Monthly Archive for June, 2009

A week’s work

I’ve made it through my first week of work without breaking anything expensive, so I consider it to be a success. I’m working at a company called Astronergy, which is the solar division of Chint Group (an electrical and power generation giant in China). The company is only three years old, so a lot of the PV products are under development or are just recently ramping up. Here’s some pictures of the fabrication facility where I work:

one of the astronergy plants

campus 2 astronergy plant

campus 2 lobby

campus 2 lobby

my office! a little sparse at the moment...

my office... after a bit of arguing they reluctantly agreed to let me keep my macbook

The company is considered a “start-up” due to its youthful age, but this term is very different from the loosely defined one I’ve grown accustomed to in Silicon Valley (Astronergy employs hundreds of people). Solar cell production relies on economies-of-scale; the larger the factory the more likely you’ll be able to manufacture at competitive prices. The company specializes in a variety of Silicon solar panels, ranging from thin-film tandem “micromorph” a-Si/µc-Si cells to conventional polycrystalline and monocrystalline Si modules:

monocrystalline Si cells

monocrystalline Si cells

polycrystalline Si cells

polycrystalline Si cells

tandem a-Si/uc-Si cells

tandem a-Si/µc-Si cells

They also plan to manufacture a line of translucent tandem Si modules, which are really cool. These are for potential use in window or skylight applications. If you look at the close-up image, the absorber layer isn’t actually transparent, it’s just arranged in very thin strips:

unframed translucent a-Si module

unframed translucent a-Si module

translucent module close-up

translucent module close-up

My technical title is “Process Engineer” for the thin-film Si division, which means I’m supposed to help iron out kinks in the manufacturing line and see what can be done to optimize the process. My first week mostly consisted of getting to know my co-workers and figuring out the factory layout, as well as the equipment. Unfortunately I can’t take pictures inside the super-secret factory from fear of being shot by executive order of Hu Jintao, but suffice to say that it is very cool. The entire fab is a ISO 14644 Class 7 Cleanroom, so I have to put on a gown, hair net, face mask, shoe coverings, and gloves and then go through an blowdry room before I can even enter:

the latest in cleanroom fashion

the latest in cleanroom fashion

I’m accustomed to making small samples in a lab and then running them through various tests, so walking through the fab for the first time was a really eye-opening experience. Nothing is touched by hand, and the PECVD and laser-scribing machines are the size of large bedrooms. In contrast to a laboratory setting where performance is paramount, here at the factory the overriding factor is quality control. It’s clear that I still have everything to learn about how solar cells are made in the real world!

- Pu Anren

A day at west lake

As I quickly found out from everyone here, the biggest tourist attraction in the area is the West Lake in downtown Hangzhou. After an interesting breakfast composed of an oatmeal-type concoction and mibao (a sort of bread filled with some sugary stuff), Meixie and her husband dropped me off at the lake for the day to do some wandering (they had to run some errands).
The locals weren’t messing around. The lake was gorgeous. There were many old-style Chinese buildings littered around the surrounding park, and the hills in the background facing west were very beautiful. Looking the other way, the lake against the backdrop of a modern Hangzhou skyline provided an interesting contrast. Interestingly, it seemed as if all the non-Chinese tourists were fixated on the pagodas and old statues, while the Chinese tourists were instead snapping photos with the Hangzhou skyscrapers, the future of China, in the background. I don’t want to delve too deeply into that, but you get the idea. Here are some choice pictures from the trip:
After cruising around the scenic parts of the lake, I walked around downtown Hangzhou for a bit. The city was nice, albeit kinda noisy — Chinese people are quite fond of the car horn. However,
As I quickly found out from everyone here, the biggest tourist attraction in the area is the West Lake in downtown Hangzhou. After an interesting breakfast composed of an oatmeal-type concoction and mibao (a sort of bread roll filled with some sugary stuff), Meixue and her husband dropped me off at the lake for the day to do some wandering.
The locals weren’t messing around. The lake was gorgeous. There were many old-style Chinese buildings littered around the surrounding park, and the hills in the background facing west were very beautiful. Looking the other way, the lake against the backdrop of a modern Hangzhou skyline provided an interesting contrast. Interestingly, it seemed as if all the non-Chinese tourists were fixated on the pagodas and old statues, while the Chinese tourists were instead snapping photos with the Hangzhou skyscrapers, the future of China, in the background. I don’t want to delve too deeply into the philosophical meanings of that, but you get the idea. Here are some choice pictures from around the lake:

west lake 1

After cruising through West Lake, I walked around downtown Hangzhou for a bit. The city was nice, albeit rather noisy — Chinese people are quite fond of the car horn. In addition to cars, there were bikes, motorbikes, mopeds, gopeds, scooters, and other miscellaneous 2-wheeled vehicles. The roads in downtown Hangzhou are, by any measure, massive. The average width of the roads was about 8 lanes, clear signs of some serious urban planning done beforehand:
typical street in downtown Hangzhou

