Abstract:
According to an aspect of the present invention, there is provided a printed wiring board including: a substrate including an edge and a fixing hole located adjacent to the edge, the fixing hole configured to receive a bolt; and a land formed in a vicinity of the fixing hole and extending in at least a first direction and a second direction, the first direction being a direction from the fixing hole toward a center of the substrate, the second direction being direction along the edge.
Abstract:
PROBLEM TO BE SOLVED: To provide a printed wiring board having a land capable of obtaining a wide packaging area. SOLUTION: The printed wiring board includes: a substrate body 33, having a side 35 for prescribing one portion of the outer periphery and a fixing hole 36 through which a screw 26 is passed while the fixing hole 36 is provided at a position adjacent to the side 35; and a land 34 that is provided near the fixing hole 36, and is spread toward the periphery from the fixing hole 36 in a range between a direction D1 toward a center 45 of the substrate body 33 from the fixing hole 36 and a direction D2 along an extension direction of the side 35. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a printed wiring board having a land capable of ensuring ground performance and obtaining a wide packaging area. SOLUTION: The printed wiring board 31 includes: a substrate body 33, having a pair of sides 35A, 35B for prescribing one portion of the outer periphery and a fixing hole 36 through which a screw 26 is passed while the fixing hole 36 is provided at a position adjacent to the pair of sides 35A, 35B; a land 34 that is provided near the fixing hole 36, and is spread toward the periphery from the fixing hole 36 in a range between a direction D1 toward a center 45 of the substrate body 33 from the fixing hole 36 and a direction D2 along an extension direction of the pair of sides 35; and an insulating height adjustment section 37 that is provided at a position between the fixing hole 36 and the pair of sides 35 and has height equal to that of the land 34. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a packaging substrate having a two-stage structure, where a metal pin is reliably joined to a first substrate, and to provide a crystal oscillator using the packaging substrate. SOLUTION: In the packaging substrate having a two-stage structure, a second substrate 1b is supported onto the first substrate 1a having a mounted electrode on an external bottom surface by the metal pin 4, and the tip of the metal pin 4 is inserted into a hole 5 provided on the surface of the first substrate 1a for fixing to an annular electrode land 6 provided on the surface of the first substrate 1a becoming the periphery of the hole 5 by solder 7. In the annular electrode land 6, a partial annular portion is opened. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
본 발명은: 섀시 베이스와; 상기 섀시 베이스에 상측으로 돌출되도록 장착된 본체부와, 상기 본체부에 연장 형성된 것으로 상기 본체부보다 작은 단면적을 가지는 끼움부와, 상기 끼움부에 연장 현성된 것으로 상기 끼움부보다 큰 단면적을 가지는 덮개부를 구비하는 적어도 하나의 기판 장착부재와; 상기 기판 장착부재의 덮개부보다 큰 단면적을 가지고 있어서 상기 덮개부가 삽입될 수 있는 가이드 홀부와, 상기 기판 장착부재의 끼움부가 끼워지는 끼움 홀부를 구비하는 적어도 하나의 기판 장착 홀;을 구비한 회로 기판을 구비하는 회로 기판 고정 구조를 제공한다.