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Contribute to IC substrates as thinner and smaller and low warpage.
Semiconductor Device Materials
- Low CTE Ultra-thin IC substrate materials R-G515S (Low CTE glass cloth), R-G515E (Normal glass cloth)
- High elasticity Low CTE Ultra-thin IC substrate materials R-151YE／R-1515E
- Low CTE IC substrate materials Designed to Improve Reliability R-1515V
- High elasticity Low CTE IC substrate materials R-1515W
- Low CTE IC substrate materials R-1515A
- There might be some differences in UL certification conditions between the existing part numbers and the new part numbers. Please contact a sales representative in charge or this form for the detail.
Any letters with parentheses ( ) at the end of a part number are for identification code in our company and are not included in the part numbers registered for UL certification.
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General properties
| Item | Test method | Condition | Unit | R-1515V | R-1515K | |
| Glass transition temp(Tg) | DMA*² | A | °C | 260 | 260 | |
| CTE x-axis / y-axis | α1 | Internal method | A | ppm/°C | 3-5 | 7 |
| Dielectric constant(Dk)*¹ | 1GHz | IPC-TM-650 2.5.5.9 | C-24/23/50 | － | 4.4 | 4.6 |
| Dissipation factor(Df)*¹ | 0.016 | 0.015 | ||||
| Flexural modulus*¹ | JIS C 6481 | 25°C | GPa | 30 | 27 | |
| 250°C | 14 | 12 | ||||
| Item | Test method | Condition | Unit | R-1515W | R-1515A | |
| Glass transition temp(Tg) | DMA*² | A | °C | 250 | 205 | |
| CTE x-axis / y-axis | α1 | Internal method | A | ppm/°C | 9 | 12 |
| Dielectric constant(Dk)*¹ | 1GHz | IPC-TM-650 2.5.5.9 | C-24/23/50 | － | 4.8 | 4.8 |
| Dissipation factor(Df)*¹ | 0.015 | 0.015 | ||||
| Flexural modulus*¹ | JIS C 6481 | 25°C | GPa | 35 | 27 | |
| 250°C | 21 | 10 | ||||
| Item | Test method | Condition | Unit | R-G515S | R-G515E | R-151YE R-1515E | |
| Glass transition temp(Tg) | DMA*² | A | °C | 220-240 | 220-240 | 270 | |
| CTE x-axis / y-axis | α1 | Internal method | A | ppm/°C | 4-6 | 6-8 | 9 |
| Dielectric constant(Dk)*¹ | 1GHz | IPC-TM-650 2.5.5.9 | C-24/23/50 | － | 4.2 | 4.4 | 4.7 |
| Dissipation factor(Df)*¹ | 0.008 | 0.008 | 0.011 | ||||
| Flexural modulus*¹ | JIS C 6481 | 25°C | GPa | 28 | 24 | 33 | |
| 250°C | － | － | 18 | ||||
The sample thickness is 0.1 mm.
*1 0.8mm
*2 Measurement in tensile mode. R-1515W, R-1515A: Measurement in bending mode.
The above data are typical values and not guaranteed values.
Our Halogen-free materials are based on JPCA-ES-01-2003 standard.
Contain; Chlorine:≤0.09wt%(900ppm), Bromine:≤0.09wt%(900ppm),
Chlorine+Bromine:≤0.15wt%(1500ppm)
Related information
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