKEpistar (Taiwan)118fractional works, all years
Life Sciences4%Physical Sciences80%Health Sciences10%Social Sciences6%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in all years. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 22 fields, with their numbers
    1. Physics and Astronomy4033.7%
    2. Engineering2723.1%
    3. Materials Science2520.9%
    4. Environmental Science11.0%
    5. Computer Science11.0%
    6. Chemistry00.2%
    7. Mathematics00.1%
    8. Earth and Planetary Sciences00.1%
    9. Energy00.1%
    1. Medicine119.0%
    2. Health Professions10.7%
    3. Dentistry10.6%
    1. Social Sciences43.0%
    2. Arts and Humanities21.5%
    3. Business, Management and Accounting10.5%
    4. Economics, Econometrics and Finance00.4%
    5. Decision Sciences00.2%
    6. Psychology00.2%
    1. Biochemistry, Genetics and Molecular Biology21.9%
    2. Agricultural and Biological Sciences10.9%
    3. Neuroscience00.4%
    4. Immunology and Microbiology00.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.27× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.24× its world share, 0 worksBiochemistry, Geneti…Immunology and Microbiology: 2.58× its world share, 0 worksImmunology and Micro…Neuroscience: 0.55× its world share, 0 worksNeuroscienceChemistry: 0.55× its world share, 0 worksChemistryComputer Science: 0.07× its world share, 0 worksComputer ScienceEngineering: 1.63× its world share, 3 worksEngineeringMaterials Science: 1.05× its world share, 0 worksMaterials SciencePhysics and Astronomy: 4.55× its world share, 1 worksPhysics and AstronomyHealth Professions: 1.80× its world share, 1 worksHealth ProfessionsMedicine: 1.08× its world share, 3 worksMedicineArts and Humanities: 2.69× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 1.17× its world share, 0 worksBusiness, Management…Decision Sciences: 0.54× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 1.51× its world share, 0 worksEconomics, Econometr…Social Sciences: 1.06× its world share, 2 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Physics and Astronomy, 4.5×. Every wedge is a field page.

All 16 fields, with their numbers
  1. Physics and Astronomy4.55×1 works
  2. Arts and Humanities2.69×1 works
  3. Immunology and Microbiology2.58×0 works
  4. Health Professions1.80×1 works
  5. Engineering1.63×3 works
  6. Economics, Econometrics and Finance1.51×0 works
  7. Business, Management and Accounting1.17×0 works
  8. Medicine1.08×3 works
  9. Social Sciences1.06×2 works
  10. Materials Science1.05×0 works
  11. Neuroscience0.55×0 works
  12. Chemistry0.55×0 works
  13. Decision Sciences0.54×0 works
  14. Agricultural and Biological Sciences0.27×0 works
  15. Biochemistry, Genetics and Molecular Biology0.24×0 works
  16. Computer Science0.07×0 works

Who are the top researchers at Epistar (Taiwan)?

Ranked on the quality score, M. J. Jou, M. H. Hsieh and Ta-Cheng Hsu lead among researchers whose main affiliation is Epistar (Taiwan).

  1. 1 M. J. Jou Taiwan · #1,006,380 worldwide 1.6k citations · 47 works
  2. 2 M. H. Hsieh Taiwan · #2,270,563 worldwide 512 citations · 16 works
  3. 3 Ta-Cheng Hsu Taiwan · #2,986,192 worldwide 586 citations · 29 works
  4. 4 T. C. Hsu Taiwan · #3,625,387 worldwide 468 citations · 21 works
  5. 5 Schang Jing Hon Taiwan · #4,398,461 worldwide 130 citations · 17 works
  6. 6 Yu-Yao Lin Taiwan · #4,711,735 worldwide 73 citations · 15 works
  7. 7 Chun-Lung Tseng Taiwan · #4,810,752 worldwide 105 citations · 17 works
All ranked researchers at Epistar (Taiwan)

What are the most cited papers from Epistar (Taiwan)?

The most cited paper from Epistar (Taiwan) is "Results of Treatment of 385 Patients With Peritoneal Surface Spread of Appendiceal Malignancy" (Paul H. Sugarbaker, David Wen-Wei Chang, 1999), with 605 citations. Next come "Enhancing the output power of GaN-based LEDs grown on wet-etched patterned sapphire substrates" (242) and "Advantages of blue InGaN multiple-quantum well light-emitting diodes with InGaN barriers" (235).

Most cited papers
#PaperReleasedCitations
1 Results of Treatment of 385 Patients With Peritoneal Surface Spread of Appendiceal Malignancy Paul H. Sugarbaker, David Wen-Wei Chang · Annals of Surgical Oncology Dec 1999 605
2 Enhancing the output power of GaN-based LEDs grown on wet-etched patterned sapphire substrates Ya‐Ju Lee, Jaeyeon Hwang, T. C. Hsu et al. · IEEE Photonics Technology Letters May 2006 242
3 Advantages of blue InGaN multiple-quantum well light-emitting diodes with InGaN barriers Yen‐Kuang Kuo, Jih‐Yuan Chang, Miao‐Chan Tsai et al. · Applied Physics Letters 6 Jul 2009 235
4 High-transparency Ni/Au ohmic contact to p -type GaN Jinn‐Kong Sheu, Yan‐Kuin Su, G. C. Chi et al. · Applied Physics Letters 19 Apr 1999 217
5 Hole injection and efficiency droop improvement in InGaN/GaN light-emitting diodes by band-engineered electron blocking layer C. H. Wang, Changchun Ke, Chia‐An Lee et al. · Applied Physics Letters 27 Dec 2010 212
All 60 most cited papers, with filters and sorting

Which keywords describe research at Epistar (Taiwan)?

