Yageo Corporation · TWSE:2327
Yageo — Technical Presentation (March 2006)
20 slides from Yageo's technical presentation, March 2006
Slide 1: Thin Film Components
Thin Film Components High performance solutions for advanced applications
Slide 2: Benefits of Thin Film Components
Benefits of Thin Film Components Extremely stable, low noise and excellent high frequency performance High accuracy Low profile product Savings in board space and placement costs, when w.hamersma integrated 2
Slide 3: Thin film versus Thick Film
Thin film versus Thick Film THIN FILM THICK FILM Sputtering layer Screen printing Homogeneous films Grain containing pastes Low loss and highly stable materials Materials with standard performance Low parasitics High parasitics HF stable, low noise Parallel resonance’s Low prof
Slide 4: Thin film specification
Thin film specification (for internal information only) TCR Tolerance EN140401-801 Standard 50ppm 1.0% Beyschlag spec 40ppm Susumu spec 30ppm 0.5% 20ppm 10ppm 0.25% 0.1% 10E 100E 1K 10K 100K 1M -0.1% -10ppm -0.25% -20ppm -0.5% -30ppm w.hamersma -40ppm -50ppm -1.0% 4
Slide 5: Construction
Construction Covering layer Outside termination with marking (Ni-barrier and solderlayer) Side contact NiCr (sputtering) Ceramic w.hamersma Laser cutting Inside contacts (Ag) Resistor layer 5
Slide 6: Comparing technology
Thin Film Resistor Comparing technology Thin Film Thick Film Process characteristics • Trimming in material with • Trimming in material with good heat conduction poor heat conduction (glass) microcracks lasertrim lasertrim LI Product characteristics w.hamersma • Low TC, high lifetime stability • Sta
Slide 7: Comparing technology
Thin Film Resistor Comparing technology Thin Film Thick Film Process characteristics • Homogeneous films • Grain containing paste conducting particles paste (glass, ..) conducting alloy ceramic LI ceramic Product characteristics • Low TC, high lifetime stability • Standard TC, lifetime stability • l
Slide 8: Comparing technology: After Laser Trimming Process
Thin Film Resistor Comparing technology After Laser Trimming Process Thin Thin film film pattern pattern Thick Thick film film pattern pattern w.hamersma 8
Slide 9: The comparison of thin film and thick film resistors
The comparison of thin film and thick film resistors Normal 3rd Harmonic standard min.TCR High frequency current stress precision (ppm/c) stability characteristics Noise (non-linearity) ±0.1% Thin film ±0.5% ±25 Excellent Excellent Excellent Excellent ±1% w.hamersma Thick film ±5% ±100~250 Fair good
Slide 10: Thin film vs thick film R-chip stability test
Thin film vs thick film R-chip Stability Test resistance to rapid change Item soldering short time of Size heat overload bending temperature damp heat endurance ±0.5%+0.05 ±0.5%+0.05 Thin film All size ±0.5%+0.05R R R ±0.5%+0.05R ±0.5%+0.05R ±0.5%+0.05R ±1.0%+0.05 ±1.0%+0.05 R<1MR:±1.5%+0.1R R<1MR:±
Slide 11: Current Noise introduction
Current Noise introduction In general,voltage fluctuation will increase when DC current flows through resistor, which is called current noise. V 12 I= R noise Spec level level µV V 8 4 w.hamersma 0 10 100 1k 10k 100k 1M 10M Typical current noise levels as a function of rated resistance 11
Slide 12: Temperature Coefficient (TC)
Thin Film Resistor - TC R(%) R(%)55 44 A typical thin film resistor has a 33 Temperature Coefficient (TC) of 25 22 25 25 ppm ppm (often noted as TC25 or 25ppm, 11 50 50 ppm ppm official is ±25·10-6/K). It means the 00 resistance changes ±0.0025% with 100 100 ppm ppm each centigrade. This seems littl
Slide 13: Segments - applications
Thin Film Resistors - applications • SEGMENTS: • FUNCTIONS: • EDP: printers, mother- – voltage dividing boards, servers, servo of – signal processing HDD, scanners (amplifiers) – Gen.Ind: DC-DC power converters, test&measuring – Telecom: basestations, switching, acces systems Function – Automotive:
Slide 14: Application function: voltage dividing
Thin Film Resistor application function: voltage dividing 5V 3.5 V -> 2.5V Vin Vout • Typical applications: Vadjust – motherboards 124 Ω – printers 200 Ω – power supply (DC-DC conversion) – disk drive circuits The tolerance on the output of a voltage regulator is depending on • Benefits: - the IC, -
Slide 15: Application function: voltage dividing
Thin Film Resistor application function: voltage dividing A linear voltage regulator provides a stable voltage between Vout and Vadjust. By providing a stable voltage divider, a constant output voltage is quaranteed. For the Pentium® chips, Intel specify the 3V supply to vary by a maximum of 3%. •Th
Slide 16: Application function: signal processing, noise
Thin Film Resistor Application function: signal processing, noise A typical amplifier/signal processing circuit provides a load independent output voltage, protecting the integrety of the input signal. The quality of the opamp and surrounding resistors determine the output voltage quality. Thick fil
Slide 17: Application function: signal processing, life
Thin Film Resistor Application function: signal processing, life A typical amplifier circuit provides a fixed relation between input (Vin) and output (Vout). Vout = -R2/R1 · Vin The quality of the opamp and surrounding resistors determine the output voltage quality. Thick Thin film improvement R2 fi
Slide 18: Advantages for applications - overview
Thin Film Resistors Advantages for applications - overview Application Application Detail high low TC Low high narrow area stability noise pulse tole- over time load rance EDP • voltage regulation x x x in power supply Gen.Ind • DC-DC power x x x conversion, • test & measuring x x x x x Telecom • ba
Slide 19: Range
Thin Film Resistors - Range NOW . . 0 . Size 1206 l available in 4 sizes: Size 0805 Á 1206 - 0805 - 0603 and 0402 Size 0603 lTC / TOL: Size 0402 Á ± 25 ppm - 0.1 / 0.25 % w.hamersma Á ± 50 ppm - 0.5 % 19
Slide 20: Thin film R-Chip applications
Thin film R-Chip applications w.hamersma 20