typical street in downtown Hangzhou

they like their bikes

they like their bikes

a spirited game of... something

a spirited game of... something

Hangzhou is one of China’s new cities, born as a result of the massive migration of farmers and laborers from surrounding rural areas. Cranes and constructions crews were visible on every block, as were American restaurants and stores. Stores like Gucci and Versace littered the lakeside streets, and it wasn’t unusual to see exotic italian car dealerships:
italian cars that go fast

cars that go fast

three places every child should visit daily

three places every child should visit daily

At first I was convinced that these stores and dealerships were filled with fake goods. Upon further inspection however, the cheapest suit I could find ran upwards of ¥10,000 RMB (about $1500 USD). Which begs the question: where is all of this money coming from?
- Pu Anren

Arrival and first impressions

The transpacific flight was long but surprisingly pleasant. I’m a proud member of the minority of people who actually enjoys airline food. During the flight I made friends with a Chinese couple sitting in my row who were studying in the States but returning to China for the summer to visit their families. Upon hearing my summer plans, the husband made a remark about how lucky I was to be working in Hangzhou. He clarified by reciting an old Chinese saying that roughly translates to “In the sky there is heaven, on earth there is Hangzhou.”

Once the airplane landed, things got interesting. As a safeguard against the H1N1 virus (Swine flu), the authorities monitor the temperatures of every passenger on every incoming flight. Here’s the real kicker: if someone shows a fever, that person plus everyone three rows in front and three rows behind is taken away into quarantine! Temperatures were recorded using handheld laser thermometers — I managed to snap a picture of it using my cell phone camera:

the thermometer of doom

the thermometer of doom

Luckily everyone in my near vicinity was in fine fettle. As I exited the plane into Shanghai’s flagship PVG airport, I was expecting massive crowds of people and long lines. Instead, I walked into an airport which was surprisingly vast and empty, even though I was supposedly arriving during rush hour. Going through customs and picking up my bags was extremely efficient, as the whole process took less than 20 minutes. As soon as a line started to form, airport employees would quickly open up more counters and alleviate the wait. China: 1, Rest of World: 0 (at least for all of the international terminals I’ve been through). Clear signs with English subtitles showed me the way to the bus station, where I boarded a bus to Hangzhou to meet with my host family.

Meixue (pronounced Mey Shwe), my homestay host and an HR employee at Astronergy, picked me up from the Hangzhou bus station. She is a very nice lady, and although she spoke little English (and I very little Mandarin) we got along famously on the car ride to her home. She introduced me to her husband and mother and showed me to my own room, which is certainly much more than anything I had expected:

my host family: Meixie, her husband, and her mother

my host family: Meixue, her husband Jing Sheng, and her mother Tsun Yu

my own room!

my own room!

view from the window

view from the window

In contrast to the horror stories I had heard in the USA, the bathrooms in the house are clean and actually sort of modern-looking. It’s clear that Meixue and her husband are professionals with very respectable incomes. I’ve landed squarely in China’s burgeoning middle class, and I’m excited to get to know and understand Meixue’s family over the next few months.

- Pu Anren

The day before

So, three finals and one lab report later, I’ve finally made it to the end of spring quarter. Now starts the beginning of an epic journey into China. I’m very excited but at the same time I’m very nervous as well. What if I don’t like it? What if the living conditions, pollution, and language barrier prove too much for me to handle?

For the most part, however, I think this will be a great opportunity for me to break out of the Stanford bubble and see what life is like in an up-and-coming region of China. I think it’s good that I’m embarking on the journey alone; this way I’ll have no choice but to assimilate.

I’m told that I’ll be staying with an employee at Astronergy and her family for the 14 weeks that I’m there. It’s certainly going to be an interesting experience, seeing that neither her nor her family speaks very good English, and my knowledge of Mandarin is extremely limited. If all else fails, I’m sure we’ll bond over the universal language — food. Apparently everything in China is deep-fried and loaded with MSG… yummy!

In other news, packing was a real pain, took me almost two full days to get it all done. Here’s some before and after pics:

my room mid-migration

my room mid-migration

after the storm

after the storm

Along with my bags, I should probably also bring along this snazzy-looking document:

Chinese visa

Chinese visa

The visa is double-entry because I’m taking some time off mid-summer for a little eurotrip and to visit Armenia, but more details on that will come later. It’s late and I need to go to bed. Not that I won’t have ample time to snooze on that 13-hour flight from SF to Shanghai tomorrow…

- Pu Anren (my Chinese name, it means “peaceful benevolence”)