PCB新聞 - pcb科技的常見注意事項

1. 原理圖中的常見錯誤：

(1) 這個re is no signal connected to the ERC report pin:
a. 我/O attributes are defined for the pins when the package is created;
b. 創建或放置組件時，會修改不一致的網格内容, and the pins and wires are not connected;
c. 創建零部件時, 銷方向相反, 並且必須連接非pinname端.
(2) The component went out of the drawing boundary: no component was created in the center of the diagram paper of the component library.
(3) The network table of the created project file can only be partially imported into the PCB: when the netlist is generated, 未選擇全域.
(4) When using multi-part components created by yourself, 從不使用注釋.
2. 中的常見錯誤 PCB板:
(1) It is reported that NODE is not found when loading the network:
a. The components in the schematic diagram use packages that are not in the PCB library;
b. The components in the schematic diagram use packages with inconsistent names in the PCB library;
c. 原理圖中的元件使用PCB庫中引脚編號不一致的封裝. Such as triode: pin in sch
The number is e, b, c, PCB為1, 2, 3.
(2) It can't always be printed on one page when printing:
a. It is not at the origin when creating the PCB library;
b. 組件已移動和旋轉多次, 在邊界之外還有隱藏的字元 PCB板. 選擇以顯示所有隱藏字元, zoom out
PCB, 然後將角色移動到邊界.
(3) The DRC reporting network is divided into several parts:
在裡面dicates that this network is not connected. 查看報告檔案並使用CONNECTEDCOPPER查找它.
此外, 提醒朋友儘量使用WIN2000，减少藍屏的機會； 多次匯出檔案以生成新的DDB檔案,
减少文件大小和PROTEL鎖死的機會. 如果你做一個更複雜的設計, 儘量不要使用自動接線.

In PCB設計, 佈線是完成產品設計的重要步驟. 可以說，之前的準備工作已經做好了.
在整個PCB中, 佈線設計過程具有最高限制, 最優秀的技能, 工作量最大. PCB wiring has single-sided cloth
Wire, 雙面佈線和多層佈線. 還有兩種接線管道：自動接線和互動接線.
之前, 您可以使用interactive預先連接更嚴格的線, and the edges of the input end and the output end should be avoided adjacent
Parallel to avoid reflection interference. 如有必要, 應新增接地線進行隔離, 相鄰兩層的佈線應相互垂直, 而且很容易平行.
產生寄生耦合.

自動佈線的佈局率取決於良好的佈局. 可以預設路由規則, 包括彎曲次數,
過孔的數量, 步驟數, 等. 通常地, 首先探索經線, 快速連接短螺紋, and then carry out
In labyrinth wiring, 首先針對全域佈線路徑優化要鋪設的佈線, 它可以根據需要斷開鋪設的電線.
並嘗試重新佈線，以提高整體效果.

當前的高密度 PCB設計 感覺通孔不適合, 而且浪費了很多寶貴的佈線通道.
解决這一衝突, 盲通孔和埋通孔科技已經出現, 這不僅實現了過孔的作用, but also save many wiring channels
Make the wiring process more convenient, 更平滑、更完整. The PCB板 design process is a complex and simple
If you want to master it well, 你仍然需要大量的電子工程設計師來親自體驗, 然後你就能知道真相.
意思.

以上介紹了PCB科技的常見注意事項. Ipcb也提供給 PCB製造商 和PCB製造技術.