Presentation from CETC 55th institute on their SiC product.
work on this was reported a while back here
Now, looks like FAW has completed its testing and evaluation after 15000 km of road testing for the 1200V/400A SiC power module. 1200V/600A HPD module has completed testing on electric
主驱电机控制器应用方面,采用传统HPD封装,基于自主芯片,1200V/400A全SiC功率模块,装车过百量,完成1.5万公里路试验证。采用G2+ 1200V/16mΩ, 750V/11mΩ 芯片,合作研制塑封模块,一汽完成模块级测试评估。1200V600A HPD模块,完成电动摩托30kHZ高频工况验证。
I think given that back in April, they had just completed trial production. And no after 15000 km and over 100 cars testing, FAW has finally finished validation here of the power modules
It's not a simple process
First you start with a design and you need a fab to work with you to complete taping out, which takes months and a lot of money. And then once that's out, you measured its performance vs theoretical performance, then you can start trial production. In many cases like with Memsonics, it spent money with Silex to buy the equipments to move in for wafer production. And then you have a bunch of chips and can start testing out with various customers. In FAW/55th Institute case, CETC is an IDM, so designed the power module and makes them. In Memsonics case, it need to work closely with Silex to produce its different products. Then, they hand it to customers. In Memsonics case, either to RFFE manufacturers for integration into L-PAMid or to smartphone makers. In CETC's case, it just works with FAW. But in both cases, they need to wait for a while until the validation is complicated. If the customer is happy with the yield & trial production performance, it will sign long term contract for producing x # of wafers and fab can ramp up production. All of this takes time.
HW had to probably work with SMIC for several years until SMIC able to produce them product with yield & performance that satisfy them. Several batches. Each batch, things gets a little better.
And in Memsonics case, it seems like everyone is happy with the results, so they placed massive orders and Memsonics can ramp up production quickly (one would hope. based on 2k wpm of 8-inch wafers, I calculated at least 120m BAW filters a month). Whereas huntersun may have passed 1 or 2 customer's validation and nothing more (especially not with 5G phones. As such, Memsonics right now is likely the only mass produced BAW filters that Chinese smartphone makers have actually validated and ordered large quantity of.