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80layer åt testaren PCB -kort

80 lager ATE -test PCB -kort hänvisar till kretskortet med 80 lager för ATE -testutrustning . ATE är förkortningen av automatisk testutrustning .

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Beskrivning

80 layer ATE test pcb board refers to the circuit board with 80 layers for ATE test equipment. ATE is the abbreviation of Automatic Test Equipment. In the semiconductor industry, ATE refers to the integrated circuit (IC) automatic testing machine, which is used to test the integrity of integrated circuit functions, and is the final process of integrated circuit production to ensure the quality of integrated circuit Tillverkning . Med den kontinuerliga utvecklingen av halvledartillverkningsprocessen blir kraven för ATE-testare högre och högre . Denna typ av kort tillhör hög multi-skikt och hög precisionskort .}

Nyckelpunkt

The superposition of multi-sheet core plate and PP is prone to problems such as layering, slide and drum residue when pressing. Because of the large number of layers, the expansion and shrinkage control and size coefficient compensation cannot keep consistent. The thin inter layer insulation layer is easy to lead to the failure of inter layer reliability test. Multi-layer boards adopt high Tg or other special boards materials. The roughness of drilling holes made of different materials is different, which increases the difficulty of removing the glue residue in the holes. The high-density multi-layer board has high hole density, low production efficiency, and is easy to break the tool. The hole edge between holes of different networks is too close, which will leda till CAF -effektproblemet .

Även om det finns många svårigheter, har våra tekniker, genom obegränsade ansträngningar och tekniskt genombrott, testat 80 lager åt testkretskortet .