技术
- 网络与连接 - 网关
- 处理器与边缘智能 - 微控制器与印刷电路板 (PCB)
适用行业
- 电网
- 设备与机械
适用功能
- 人力资源
- 产品研发
用例
- 车载远程信息处理
- 视觉质量检测
服务
- 硬件设计与工程服务
- 测试与认证
关于客户
Cavium 是一家总部位于加利福尼亚州圣何塞的公司,致力于开发用于智能网络、通信、存储、视频和安全应用的高度集成半导体处理器。该公司在马萨诸塞州、印度、台湾和中国设有设计团队。 Cavium 的首席 PCB 设计师 Bill Munroe 和硅后验证团队的同事设计评估板,用于确认公司网络处理器的正确操作和电气特性。它们在用于高速 SerDes 设计的多层板上工作,通常层数与系统服务器板中的层数类似,平均有 12,000 个未路由连接和 3,000 个网络。
挑战
Cavium 是一家开发高度集成半导体处理器的公司,其 PCB 设计流程面临着重大挑战。电路板布线的手动过程非常耗时,特别是当芯片越来越多地使用基于标准的高速接口、信号越来越敏感、并且具有更复杂的电气和布局实施限制时。该公司的硅后验证团队负责设计评估板,以确认公司网络处理器的正确运行和电气特性,他们花了 8 到 12 周的时间手工路由关键的高速信号。这没有使用额外的人力资源。随着需要评估板的芯片数量的增加,进度压力也越来越大。当芯片从工厂返回时,团队需要准备好电路板,并且随着 Cavium 提供的网络处理器数量的增加,设计数量也随之增加。
解决方案
Cavium 挑战的解决方案是在他们现有的工具集中找到的。作为一家 Cadence 工厂,该团队实施了 Allegro TimingVision 环境,该环境可在 Allegro PCB Designer 约束驱动的 PCB 设计环境中使用。该技术在设计画布上提供了有关时序和相位信息的实时、颜色编码的视觉反馈。嵌入式定时引擎分析信号相互依赖性以开发智能延迟和相位目标。这极大地加快了路由过程,将其从几周缩短到几天。该团队还使用 Allegro Constraint Manager 进行设计约束管理,并使用 Allegro PCB Router 进行各种逻辑。 Allegro TimingVision 环境改变了 Cavium 的 PCB 设计流程,允许使用 DDRx 接口以更少的层数对其电路板进行更快的“假设”分析,以进行布线研究设计。该团队在使用 Allegro TimingVision 环境时还利用了一些自动交互技术,例如自动交互延迟调整 (AiDT) 技术和带有自动交互中继路由 (AiTR) 的自动交互突破技术 (AiBT)。
运营影响
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