hhcircuits

  Impedance Control PCB   , pcb circuit strictly control the trace width, thickness and dielectric thickness, pcb circuit tolerance of impedance trace ≤± 5% is better for impedance matching, pcb circuit apply to High-frequency/high-speed devices and 5G communication equipment. HUIHE CIRCUITS Impedance Control PCB   has passed ISO9001 / ISO13485 /IATF16949 / UL /RoHS / REACH certification.   Classification Of pcb impedance Characteristic Impedance: (Characteristic Impedance) When two conductors are insulated from the earth, the impedance between each other. Differential Impedance: (Differential Impedance) the measured impedance between two conductors. Factors Affecting impedance in pcb A: The dielectric constant (TMr) is determined by the raw material. (Plate, prepreg) B: Circuit thickness (T): Determined by raw materials and process capability. C: Line width (w): Determined by the customer's design manuscript and process capability. D: Media thickness (H): Determined...

  Number of layers: 8 Surface finish: ENIG Base material: FR4 Outer Layer W/S: 4/3.5mil Inner layer W/S: 4/3.5mil Thickness: 1.2mm Min. hole diameter: 0.2mm Special process: impedance control+half hole   Advantages Of 8 layer enig pcb Own lamination process to convenient production for Multilayer PCB and shorten the lead time. Jiangxi facility is environmental-friendly approved by the government . Famous raw materials brand, Kingboard, Shengyi, ITEQ, Taiyo, Guangxin. Highly automated production line with AIO Optical Scanning, Electroplating Automatic Line, High-speed flying probe test machines and inkjet printer. Engineers with more than 15 years of experience Customers located in more than 20 countries, the common choice of 500 high-end companies. Perfect quality inspection system Professional R&D team can make all kinds of special boards. Quick turn, prototype, medium or large batches can be produced to meet the needs of different customers. Quick response to quotes. ...

Number of layers: 6 Surface finish: LF-HASL Base material: FR4 Outer Layer W/S: 11/6mil Inner layer W/S: 16/5mil Thickness: 1.6mm Min. hole diameter: 0.3mm   Advantages Of 6 layer pcb Own lamination process to convenient production for Multilayer PCB and shorten the lead time. Jiangxi facility is environmental-friendly approved by the government . Famous raw materials brand, Kingboard, Shengyi, ITEQ, Taiyo, Guangxin. Highly automated production line with AIO Optical Scanning, Electroplating Automatic Line, High-speed flying probe test machines and inkjet printer. Engineers with more than 15 years of experience Customers located in more than 20 countries, the common choice of 500 high-end companies. Perfect quality inspection system Professional R&D team can make all kinds of special boards. Quick turn, prototype, medium or large batches can be produced to meet the needs of different customers. Quick response to quotes.   For more information about 6 layer pcb fabrication ,...

Number of layers: 6 Surface finish: ENIG Base material: FR4 Outer Layer W/S: 4/2mil Inner layer W/S: 4/3mil Thickness: 1.6mm Min. hole diameter: 0.15mm   Advantages Of pcb 6 layer Own lamination process to convenient production for Multilayer PCB and shorten the lead time. Jiangxi facility is environmental-friendly approved by the government . Famous raw materials brand, Kingboard, Shengyi, ITEQ, Taiyo, Guangxin. Highly automated production line with AIO Optical Scanning, Electroplating Automatic Line, High-speed flying probe test machines and inkjet printer. Engineers with more than 15 years of experience Customers located in more than 20 countries, the common choice of 500 high-end companies. Perfect quality inspection system Professional R&D team can make all kinds of special boards. Quick turn, prototype, medium or large batches can be produced to meet the needs of different customers. Quick response to quotes. The management level is highly educated, 30% have professional ...