There is a lot of discussions on how many 5G phones they can produce with domestic BAW filter.
Well, first of all, there is no way to know for sure that HW is not using BAW filter from Murata in its PAMiD. But let's say going forward, what can they actually make with domestic ones.
Well, Memsonic's owner 慈星股份 gave some hint today
投资者:请问,国内BAW滤波器市场规模有多少亿?武汉敏声现在每月产能有多大?请详细回复。
慈星股份董秘:投资者您好,滤波器市场规模数据建议您通过公开渠道查阅行业报告。武汉敏声首期通线最大产能为每月2000片8寸晶圆,平均每片晶圆可制造约4-5万颗滤波器,感谢您的关注。
投资者:请问,武汉敏声BAW滤波器前期产能有多大?后期什么时候可以扩产?扩产后最大规模是多少?
慈星股份董秘:您好,武汉敏声首期通线最大产能为每月2000片8寸晶圆;后期会根据客户与市场因素进行扩产,扩产后最大产能是每月1万片。感谢您的关注。
投资者:请问,武汉敏声BAW滤波器全部投产后,产值每个月能有多大?粗略估算一下就可以。
慈星股份董秘:您好,产值与具体产品的产能利用率、良率相关,尤其是根据客户需求进行的产品规划和销售价格等因素共同影响,武汉敏声的产品组合还会不断丰富,当前无法静态预估产值。感谢您的关注。
投资者:请问,目前武汉敏声生产一片滤波器晶圆可以满足几部5G手机的数量需求?现在月产能可以满足多少部手机使用需求?请回复。
慈星股份董秘:您好,武汉敏声首期通线最大产能为每月2000片8寸晶圆,平均每片晶圆可制造约4-5万颗滤波器。根据公开信息,一部5G手机平均使用滤波器数量约70-100个。感谢您的关注。
All the questions are regarding how many phones you can make with it
Let's start with the basics
40 to 50k/ wafer and 70 to 100 RF filter per phone. Now I actually don't think you will end up using only BAW filters, but let's go with 70 here. And assume they way start off with lower yield so closer 40k/wafer, then you end up with around 600 phones of BAW filter per wafer
x 2000 wafers -> 1.2 million phones or 14.4m/yr
of course, if you end up only needing 50 BAW filter per phone (with remaining as SAW/TF-SAW), then that would be 900 phones of BAW filter per wafer (assuming 45k good filter per wafer)
x 2000 wafers -> 1.8 million phones or 21.6m/yr
if they ramp up to 10k/yr -> would be 70 to 100m/yr of phone they can make
of course, a lot of that would depend on how quickly they can get added to supply chain of domestic phone makers and L-PAMiD companies, but they could theoretically supply all of domestic market in a couple of years if they keep ramping up. Of course, I'm making the assumption that there will be more players than just Sai Micro & Memsonic here. Even if they end up being the largest player, they will like have < 50% domestic market share in this area
I also took a look at other sources.
This one is pretty good
Hefei 芯投微 (Corecat Micro)
started construction of plant to produce 6-inch SAW/TF-SAW/filter wafers
according to 旷达科技
同花顺(300033)金融研究中心11月18日讯,有投资者向旷达科技(002516)提问, 董秘您好,看到今天的提问,合肥芯投微产量总共5万片每月,年60万片。年产约70亿颗,是不是说芯投微的每片晶圆上平均能切割出1万多颗滤波器?看以前的资料,芯投微的晶圆是6吋的,直径约15厘米,能解释一下怎么能排下那么多的颗数呢?
公司回答表示,合肥芯投微规划产能是3万片/月,根据不同滤波器型号,一片晶圆最多可以切割滤波器2万颗左右。
they plan to produce 30k wpm and around 20k filters per wafer -> 600m/month -> 7B/yr
That kind of gives you an idea of how many you can cut. 8-inch gives 1.8x the cutting areas as 6-inch. And maybe BAW are smaller than SAW.
But looks like 8-inch BAW -> around 40-50k filters per
6-inch SAW/TF-SAW -> around 20k filters per
There are quite a few SAW producers like Maxscned. So we can use this to figure out their production and such.
Remember, China currently needs 20B rf filter/yr. A number that's likely growing pretty fast.