By fractional works in all years, weighted toward what it does more of than the world: Nanowires, Semiconductors, Band Parameters, GaN, Solid-State Lighting, III-Nitrides, Light-Emitting Diodes and Semiconductor.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in all years in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Nanowires49▲ 177×4 topics
  2. Semiconductors40▲ 128×3 topics
  3. Band Parameters37▲ 252×2 topics
  4. GaN28▲ 461×2 topics
  5. Solid-State Lighting26▲ 229×2 topics
  6. III-Nitrides26▲ 495×1 topic
  7. Light-Emitting Diodes26▲ 171×1 topic
  8. Semiconductor22▲ 56×4 topics
  9. Photodetectors21▲ 187×2 topics
  10. Nanostructures15▲ 26×4 topics
  11. Ferromagnetism12▲ 148×1 topic
  12. Thin Films12▲ 39×5 topics
  13. Zinc Oxide12▲ 153×1 topic
  14. Photovoltaics12▲ 40×3 topics
  15. Quantum Dots11▲ 59×2 topics
  16. Excitons11▲ 116×1 topic
  17. Single-Photon Source11▲ 116×1 topic
  18. Epitaxial Growth10▲ 104×2 topics
  19. Crystal Growth9▲ 23×3 topics
  20. Power Devices9▲ 105×2 topics
  21. Gallium Oxide9▲ 269×1 topic
  22. Ultrawide Bandgap9▲ 269×1 topic
  23. Solar Cells6▲ 16×5 topics
  24. Atomic Layer Deposition4▲ 26×1 topic
  25. High-k Dielectrics4▲ 26×1 topic
  26. Biosensors4▲ 5.5×6 topics
  27. X-ray Photoelectron Spectroscopy3▲ 19×2 topics
  28. Coatings3▲ 29×1 topic
  29. Nanoindentation3▲ 30×1 topic
  30. Electron Sources2▲ 269×1 topic
  31. Photocathodes2▲ 269×1 topic
  32. Plasmonics2▲ 26×2 topics
  33. Flexible Electronics2▲ 13×3 topics
  34. Amorphous Oxide Semiconductors2▲ 38×1 topic
  35. Thin-Film Transistors2▲ 38×1 topic
  36. Photonic Crystals2▲ 11×2 topics
  37. Electronics2▲ 15×2 topics
  38. Optical Modulators2▲ 7.2×2 topics
  39. Energy Conversion2▲ 9.2×2 topics
  40. Optical Interconnects2▲ 18×1 topic

Which research topics does Epistar (Taiwan) publish most on?

By volume in 2022-now: GaN-based semiconductor devices and materials, Thin-Film Transistor Technologies, Cancer Immunotherapy and Biomarkers and Immunotherapy and Immune Responses.

GaN-based semiconductor …1GaN-based semiconductor devices and materials: 1 fractional worksThin-Film Transistor Tec…1Thin-Film Transistor Technologies: 1 fractional worksCancer Immunotherapy and…0Cancer Immunotherapy and Biomarkers: 0 fractional worksImmunotherapy and Immune Responses: 0 fractional worksEarly Modern Spanish Literature: 0 fractional worksSpanish Literature and Culture Studies: 0 fractional worksHistorical Art and Architecture Studies: 0 fractional worksSupply Chain Resilience and Risk Management: 0 fractional worksSociology and Education in Brazil: 0 fractional worksCAR-T cell therapy resea…0CAR-T cell therapy research: 0 fractional works
Condensed Matter PhysicsElectrical and Electronic EngineeringOncologyImmunology4 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 GaN-based semiconductor devices and materials Condensed Matter Physics 1 works
  2. 2 Thin-Film Transistor Technologies Electrical and Electronic Engineering 1 works
  3. 3 Cancer Immunotherapy and Biomarkers Oncology 0 works
  4. 4 Immunotherapy and Immune Responses Immunology 0 works
  5. 5 Early Modern Spanish Literature Literature and Literary Theory 0 works
  6. 6 Spanish Literature and Culture Studies Literature and Literary Theory 0 works
  7. 7 Historical Art and Architecture Studies Conservation 0 works
  8. 8 Supply Chain Resilience and Risk Management Strategy and Management 0 works
  9. 9 Sociology and Education in Brazil Sociology and Political Science 0 works
  10. 10 CAR-T cell therapy research Oncology 0 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available19.8%not open80.2%

World: 40% of research is openly available.

with international co-authors21.5%domestic only78.5%

World: 18% is written across borders.

How has Epistar (Taiwan)'s research output changed?

Output in 2022-2025 was 1% lower than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Epistar (Taiwan) as a percentage of every work published that year, 0.000031% in 2024.

still counting0.00020%0.00040%0.00060%Epistar (Taiwan)0.000064% in 20251990200020102020

Fractional works of Epistar (Taiwan) over all fractional works that year. How the balance of science has shifted.

Other research institutions in Hsinchu

All research institutions in Hsinchu

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

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