Low-emi multilayer circuit board and electronic apparatus using the same

摘要: PROBLEM TO BE SOLVED: To obtain a low-EMI multilayer circuit board by which an unwanted radiation is suppressed structure wherein, when power-supply layer formed of plurality split conductor patterns, capacitances discrete components are connected in parallel between the and grounding layer. SOLUTION: A V2 sandwiched G1 3 another G2 4, signal S3 5 S4 6 3. It difficult to ensure capacitance so as realize low Q using only stray ordinary layers because area reduced pattern 2-2 or like. Then, means easily increase composed many kinds power- supply patterns made proper, chip capacitinces 15 (15-1, 15-2) used 4 Q.