Stress Level Test
Depaneling with a router reduces mechanical stress during cutting.
Routing eliminates problems of flex cracking in ceramic capacitors and pattern peeling that may occur with conventional methods such as hand breaking and press cutting.
Stress level comparison and stress limit of ceramic capacitor
| Depaneling Method | Stress | Stress limit of ceramic capacitor | Result |
| Hand Breaking V-Score, perforations | 6,000 to 10,000 µε | 800 to 1,800 µε | NG |
| Press Cut | 1,000 to 2,000 µε | 800 to 1,800 µε | NG |
| PCB Router | 50 to 200 µε | 800 to 1,800 µε | Good |
<Test Condition>
PCB Router - SAM-CT23NJ
Dust Collector - VNA-30
Spindle - 50,000 rpm
Router bit - 1.5 mm diameter Sayaka router bit
Cut Speed - 15 mm/sec
Sample PCB - 150 x 150 x 1.0 mm Glass Epoxy
Fixture - Custom fixture
<Measuring Equipment>
Equipment - Hioki 8804
Amplifier - Kyowa Electronics Instruments DPM-712B
Strain Gauge - Kyowa Electronics Instruments KFG-2-120-L1-11L1M2R
Sayaka PCB Router Product Overview
